AK-47 Buyers Guide

The online version of the book by Robert Kay

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Milled vs. Stamped Receivers

November 9, 2016 By Robert Kay

AKs are manufactured with two distinct types of receivers—milled and stamped.

Milled receivers are created out of solid chunks of steel.  All the internal guide rails, magazine well and latch surfaces, bolt locking surfaces, bolt carrier stop and the barrel and buttstock receiving sockets are cut from a single piece of metal.

milled-receiver
This milled receiver lacks rivet heads protruding from the sides. The rectangular-shaped cut on the right is for weight reduction. (Courtesy UltiMAK)

As the name implies, stamped receivers are stamped from a sheet of steel and shaped in a series of bending processes that make them more cost-effective to produce.

The original AK-47, called a Type 1, was stamped but this process was discontinued, as the stamping and assembly technology at the time had unacceptably high rejection rates. As a result, the Soviet manufacturers went to milled receivers. The milled version was solid, but machining is a labor-intensive and, more expensive process. Hence, this line was terminated as well.

The Soviets eventually perfected the manufacturing methodology for stamped receivers (which are lighter than the milled versions) and are still produced today.

The differences between milled and stamped receivers are elucidated on the UltiMAK website.

stamped-receiver
Instead of lightening cut, note smaller, more rounded dimple in front of the safety lever and rivets, not present on the milled version. (Courtesy UltiMAK)

Whether to purchase a milled or a stamped receiver will be one of the prospective buyer’s major decisions. From a structural point of view, there’s no question that the milled receivers are stronger and do not flex. However, milled receivers are generally more expensive.

Aesthetically, milled receivers are quite pleasing to the eye, and in this regard, most people would consider them superior.

From a purely practical point of view, they may not be your first choice. Milled receivers are inherently more robust, but they are not necessarily “better.”

While prettier, as alluded to above, they also are heavier than the stamped models. If you plan to do a lot of shooting offhand or lugging the rifle around for extended periods of time, heavy is not optimal. In addition to the weight factor, they also cannot use the more commonly available AKM-type aftermarket furniture.

If you’re just going to shoot off the bench, then it doesn’t matter.

As far as which type of receiver can take more punishment, the milled models purportedly last longer than the stamped versions. According to Ron Cheney, Director at Battlefield Vegas, a Las Vegas shooting range which features fully auto AKs, stamped receivers of every brand usually suffer a “catastrophic failure” (cracked trunion) at 80,000-100,000 rounds.

In Cheney’s experience none of the stamped receivers, regardless of price or provenance, fare much better than others as far as longevity. His facility features rifles from different manufacturers including Saiga, Arsenal, Norinco, WASR and others of Hungarian, Polish and Serbian origin. He had particular praise for the much maligned WASR, which he said held up just as well as the higher priced AKs. Cheney said that none of the rifles with milled receivers (to date) has failed due to a cracked trunnion.

What does this mean for the average person?

Probably, not much. First off, very few people will shoot an astronomical number of rounds through a rifle, much less in a fully automatic mode. Cheney reckons that the average stamped AK that is shot semi-auto should last even longer than 100,000 rounds. Unless you’re planning to open up a rifle range, either a stamped or a milled receiver will serve you well.

sporterized-ak-from-rwc
The finished surface of this receiver shows the classic ‘lightening cut’ which is illustrative of milled manufacture. (Courtesy Rick Davis).

Furniture

Filed Under: Chapter 1, Resources

AK Slings

November 9, 2016 By Robert Kay

The sling for your AK is essential, whether you’re a seasoned tactical shooter or just a visitor to the range.

(If you do visit the range, you’ll see that few people use them. I don’t understand this.)

If I were to think of one item that will improve accuracy and stabilize your shot, this would be it.

One-point-sling is popular with a number of tactical operators. This one is from BLACKHAWK!

 

The one-point-sling (see above) is popular with a number of tactical operators and BLACKHAWK! makes an excellent one.

 

My favorite is the two-point sling that offers an excellent combination of carry and comfort both for veteran shooters and beginners.

