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HK Review: Pakistan Ordnance Factory vs German HK products
2016-09-20
Tool Review: East German Makarov Tools
2016-09-20

Tool Review: East German AK Armorer Tools

(updated 04-09-20202)
Introduction
Its hard to do a job correctly if one doesn’t have the proper tools. I have made a hobby of collecting armorer tools to go with the wide variety of firearms that come into my shop. Some I may never use, but are works of art, both in their concept and execution. Others are overly complicated for tasks that can be better performed with a hammer and punch. Here is a look at some of the many tools I’ve been designing and collecting over the last 20 years.

The East Germans produced a nice armorer tool chest for the AKM (MPi-KM/KMS-72), RPK (MPi-LMG) and the Makarov (Pistole – M). With the help of John Baum at GermanManuals.com , I have figured out what they all are for. Here are the ones for the AK family. The numbers are the East German part numbers. V seems to associate to a fixture, while W seems to correspond to a tool, and L to a gauge.

Tool Chest

East German AK Armorer Tools
ddr Tool Chest East German Armorer Tool Chest with tools removed for photographing. While sturdy, there are no drawers, just wood shelves cut out to fit the parts. The tools found a better home in my shop tool chests, and I gave away the chest itself.

I’m not one of those who must have everything original, to fondle under candle-light . . . while naked. They are just tools to me.

Bolt Assembly

East German AK Armorer Tools
V 111 bolt fixture

East German AK Armorer Tools
V 111 firing pin protrusion.

this holds the firing pin flat to the rear of the bolt, to allow the firing pin to be measured with a protrusion gauge.


East German AK Armorer Tools
V 111 bolt disassembly.

The vertical hole is for the firing pin retaining pin, the diagonal hole is for the extractor retaining pin.

I rarely need it, but on the rare instance where a firing pin retaining pin is stuck, this is very helpful.

I made a sleeve for 5.45mm bolts.

Shaping, Forming and Support Mandrels

East German AK Armorer Tools
V 113 forming mandrel, receiver at lower handguard insertion point
East German AK Armorer Tools
V 113 forming mandrel in use.

I haven’t come across a receiver yet, needing this repair.


East German AK Armorer Tools
V 112 support for rear sight base – catch lever installation, removal, and rivet flaring

East German AK Armorer Tools
V 112 support for rear sight base – tightening catch lever without removing

I’ve used this frequently, on guns where the catch lever was flopping around. It’s important to support the rear sight base – not because the base will compress, but because the end of the catch is thin. Failure to support the overall length of the catch axle will result in the end of the catch bending, rather than the outside area flaring (ask me how I know).


East German AK Armorer Tools
V 112 support for rear sight base – removing or installing catch lever

This keeps force on the axle and off the rear sight base.


East German AK Armorer Tools
V 108, V108-1 top cover reshaping mandrels.

given that new top covers, are relatively inexpensive, I’ve not found a need to actually repair a dented cover.


East German AK Armorer Tools
V 108 top cover reshaping mandrel – min selector clearance.

a selector that bypasses the stop n the top cover, will push the disconnector forward and with it, causing the trigger to rotate back – firing the rifle.


East German AK Armorer Tools
V 108-1top cover reshaping mandrel – max selector clearance
Pistol Grip

East German AK Armorer Tools
V 115 support for pistol grip bolt while staking.

East German AK Armorer Tools
W 42 staking tool, square, for pistol grip bolt

East German AK Armorer Tools
W 42 staking tool, square, for pistol grip bolt, in use

Since American shooters often want to switch their furniture around, I do not stake this bolt on customer guns. Once staked, this bolt becomes a threaded rivet.

Gas Tube

East German AK Armorer Tools
V 117 gas tube support for numbering

East German AK Armorer Tools
V 117 gas tube support in use
East German AK Armorer Tools
W 108 gas tube reshaping mandrel

I’ve not used it for its intended purpose, as gas tubes are usually cheaper to replace than to repair. I have used it to secure a gas tube in the mill vise, for recutting the cam angle for the retaining lever, after building up a loose one with weld.


East German AK Armorer Tools
V 102 disassembly tool, upper handguard

East German AK Armorer Tools
V 102 combined with gas tube support mandrel

East German AK Armorer Tools
V 102 in use

this is a tough one. I can usually remove an upper handguard by clamping the gas tube in a vise, on the receiver side, and then pressing down hard with my hand and rotating. Or by holding the handguard and using an open-end wrench. But there are times when the handguard is on so tight I must use this tool. The problem is, if it is tight enough to need the tool, using the tool will often mar the handguard. So it’s a last resort.

