"The American" AKM Buttstock V1.1.2: Laffs Dynamics

A fixed buttstock, similar in overall geometry to standard AKM buttstocks. The overall length of the design is ~1in. (24mm) longer than that of the soviet version. The cheek comb is ~4mm longer than OEM, and is more rounded for better comfort. (The OEM stock comb gets kind of sharp toward the front, and becomes slightly painful under recoil) The hollow portion of the stock has printed reinforcements for enhanced durability, reducing damage from impact forces. 

This design either can be printed as two halves (plus the buttpad) or a single part, for printers with build volumes as large as CR10s. 

Two buttpads are available, either in a convex, or concave shape. (Buttpads can easily be printed in TPU)

Update V1.1.2: Updated buttstock shank for tighter fitment within rear of the weapon receiver. Updated print settings based off the more common Ender 3 3D printers. Updated name of designer. 

Printer Used: Ender 3 V2

Filament Used: PLA+

Print Settings:

Extruder: 220C 
Bed: 56C 
First Layer Print Height: .20mm 
Standard Layer Height: .16mm
Wall Thickness: .40mm
Wall Perimeters: 5+
Infill: 32%

No supports are required for printing.

Hardware Needed: 

2x M4x12mm - M4x15mm Screws

7x Dowel Rods (1/4in diameter, 28mm long)

Gorilla Clear Glue 

Assembly:

NOTE: Skip to step 5 if printing the single part stock.

1) Lightly spray both stock mating faces and dowel rods with water. (Gorilla CLEAR glue cures with moisture.)

2) Apply gorilla clear glue into the dowel rod insertion holes, then press the dowels in.

3) Apply the adhesive the the mating face and dowel rod insertion holes of the stock half (Or whichever half doesn't have the dowel rods inserted.)

4) Press both stock halves together. Wipe away any adhesive squeezeout, and clamp together/put something heavy on the two halves for 2 hours minimum.

5) Screw the buttpad onto the stock's end. 

6) Press the buttstock into the rear trunnion of the AKM, and drive the mounting screws, holding the buttstock in place. 

Note: Should the OEM rear trunnion stock retention screws be of a different diameter, simply drill the holes in the stock to the proper diameter before mounting. Doing this avoids the risk of cracking along layer lines, should you drive larger screws in. 

Initial release