Depending on how you configure your sling to your rifle, you can carry it in just about any conceivable position, from the low ready to slung over your back.

You can also use it in an over-the-shoulder carry so that your hands are completely free to do other tasks.

There are a plethora of manufacturers, but I really like the two-point BLACKHAWK! Dieter CQD Sling.

Blackhawk has an impeccable reputation when it comes to designing gear for the tactical shooter. The Dieter CQD model sling was designed for BLACKHAWK! by tactical guru Duane Dieter.

The BLACKHAWK! Dieter CQD Sling stretches like a bungee cord and is really comfortable. (Courtesy BLACKHAWK!)

The CQD sling is a very sturdy item, constructed with 1.25-inch T-13 webbing, which is wider and more comfortable than standard fare. This item is designed for carrying your rifle either over your shoulder in a muzzle-up carry or muzzle-down carry.

The BLACKHAWK! Dieter CQD Sling differs from standard AK slings because it uses “HK style”, gated snaphooks.

The spring-loaded snaphook is made with heavy-gauge metal, and although it does take some dexterity to attach or remove, it’s very safe.

To secure it to the forward end of your rifle, you’ll need a sling swivel or a wire loop, depending on your rifle’s configuration.

Bottom line: It’s exceedingly comfortable to use.

MSRP is around $44.

This AK sling from Blue Force Gear is designed by Larry Vickers. (Courtesy Blue Force Gear)

The new Blue Force Gear Standard AK Sling also is a good bet. Designed by another tactical guru, Larry Vickers, what differentiates this sling from others designed for the AK is a pull tab that allows you to make adjustments on the fly. This option is handy at the range, but if you’re in the field and need to attend to business quickly and without distraction, it’s crucial.

It comes with a loop that utilizes a heat-resistant, non-marring, nylon-coated stainless-steel cable. This is a $25 value alone, so combined with the sling, I think it’s a good deal.

While the pull tab is a modern innovation, this sling has elements of the old and new. For example, the coyote brown-colored nylon strap hearkens back to the old Soviet days.

In addition, the hardware, which is super-durable polymer, matches the famous plum coloring of the old-fashioned Soviet furniture. The apocryphal story is that the Russians actually wanted black furniture, but the factory didn’t get its dye quite right. There are other variations of the story, so believe what you like.

for-traditionalists-arsenal-sells-a-good
For traditionalists, Arsenal sells a good old-fashioned military-style, Bulgarian sling, which works perfectly on this VEPR. (Robert Kay)

As I’ve been advocating in this book, a great deal has to be said for minimalism and the traditional, military style sling from Arsenal fits this definition. Fit, function, and construction are first class. It’s manufactured from canvas and comes in green with a black, anodized snap hook attachment. I found it easily adjustable and comfortable. If you’re not sure how to attach it, fear not, there’s a video that shows you how. Prices for these slings begin at $10 and go up to about $30 depending on whether the item is imported from Russia or Bulgaria or, whether it’s of nylon or canvas construction. The sling featured in the photo is $17. If you’re not using it with a traditional, wood stock, you may need a swivel sling loop or two to attach it to the rifle.

AK WIKQD Sling Mount

The AK WIKQD sling mount from RazorSix Tactical allows AR-type slings to be adapted to most AK rifles with a quick-detach (QD) system. It’s a very clever design that clamps onto real estate available on the gas block.

According to the company, the mount has been field-tested in combat conditions and has proven to be 100 percent reliable with no failures or accuracy issues. It works on virtually all AK variants, including AKS, AKM, RPK, Israeli and South African Galils.

It does not affect the accuracy or harmonics of the AK. Made from 6061 aluminum, it is anodized black and laser-engraved with the company’s diamond logo. Priced at $40, RazorSix offers a lifetime warranty on the product.

this-wikqd-mount-from-razorsix
This WIKQD Mount from RazorSix Tactical is placed on the gas block. (Robert Kay)

To install it, simply remove the gas tube and nudge the AK WIKQD into position.