Muzzle Device

East German AK Armorer Tools
W 117 crank for installing and removing muzzle nut

East German AK Armorer Tools
W 117 crank for installing and removing muzzle nut, closeup

I don’t see many customer guns that use a nut instead of the slant brake, and the nut is so tight that the wrench is useful. If it is seized, vibrating the heck out of it with an air-hammer and a nylon tip, will usually work it loose.


East German AK Armorer Tools
W 117.1 crank for installing and removing slant brake

East German AK Armorer Tools
W 117.1 crank for installing and removing slant brake, closeup

This is another of the last-resort tools. If the nut is so tight, and vibrating with a nylon-tipped air hammer is insufficient, then it’s also probably too tight to keep this tool engaged. The ramp portion of the slant brake makes the tool want to climb off. Where I do like it is when I have threads that are just tight – it allows me to work the brake back and forth and lap out any high spots.

Magazine and Magazine Catch

East German AK Armorer Tools
W 104 magazine reshaping mandrel

At the time of this writing, quality steel magazines are $15. So there is a limit to how much time I can spend “repairing” a magazine, before it exceeds replacement cost. But there have occasions for it. The shortcoming is that it only helps for dents in the flats, not the ribs. For those I use shaped grade 5 bolts and a hammer – see the section on FAL magazine repair.


East German AK Armorer Tools
W 107magazine catch axle pin top flaring punch

East German AK Armorer Tools
W 107.1magazine catch axle support base with bottom flaring punch

East German AK Armorer Tools
W 107.2 magazine catch axle flaring support base with bottom flaring punch installed.

East German AK Armorer Tools
W 107 magazine catch axle flaring assembly, in use.

I’ve found that for most magazine axles, the point on this punch and mandrel are too sharp – they bottom out while the flaring is still incomplete. So I rounded off the tips and they now work much better. Magazine catch height, particularly in 5.45 and 5.56 AKs, is a significant cause of feeding problems, so I use this tool all the time.


East German AK Armorer Tools
W 116 magazine catch assembly pliers

These are the single greatest prize in the chest. The job is so much harder without it. Assemble the mag catch and spring using a 4mm punch as a slave. Once squeezed, the slave can be removed, the assembly inserted in the trigger guard, and the catch axle inserted. Easier with three hands, but I’ve managed it by myself hundreds of times.


East German AK Armorer Tools
W 116 magazine catch assembly pliers, in use. I commissioned a company to make a hundred sets for me, but after a year, they’d accomplished nothing more than a single non-heat treated sample. So I’ve put it on the back burner for a while. The unit pictured is for the round-bottom AKM mag catch.

East German AK Armorer Tools
W 116 magazine catch assembly pliers, closeup

Filing a little step in it makes it work better for the flat bottom AK74 mag catch.


East German AK Armorer Tools
L 101.1 gauge, magazine feed lips

East German AK Armorer Tools
L 101.1 G (GO) side passes through without binding

East German AK Armorer Tools
L 101.1 A (NOGO) side does not pass through

East German AK Armorer Tools
L 102 gauge, magazine catch

East German AK Armorer Tools
L 102 inspects for 98 degree angle.

when welding up an undersize mag catch, this is a quick and easy way to confirm the angle. Since the sides of the catch can be crushed if tightened in a mill vise, I typically reshape on a belt sander. Having this in one hand keeps my angle correct.


East German AK Armorer Tools
L 102 with G side against back of mag well, mag catch should contact gauge, with A side, there should be a gap.

New magazine catches come with the stop oversize. It must be filed to obtain the dimensions G and A. I’ve had enough practice that I can eye-ball it, but it’s nice to be able to confirm with the gauge.

Sights

East German AK Armorer Tools
W 111 adjustment tool, front sight height

East German AK Armorer Tools
W 111 adjustment tool, front sight height, in use

The chest came with 2 of these and I’ve broken one already. The US commercial one that is closed on the sides, tends to work better.


East German AK Armorer Tools
W 120 rear sight pliers

broke them on first use. Could be a fluke, but the modified screwdriver shown in the ARS tools section, works very well.


East German AK Armorer Tools
W 120 rear sight spring removal pliers, closeup

East German AK Armorer Tools
W 120 removing rear sight

East German AK Armorer Tools
W 120 removing rear sight spring

East German AK Armorer Tools
W 120 compressing spring to install rear sight

East German AK Armorer Tools
L 103 gauge, measures front sight height

Filing a little step in it makes it work better for the flat bottom AK74 mag catch


East German AK Armorer Tools
L 103 gauge measures front sight height

this has little application for the gunsmith. For a unit armorer, it allows a record of front sight height, so that it can be returned to that height after repair work. Presumably, this makes re-zeroing faster.


