B5 Systems SOPMOD Stock Mil-Spec – AR-15/M4 Platform

The B5 Systems SOPMOD Stock delivers battlefield-proven adjustability and cheek weld consistency for AR-15 and M4 platforms. Its six-position design and enhanced rubber buttpad reduce felt recoil while providing stable shoulder contact across shooting positions. Two internal storage compartments keep batteries and small tools accessible without adding bulk.

Constructed from reinforced polymer with a textured grip surface, this stock fits mil-spec carbine buffer tubes and installs with standard takedown pins. The angled toe prevents snagging on gear during transitions, while multiple QD sling attachment points offer ambidextrous mounting options. NSN-listed design trusted by military and law enforcement users.

• Type: Adjustable buttstock
• Compatible Firearms: AR-15, M4, and mil-spec carbine buffer tubes
• Material: Reinforced polymer
• Finish: Black
• Adjustable: Yes (6 positions)
• Installation: Fits mil-spec buffer tube, no gunsmithing required