I needed to use a screwdriver blade to force the clamp open a bit, which is all it took to slide it into place. You cinch it down with a Philips screw and a little Loctite. There’s a cavity for the QD mount.

I thought the little device worked perfectly. It’s about as forward as you can put a mount, and in my book this was a big plus, because it affords you more muzzle control.

Filed Under: Product Reviews

Safety lever Upgrade

November 9, 2016 By Robert Kay

The humble safety lever is usually not high on the customization list for neophytes, but it should be.

I suggest you consider swapping out your stock safety lever for a Krebs Custom model. The Krebs products are an enhancement of the original part because they help the shooter perform a simple but extremely important task —taking full control of the operation of the safety lever. The design allows for continuous finger contact throughout the entire range of motion.

The extended shelf on the lever is ergonomically correct and easy to operate. You can flip the safety with your trigger finger while keeping the shooting hand firmly around the pistol grip.

The location and shape of the lever, a distinct curve, allows the finger to instantly return to the trigger in one fell swoop.

You’re not going to be distracted or lose your sight-picture, even when using an optic.

Another innovation not immediately noticeable to the novice is a bolt hold-open (aka BHO) slot on the lever. The BHO catch allows the operator to easily keep the bolt open so that the range officer can observe whether there’s a round in the chamber.

the-krebs-mark-vii-ambi
The Krebs Mark VII Ambi Enhanced Safety allows righties to manipulate the lever with the index finger and lefties with their thumb. (Robert Kay)

For years the standard replacement for the stock safety was his Mk VI series ($59), which Krebs designed for Russian-pattern milled and stamped receivers.

The newest addition to the Krebs line is the Mk VII “Ambi Enhanced Safety” ($65.00) made for both left- and right-handed shooters.

Right-handed shooters can manipulate the safety with their index finger and lefties can do so with their thumb.

Quality and finish are first-class on all models. The coating is a durable, smooth matte. The good news is that you don’t have to pay a gunsmith to swap out your safely. Even if you’re a rank amateur, they are easy to install. Simply remove the recoil spring and rotate the old safety toward you. At a certain point, it will pop out of the hole in the receiver. Put the new one exactly where the old one was and rotate in the opposite direction (down). The recoil spring goes in, as does the dust cover. Bingo, you’re done.

In addition to the Krebs Custom series, I’ve heard good things about the R&R Targets safety. The caveat is that it’s not a drop-in. Your gunsmith will have to do some tweaking.

Filed Under: Chapter 5, Resources

AK Trigger Upgrade

November 9, 2016 By Robert Kay

An AK trigger upgrade may be in your future. Although the standard trigger system (aka fire control group) is decent, with some modifications can be an excellent trigger. The modifications entail smoothing out a few rough edges on the hammer. If you’re interested in researching this, there are number of videos on this subject. R&R Targets has developed a good trigger based on the Tapco.

A better option is to purchase the AKT-EL trigger system from ALG, a subsidiary of Geissele, a company renowned for excellent AR 15 (and other rifle) triggers. (I own an AKT-EL system and love it). The standard version is priced under $65. You can also get the enhanced AKT-UL version which competition shooters will dig.  Krebs Custom also has an excellent trigger modified from the Geissele.

alg-defense-ak-trigger-r-161
The AKT fire control group has a distinct, lightning bow shaped trigger. (Courtesy ALG). A version of this is also available from Krebs Custom.

Instead of taking a file or sandpaper to the trigger, another option is to swap out the fire control group. There are some good videos that will show you, step by step, how to do so. Changing out your FCG is not an inordinately difficult task for someone who has a modicum of mechanical skills and common sense.

Why would you want to replace a decent trigger in the first place?

Some folks, especially those who have owned rifles or 1911 pistols with good triggers are simply fussy. Or they may want their AK to have a quick reset for rapid fire.

There are any number of reasons but it comes down to an individual’s specific needs or desires.