East German AK Armorer Tools
V 103 front sight windage adjustment

East German AK Armorer Tools
V 103 handle, front sight threaded cylinder insertion

East German AK Armorer Tools
V 103 handle, front sight threaded cylinder insertion, in use

East German AK Armorer Tools
V 103 front sight adjustment, in use

This is very useful for installing a new threaded cylinder. For actual windage adjustment, I prefer the large Chinese unit, as it will work also on unitized gas block sights (like on the AK74u), and this unit will not.


East German AK Armorer Tools
V 103 front sight adjustment, in use

East German AK Armorer Tools
W 35 Marking punch for front sight alignment.

It is traditional after a rifle is zeroed, to stake an index mark on the cylinder, crossing the front sight base.


East German AK Armorer Tools
W 35 Marking front sight after obtaining proper zero.
Fire Control Group

East German AK Armorer Tools
W119 fire control group assembly slave pins


East German AK Armorer Tools
W 115 hook for removing and installing troublesome springs

East German AK Armorer Tools
W 115 tip allows for pulling or pushing springs

I really like this simple tool and use it all the time. The push function is particularly useful, as the pull function can be duplicated with any hook.


East German AK Armorer Tools
L 104 gauge, auto sear timing

East German AK Armorer Tools
L 104 with upward pressure on the bolt carrier, closing on the 3mm side should release the hammer.

East German AK Armorer Tools
L 104 with downward pressure on the bolt carrier, the 6mm side should not release the hammer

East German AK Armorer Tools
L 105 gauge, auto sear clearance and hammer

East German AK Armorer Tools
L 105 this gauge inspects maximum inward protrusion of auto sear – must not touch gauge. The square 11.8 mm section inspects distance from top of receiver to hammer while hammer is retained by auto sear. May touch, but not bind.

East German AK Armorer Tools
L 106 feeler gauges for the inspection and adjustment of the fire-control group
Bayonet

East German AK Armorer Tools
L 107 gauge, bayonet contour

East German AK Armorer Tools
L 107 gauge, bayonet contour, in use
Ejector

East German AK Armorer Tools
L 108 gauge, ejector

East German AK Armorer Tools
L 108 inspects maximum inward protrusion of ejector – bottom view.

East German AK Armorer Tools
L 108 top view.
Bolt Carrier & Gas Piston

East German AK Armorer Tools
L 114 bolt carrier gauge

East German AK Armorer Tools
L 114 measures overall length of bolt carrier with GO/NOGO

Generally speaking, 1/8 turn of the gas piston establishes the proper overall length, but this is a convenient (albeit complicated) method for confirming.

Stock

East German AK Armorer Tools
V 104 shoulder stock removal lever

East German AK Armorer Tools
V 104 shoulder stock removal lever

East German AK Armorer Tools
V 104 shoulder stock removal lever

East German AK Armorer Tools
V 104 shoulder stock removal lever,p. a custom angled tip for the air hammer, applied to the front of the stock inside the receiver, works much faster. On Romanian rear trunions, where there is a circular cut-out, driving a wedge through the cut-out usually breaks the stock free.

East German AK Armorer Tools
V 116 support for side-folding stock

East German AK Armorer Tools
W 1 punch for staking folding stock axle pin

East German AK Armorer Tools
W 1 staking punch in use

East German AK Armorer Tools
W 121 punch for staking folding stock screw

East German AK Armorer Tools
W 121 staking punch in use

an original stock screw is concave and designed to be fared, converting it to a flared rivet. I will counterbore commercial screws for the same purpose. Loctite is generally insufficient. The heavy vibrations of an AK firing, tend to make any screw want to walk out.


East German AK Armorer Tools
W 102 pilot and pre-threading tool for stock screws

Leave it to the Germans! This is actually a great tool, unfortunately the East German screw is different than Russian or Romanian, so it’s of limited use. But it sure is nice not to fight initial screw installation in in a virgin stock.

Misc

East German AK Armorer Tools
W 122 die, cleaning rod threads.

East German AK Armorer Tools
W 106 bayonet sheath re-shaping mandrel

East German AK Armorer Tools
W 106 bayonet sheath re-shaping mandrel

East German AK Armorer Tools
W 106.1 handle for removing bayonet sheath tension spring

East German AK Armorer Tools
W 114 wrench, upper and lower handguard retaining levers

East German AK Armorer Tools
W 114 wrench, lower handguard retaining lever, in use

After years of use, I broke this end, but using a carbide cutter, I was able to fabricate a new slot.


East German AK Armorer Tools
W 114 wrench, upper handguard and gas cylinder retaining levers, in use
East German AK Armorer Tools
7.62×39 dummy rounds Plastic with aluminum base
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