The Rock River Arms Carbine Length Recoil Spring is a purpose-built AR-15 component designed for use with A-4 collapsible buttstocks. Engineered to deliver consistent cycling and dependable recoil management, this carbine-length spring helps keep your rifle running smoothly shot after shot.

Ideal for AR-15 owners looking to maintain or refresh their carbine buffer system, this recoil spring supports reliable function during range sessions, training, and general recreational shooting. Its straightforward design allows for easy installation when replacing a worn spring or completing a new build, reflecting Rock River Arms’ focus on practical performance and proven reliability.

• Manufacturer: Rock River Arms
• Model: Carbine Length Recoil Spring
• Firearm Type: AR-15
• Compatibility: For use with A-4 collapsible buttstock
• Delivery Weight: 0.023 kg