AKT-UL (Enhanced) features a lighter and crisper break than the standard AKT Trigger, making it ideal for precision shooting

Unlike some trigger sets for the AR, most AK triggers are not adjustable. One exception is the model from Red Star Arms, which can be adjusted as a one or two-stage affair.

A company called CMC Triggers  has a new drop-in style model specifically for the AK. It’s the first decent modular trigger for the AK that I’ve tested.

The only word of caution, and this goes for installing any third-party part in an AK, is be certain that the trigger you acquire will work precisely with your AK.

I installed a Red Star Arms trigger on a VEPR and eventually got it working, but it was a real chore to do so, meaning we had to take dremel and do quite a bit of grinding on the safety. This is not something for the beginner.

The Joys of Trigger Slap

Another reason to install a new trigger is if after you purchase your gun you experience “trigger slap.”

Trigger slap is a common occurrence in AKs. You’ll certainly know it when you feel it.

trigger-slap-afflicts-many-an-ak
Trigger slap afflicts many an AK. This illustration by Rick Davis shows how force from the bolt carrier transfers to the trigger. It can be resolved.

Trigger slap is the stinging sensation of the trigger springing back or “slapping” the shooter’s trigger finger during firing.

It’s a sharp, unambiguous jolt that can occur with every shot or intermittently, sometimes favoring a particular type of ammunition. It’s often misdiagnosed as an ammo problem.

It can be mitigated by changing out the trigger, or you can have a gunsmith or someone very familiar with an AK fire-control group fix it.

It’s caused, says AK maven Rick Davis, when there’s insufficient clearance between the hammer, trigger and the disconnector. When this happens, the force of the resetting hammer is transferred into the trigger through the disconnector, causing the trigger to abruptly “slap” forward.

Says Davis:

“If there’s too much material on the rear disconnector pad, it will lack adequate clearance between the bolt carrier, disconnector and trigger. This results in a chain collision between the bolt carrier, disconnector and the trigger. The energy is then transferred into the shooter’s finger, producing the ‘slap’ sensation.

removing-material-from-the-red-area
Removing material from the red area helps correct trigger slap. (Courtesy Rick Davis).

He says this can be corrected by removing just enough material on the rear of the disconnector near the spring well. Remove only enough to allow proper clearance, no more.

Lyle Keeney, founder of UltiMAK, has a slightly different take on the matter. Says Keeney:

“The only cause I’ve seen was that the camming angles between the hammer and the disconnector were such that the disconnector was being accelerated backward so violently that no amount of clearance would solve the slap. Only by reshaping the camming angles between hammer and disconnector, providing a more gentle rearward motion of the disconnector, was the slap eliminated entirely.”

Keeney states that it’s easy to check for adequate (disconnector-to-trigger) clearance by holding the trigger all the way back as you slowly pull the carrier back to cock the piece, or simply cock the hammer by manipulating it directly with the carrier removed.

If the trigger is not forced forward at all while cocking the disconnector over the hammer, you probably have enough clearance, and should therefore look elsewhere to solve the slap issue.

As alluded to above, if you’re not experienced, correcting trigger slap may not be a task you want to attempt.

However, smoothing out a gritty trigger is do-able, if you’re not aggressive about removing too much metal.

There are a number of videos that will show you how to smooth out the action by applying a little sandpaper or emery cloth. Graham Baates does a nice job with this video.

Filed Under: Chapter 5, Product Reviews

AK Minimalism—Lessons from Larry Vickers

November 9, 2016 By Robert Kay

When it comes to adding handguards and other accessories, less can be more. Like many first-time AK buyers, when I got my rifle I started adding third-party parts and went overboard on the “tacticool.” This included items such as a full-length handguard, optics, fore grips, scope mounts and the like. Before I knew it, I was drowning in paraphernalia.

The lesson was that adding some of these components may make sense in some circumstances, such as home defense, but you need to be wary of “mission creep”. Loading up your rifle with gewgaws has its practical limits. For example, if you’re going to be proficient at shooting offhand, shouldering a 10-pound rifle gets old very quickly.

