B5 Systems Modular Picatinny Stock – AR-15/M4 Compatible

The B5 Systems Modular Picatinny Stock delivers enhanced cheek weld stability and accessory mounting flexibility for AR-15 and M4 platforms. Featuring an integrated Picatinny rail section on the side of the stock, this design allows shooters to mount lights, lasers, or other accessories directly to the buttstock without interfering with primary optics or forend space. The improved cheek weld geometry supports consistent eye alignment with optics while maintaining full adjustability across carbine-length buffer tube positions.

Constructed from reinforced polymer with a textured overmolded rubber recoil pad, the Modular Picatinny Stock installs on mil-spec carbine buffer tubes using a standard locking lever mechanism. The coyote brown finish matches common field gear and tactical setups. Six position adjustment provides length-of-pull options from 10.5 to 14 inches to accommodate different shooting positions, body armor, or seasonal clothing layers.

• Type: Adjustable buttstock with Picatinny rail
• Compatible Firearms: AR-15, M4, mil-spec carbine buffer tubes
• Material: Reinforced polymer with rubber recoil pad
• Finish: Coyote brown
• Adjustable: Yes, 6-position
• Installation: Mil-spec carbine buffer tube, standard locking lever