B5 Systems SOPMOD Stock Mil-Spec – AR-15/M4 (FDE)

The B5 Systems SOPMOD Stock delivers stable cheek weld and consistent shoulder contact for faster target acquisition and improved recoil management on AR-15 and M4 platforms. Its wide, textured contact surface distributes recoil force across more of the shoulder, reducing felt impulse during rapid strings and extended shooting sessions.

Built with reinforced polymer construction, this stock features dual waterproof battery storage tubes and quick-detach sling socket mounts on both sides. Installs on any mil-spec carbine buffer tube without modification. The Flat Dark Earth finish matches standard FDE anodizing on receivers and rail systems.

• Type: Fixed-length buttstock
• Compatible Firearms: AR-15, M4, and rifles using mil-spec carbine buffer tube
• Material: Reinforced polymer
• Finish: Flat Dark Earth (FDE)
• Adjustable: 6-position length of pull
• Installation: Slides onto mil-spec carbine buffer tube, requires castle nut removal