ADAPTER 4.5MMMI AK PICATINNY END PLATE

The Midwest Industries AK Picatinny End Plate Adapter for 4.5mm pin AKs brings modern ergonomics and accessory compatibility to your rifle. If you run an AKM-pattern AK with 4.5 Pin configuration, this adapter solves the problem of limited stock options and rail mounting—replacing your standard trunnion with a Milspec 1913 interface so you can use contemporary AR-style stocks and attach gear using standard Picatinny rail systems. It's a practical upgrade for shooters who want better controls, comfortable cheek weld options, or the flexibility of side-folding configurations without rebuilding the entire receiver.

Installation is straightforward if you have the right tools and a basic understanding of AK takedown; Midwest Industries rates the job at 15 minutes or less. Keep in mind you'll need to cut off the existing stock tang to fit the new adapter, and your particular rifle may require minor gunsmithing depending on fit. The adapter itself features heavy-duty steel tension blocks that lock everything down securely, and the 6061 aluminum body is hardcoat anodized for durability in the field. Built entirely in the USA, it backs up its reputation with Midwest Industries' lifetime warranty.

This adapter opens up your 4.5 Pin AK to the full universe of modern tactical stocks—fixed, adjustable, or side-folding—without compromising reliability or ergonomics. Whether you're a competitive shooter, hunter, or just someone who wants professional-grade modularity on an AK platform, it's a smart investment that transforms your rifle's capability.

Key Features

• Replaces standard AKM trunnion with Milspec 1913 Picatinny rail interface
• Enables use of modern AR-style fixed and side-folding stocks on 4.5 Pin AKs
• Steel tension blocks provide secure, snug fit
• 6061 hardcoat anodized aluminum construction for durability
• 100% made in the USA
• Midwest Industries lifetime warranty

Specifications

Frequently Asked Questions

Is this adapter compatible with my AK?

The Midwest Industries 4.5mm adapter is designed for AKM-pattern rifles with 4.5 Pin Size configuration. Midwest also makes versions for 5.5 Pin and Yugo models, so verify your rifle's pin size before ordering. If you're unsure, compare your receiver to reference photos or consult the manufacturer's compatibility guide.

What stocks can I use after installing this adapter?

Once installed, the adapter accepts any 1913 Milspec Picatinny-compatible stock—both fixed and side-folding designs. This opens up options from mainstream tactical stock manufacturers and gives you the modularity common on modern AR platforms.

Do I need a gunsmith to install this?

The adapter can be installed in roughly 15 minutes with appropriate tools, but you must cut off the existing stock tang to fit it. Depending on your rifle's condition and your experience level, minor gunsmithing may be required. If you're not comfortable working on receiver-level components, having a qualified gunsmith handle the job is the safest approach.

What's included, and does it come with a warranty?

The adapter itself is included. Midwest Industries backs all its products with a lifetime warranty against defects in materials and workmanship—no registration required.