(My epiphany is hardly original. One of Larry Vickers’ maxims is “seriously resist the urge to over-accessorize the gun”.)

Given my own experience, I’ve become a proponent of minimalism.

ac-15
This Krebs AC-15 7.62×39 which features a shortened barrel with pinned muzzle brake, helps keep the weight down. (Courtesy Atlantic Firearms).

Custom builders such as Rifle Dynamics, Krebs Custom, Definitive Arms and others strive to keep the weight down by using a combination of polymer furniture (often from Arsenal) and in some instances, even chopping the barrel two inches.

Jim Fuller of Rifle Dynamics takes the weight reduction process a step further by employing the Bolton Gas Block, a proprietary product manufactured by Venom Tactical.

This cleverly designed product is the latest incarnation of a technology used by the Israeli Galil, the Finnish Valmet RK62 and other rifles, combines both the front sight and gas block into a single assembly. The system allows you to remove the stock front sight block, which diminishes weight on the front end of the AK47/74 and makes handling the rifle easier. (According to Lenny Bolton, the founder of the company, these gas blocks have been proven reliable in combat conditions).

The Bolton Block, designed by Venom Tactical, combines a gas block with a front sight. Additional weight savings on this rifle come from a shortened barrel and an UltiMAK M1-B optics mount. (Courtesy Rifle Dynamics)

By placing the front sight atop the gas block, the barrel length can be shortened. Jim Fuller has integrated this system on many of his high end rifles. He says that with the proprietary gas block and a shortened barrel, he can take off as much as a pound from the front end. It doesn’t sound like a lot but in practice it’s very significant.

Lenny Bolton states that the shorter sight radius on his gas block/front sight provides faster target engagement. While losing a few inches of sight radius might concern some people, he says that it’s not an issue if you’re going to engage a target under 300 yards. The front sight is adjustable for windage with a simple screwdriver.

up-close-and-personal-with-the-bolton
Up close and personal with the Bolton gas block/front sight. (Robert Kay)

Bolton has sold thousands of the $99 gas blocks. However, he suggests that people without extensive experience should let a gunsmith install the part. If you’re interested in researching how to do it, this article in Rifleshooter.com will illustrate how.

If you’re going to use an optic on your minimalist rifle, there are ways to keep the weight down. Jim Fuller of Rifle Dynamics employs the UltiMAK M1-B optic mount on some of his AKs. This $98 product integrates both the handguard and the gas tube in its design which ends up adding less than an ounce to the rifle.

Lyle Keeney of UltiMAK says that a lightweight red dot atop the rail brings a great deal more “shootability” to a rifle without adding significant weight. It’s still a “minimalist” setup, he insists and is mandatory if you shoot at moving targets, in low light, or at targets of opportunity (requiring fast targeting on short notice).

bottom-view-of-an-upper-handguard
Bottom view of an upper handguard assembly from Arsenal (including gas tube). U-shaped upper handguard is extremely light. (Robert Kay)

You can get a wide variety of lightweight polymer handguard sets from K-Var. Their typical upper handguard is simply a U-shaped section of plastic which covers the gas tube. (Note that the gas tube must have a bracket to retain it). If your gas tube doesn’t have one, you can buy an entire assembly (upper handguard plus gas tube) for about $45. Keep in mind that there’s no rail atop this system so if you want to add an optic at a later date, you’ll need to pick up a side mount.

heat-shield
This lower handguard from Arsenal is super light (4.1 oz.) and has a stainless steel heat shield. (Robert Kay)

The second part of the equation is the lower handguard. K-VAR sells a variety of them from $23-75. All have a stainless steel heat shield. To add it, simply slip the rear end into the receiver and cinch down the opposite side with a special retainer ring or bracket.

There are two styles of retainers.

To keep a traditional look, you can purchase the standard-issue retainer ring from K-VAR for $30. It’s very solid and has a lever, similar to that on the rear sight block, to keep the lower handguard firmly affixed to the barrel. The only caveat is that with this particular setup you’ll have to remove the gas block and the front sight block from the rifle in order to install it. Removing both these parts takes special tools and is best left to a gunsmith.

