B5 Systems AK Stock 4.5mm Plum

Description

The B5 Systems AK Stock 4.5mm variant is a drop-in upgrade for factory 4.5mm folding stocks, designed to mount to the factory folding trunnion via the 4.5mm pin. It provides improved ergonomics and modular mounting options, including QD and fixed sling attachments, an optic rail cutout, and a cushioned nonslip buttpad. Constructed of composite materials with steel hardware and proudly made in the USA, this stock is intended for users seeking a durable, adjustable platform for AK-pattern rifles.

Key Specifications

• The brand is B5 Systems.
• The model is the AK Stock (4.5mm variant).
• The color is Plum.
• Designed to fit AK pattern rifles and mount to the factory folding trunnion using the 4.5mm pin.
• Constructed from composite materials with steel hardware.
• Includes fixed sling mounts and steel anti-rotational QD mounts.
• Features an optic rail cutout for mounting accessories.
• Includes a cushioned nonslip buttpad for improved shoulder interface.
• The overall length is 9 inches.
• The stock measures 1.2 inches wide and 4.33 inches high.

Built to combine real-world durability with user-focused features, this B5 AK stock offers a practical upgrade for AK owners who want adjustable ergonomics and accessory compatibility without sacrificing ruggedness. Its composite construction, steel hardware, and integrated mounting options make it a versatile choice for routine use and modular setups.