ProMag ARCHANGEL AA556R adjustable six-position stock - Black with Bayonet

The ProMag ARCHANGEL AA556R adjustable six-position stock in black with bayonet is a modular buttstock designed for modern tactical rifles chambered in 5.56 NATO. Built for shooters who demand ergonomic control and field-proven reliability, this stock addresses a critical need in the operator community: the ability to adjust length of pull for body armor, gear configuration, and shooting position without tools or secondary equipment. Whether deployed in law enforcement operations, military training, or tactical competition, a six-position adjustable platform reduces transition time and improves repeatability across varied shooting scenarios and personnel.

The AA556R design features six discrete adjustment positions that lock solidly into place, eliminating creep or unwanted movement under recoil—critical for maintaining consistent cheek weld and sight picture. The integrated bayonet lug accommodates standard M16-pattern bayonets, preserving legacy equipment compatibility while maintaining a compact footprint. The black finish resists corrosion and reduces visible light signature in tactical environments. The six-position mechanism allows rapid accommodation for shooter physiology, body armor thickness, and shooting positions (prone, standing, barricade), making it equally effective for small-framed operators and larger personnel working the same platform. At 4.85 lbs, the stock contributes manageable weight to the overall system while providing substantial material for durability.

This stock is compatible with AR-15/M16-pattern receivers using standard mil-spec buffer tube extensions (not included). Installation requires only a roll pin or castle nut assembly—no gunsmithing needed. Law enforcement agencies, military units, and civilian shooters running 5.56 NATO platforms benefit from the simplified ergonomics and field-swappable nature of a six-position design. Teams managing fleet rifles across multiple operator body types will find the AA556R eliminates the need for multiple stock variants. Verify buffer tube compatibility with your platform before purchase; the stock is designed for standard mil-spec AR-15 receivers and does not require proprietary furniture.