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

The B5 Systems SOPMOD Stock delivers exceptional cheek weld consistency and recoil management for AR-15 and M4 platform rifles. Originally developed for US Special Operations Command, this stock features dual waterproof storage compartments and a rubber buttpad that reduces felt recoil while preventing slippage on gear and body armor. The six-position adjustable design allows shooters to quickly adapt length of pull for different shooting positions, optics, and load-bearing equipment.

Constructed from mil-spec reinforced polymer, this stock fits any mil-spec carbine buffer tube and installs with standard castle nut and end plate. The ODG (Olive Drab Green) finish provides a durable, non-reflective surface. QD sling swivel sockets are integrated on both sides for ambidextrous sling mounting. Designed for hard use, the SOPMOD maintains zero wobble on the buffer tube even after extended field use.

• Type: Adjustable buttstock
• Compatible Firearms: AR-15, M4, and mil-spec carbine buffer tubes
• Material: Reinforced polymer
• Finish: ODG (Olive Drab Green)
• Adjustable: Yes, 6 positions
• Installation: Slides onto mil-spec buffer tube, secured with castle nut