The Midwest Industries AK Picatinny End Plate Adapter in 5.5mm (Midwest Industries part no. MI-AK-PEPA-5.5) replaces the standard trunnion on an AK-pattern rifle with a Mil-Spec 1913 Picatinny rail interface, opening the door to a wide range of standard AR-pattern stocks and accessories. Midwest Industries machines this adapter from 6061 aluminum with a hard-coat anodized finish, and the 5.5mm sizing matches specific AK trunnion thread specifications for a precise fit. Once installed, the adapter allows the use of 1913-style fixed or side-folding stocks, giving AK owners far more stock options than the platform’s traditional folding or fixed stock hardware allows. Gunsmithing may be required for proper installation, and the part is made in the USA.

Key Specifications

• Thread sizing is 5.5mm, matching specific AK trunnion specifications.
• Replaces the standard trunnion with a Mil-Spec 1913 Picatinny rail interface.
• Constructed from hard-coat anodized 6061 aluminum for durability.
• Enables use of 1913-style fixed or side-folding stocks.
• Manufactured in the USA; gunsmithing may be required for installation.

Frequently Asked Questions

Does this adapter require gunsmithing to install? Yes, gunsmithing may be required for a proper, secure installation on the AK trunnion.

What stocks does this adapter allow? Once installed, it allows the use of 1913-style fixed or side-folding stocks on an AK-pattern rifle.

What is this adapter made from? It is machined from 6061 aluminum with a hard-coat anodized finish.

Buy the Midwest Industries AK Picatinny End Plate Adapter

Open up standard stock options on your AK-pattern rifle. Order this Midwest Industries adapter from our AK parts selection, with fast, insured shipping from our Lubbock, Texas gun shop.