Samson AK-47 1913 Rear Trunnion Folding Stock Adapter Stamped AKM Type - 04-06090-01
Product Description
Upgrading a traditional AKM or AK-47 rifle with a modern, modular side-folding stock or stabilized pistol brace has historically forced shooters into an administrative and physical bottleneck. Standard stamped receivers outfitted with a legacy fixed-stock rear trunnion tang lock the platform into obsolete ergonomics unless you make a permanent, irreversible commitment—specifically, using a hacksaw to chop the steel tang completely off the rifle. The Samson 1913 Rear Trunnion Folding Stock Adapter completely bypasses this destructive modification, dropping cleanly into the existing factory trunnion configuration to deliver a standardized vertical Picatinny rail interface without altering a single millimeter of the gun’s original receiver lines.
Precision CNC-machined right here in the United States from a solid block of high-tensile 6061-T6 aerospace-grade aluminum, this all-metal adapter provides extreme structural rigidity without introducing front-to-back balancing penalties. The entire component is treated with a military-spec MIL-A-8625 Type III Class 2 hardcoat anodized shell that seals the aluminum against aggressive carbon blast fouling, harsh cleaners, and raw outdoor elements. This dense, matte black finish integrates seamlessly with classic ComBloc parkerized or painted steel finishes, providing an upgraded, professional appearance that feels like an intentional continuation of the factory design.
Once secured into the receiver, the adapter presents a robust multi-slot 1913 Picatinny vertical rail section that stands ready to anchor any high-performance tactical furniture utilizing a standard rail-clamp hinge assembly. This opens up full cross-compatibility with SIG-style side-folding stocks, minimalist skeletonized stocks, or modern stabilizing braces. Because it anchors inside the heavy internal trunnion pockets and relies on standard mechanical locking points, it forms an absolute zero-play interface that removes all stock wobble, flex, and structural slop during fast target transitions or heavy recoil absorption. It represents the perfect structural bridge for shooters looking to fuse modern tactical modularity with classic Kalashnikov reliability.
*Armorer Bench Notes & Technical Maintenance Guidance: The Samson 1913 adapter is designed to match standard Soviet-spec stamped receiver geometry, such as the Romanian WASR-10, Century Arms BFT-47, and common Polish or Russian parts kits. However, because AK manufacturing tolerances vary significantly between different factories and eras, the adapter insert tab is machined slightly proud to ensure a secure fit; consequently, some receivers with tight internal weldments or thick walls may require minor hand-fitting with a fine metal file or a few light taps from a nylon mallet. Reuse your original factory rear tang screws for installation. To guarantee absolute zero-drift retention under the distinct, violent counter-recoil impulse of the 7.62x39mm piston assembly, thoroughly degrease the trunnion threads and apply a medium-strength blue thread-locking fluid to all mounting fasteners.
Key Features
- No-Cut Rear Tang Integration: Seamlessly retrofits over standard fixed-stock rear trunnions, allowing the installation of folding furniture without permanently altering or damaging the rifle frame.
- MIL-STD 1913 Picatinny Rail: Provides a rigid vertical mounting track optimized for attaching state-of-the-art modular side-folding rifle stocks and mechanical pistol braces.
- 6061-T6 Billet Construction: Machined entirely from premium lightweight aerospace aluminum to survive abusive tactical environments while trimming down unnecessary tail-heavy bulk.
- Type III Hardcoat Anodized: Covered in a thick, uniform matte black hard anodized armor layer engineered to resist surface scratches, abrasion, and harsh environmental corrosion.
- Rock-Solid Zero-Play Lockup: Anchors directly to the receiver architecture to eliminate mechanical flex and side-to-side slop, enhancing accuracy and stock consistency.
Product Specifications
- Brand: Samson Manufacturing
- Model Line: AK Modular Component Series
- MPN/SKU: 04-06090-01
- UPC: 850028390481
- Firearm Fitment: Stamped AK-47 / AKM Pattern Receivers equipped with standard rear trunnion fixed-stock tangs
- Mount Interface: MIL-STD 1913 Picatinny Vertical Rail Section
- Material: 6061-T6 Aerospace Aluminum Billet
- Finish: MIL-A-8625 Type III Class 2 Hardcoat Anodized (Matte Black)
- Country of Manufacture: United States (New Hampshire)
- Package Includes: 1x Rear Trunnion 1913 Adapter Block, Internal Mounting Fasteners, Hex Wrench