If you want to keep your rifle as close to original as possible, this is the best way to go.

The handguard retainer ring at left is original equipment for Arsenal and other variants. It’s secured with a lever (visible on the upper left). DPH Arms manufactures a two-piece retainer which is fastened with bolts and can be installed without removing the gas and sight blocks. (Robert Kay)

If you don’t want to go through the hassle of removing the above-mentioned parts, there’s a second style of retainer ring which consists of two pieces.

There are at least three small companies that make these parts. One of the manufacturers, DPH Arms, has a set screw in the center of their retainer ring to help keep it from shifting. It also has shims so that the same unit can be used on a standard AK or taken off so that the retainer can be used on the larger diameter VEPR barrel.

Generally, adding the retainer shouldn’t take any modifications to the handguard. However, Brian Smithwick of Dinzag Arms (which also manufactures retainers) suggests you create a small bulge on the heat shield with a pair of needle nose pliers if you have an AK-74. This protuberance will position the handguard off the barrel and underpin the fit to prevent the AK-74 handguard from sliding up at the front end of the retainer plate.

ring
DPH Arms retainer secures Arsenal lower handguard. (Robert Kay)

 

To install the retainer from Saiga-AK, one must add a notch or divot on the barrel keep the bracket in place.

I didn’t want to adulterate my barrel, nor remove the gas and front site blocks so I decided to go the DPH Arms route. If you are a stickler for detail, professional builders suggest that you use the original equipment retainer from Arsenal but if you don’t have the tools to remove the parts, the two-part brackets will do the trick. The DPH product retails for $44.99 and worked fine.

Both brackets feature a sling mount loop and a hole that secures the end of the cleaning rod. UltiMAK founder Lyle Keeney suggests that if you have a cleaning rod mounted below the barrel you consider removing it to reduced weight. If you need to clean your rifle in the field you can take a bore snake with you.

There’s third type of aluminum retainer available but I would not recommend it. It’s very easy to strip the threads on this item. You’ll want to make sure and purchase a retainer manufactured from steel.

Although the polymer handguards from Arsenal (or similar units made by other manufacturers), are great at keeping the weight down, a KeyMod handguard system is also an option if you feel it’s absolutely necessary to add other accessories, such as a light or a grip to your rifle.

the-ak-ufm-keymod-lower-handguard
The AK-UFM KeyMod lower handguard from Krebs Custom is only 6.6 oz., including the add-on Picatinny rail. (Robert Kay)

KeyMod handguards, such as the AK-UFM model for AKM rifles manufactured by Krebs Custom, are made from aircraft aluminum and they are really light. At 6.6 ounces (including the Picatinny rail) it definitely falls into the “minimalist” camp.

Another weight saving measure is to change out your buttstock if you’re using a collapsible, AR 15-style system. There are a number of lightweight units available including the Rogers Super-Stoc, the Mission First Tactical “Minimalist” model and the CTR from Magpul. In this chapter (see section below) I’ve reviewed these products and other options that are both comfortable, and lightweight.

The lesson is to think twice before you buying add-ons, such as a full-blown tactical handguard/rail system. If you can eschew adding stuff that you don’t really need, or replace your existing gear with something lighter, by all means do so.

With AKs less is always more.

Filed Under: Chapter 5, Resources

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Buy The Book

How to Buy an AK 47 cover Rob Kay
How to Buy an AK 47 cover Rob Kay

Skip to a chapter in the book

  • Foreword–By James Reeves, Firearm Blog
  • Acknowledgements
  • Chapter 1: AK-47 Basics & Introduction
  • Chapter 2: How to buy the Best AK
  • Chapter 3: AK Parts Upgrades
  • Chapter 4: Optics & Mounts
  • Chapter 5: Parts Reviews
  • Chapter 6: Lubrication & Maintenance
  • Chapter 7: Where to Buy your AK
  • Chapter 8: FAQ & Glossary
  • Chapter 9: Online Resources

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