Fab Def Ar15 Stock Compart Blk

The F.A.B. Defense AR-15 Stock Compartment in Black is a dual-tube compatible buttstock engineered for operators who demand modularity without compromise. This GLR-16 platform accepts both Mil-Spec and commercial-diameter buffer tubes, eliminating compatibility concerns when swapping uppers or configuring multiple rifles. The integrated rubber butt pad delivers consistent shoulder positioning under recoil, critical for maintaining sight picture across repeated fire cycles during qualification, training, or duty use.

Sling versatility is built in: three integrated QD-compatible attachment points—one forward, two rearward—allow rapid sling configuration changes without tools. The two ambidextrous quick-detach sling swivel sockets accommodate standard QD mounts, enabling single-point or two-point setups depending on mission profile. A water-resistant battery storage compartment holds two CR-123A or AA batteries, solving the field problem of carrying spares for optics, lights, or thermals without adding external pouch weight. Weighing 0.75 lbs, the stock adds minimal mass to the receiver end.

This stock suits patrol rifles, precision platforms, training carbines, and reconfigurable systems where users regularly change tube diameters or need compact accessory storage. Law enforcement, military, and civilian shooters standardizing on AR-15 platforms benefit from the dual-tube design when sharing lowers across duty and training inventories. The black anodized finish resists corrosion in field conditions and blends with standard tactical configurations.

AR-15 stocks are core to rifle ergonomics; buffer tube compatibility directly affects rifle modularity. The GLR-16's acceptance of both tube standards makes it a practical choice for operators managing multiple builds or transitioning between platforms without stock replacement.