SKU: FABFX-GLCOREBBLEM
The FAB Defense AR-15/M4 Buttstock in black is a mil-spec compatible stock designed for drop-in installation on standard AR-pattern rifles and carbines. This buttstock functions as a direct replacement for factory-issue stocks on mil-spec and commercial receiver extension tubes, making it an ideal upgrade for operators seeking ergonomic control and field-proven reliability without requiring specialized tools or gunsmith work.
Built for both MIL-SPEC (1.14-inch OD) and commercial (1.17-inch OD) tube diameters, the FAB Defense stock accommodates the receiver extension already installed on most AR-15 and M4 carbine platforms. The black finish provides a professional appearance consistent with tactical configurations. The minimal weight of 0.81 lbs ensures it does not burden the rifle's overall balance or handling characteristics, critical for extended patrol operations or training scenarios where cumulative weight fatigue affects performance. This blem unit ships without original packaging but functions identically to factory-first stock.
This buttstock serves law enforcement, military, and civilian precision shooters who require a dependable cheekrest and shoulder interface for consistent sight picture and recoil management. It is particularly suited for carbine-length build-outs, recce rifles, and duty weapons where modularity and simplicity are advantages. The direct fit on existing mil-spec and commercial tubes eliminates compatibility uncertainty—a critical factor when replacing stock components in high-reliability configurations.
AR-15 and M4 buttstock upgrades represent one of the most accessible and cost-effective improvements available to the AR platform. The FAB Defense offering provides a tested alternative to factory OEM stocks while maintaining the inherent simplicity and field reliability the AR platform is known for. Buyers seeking blem or surplus inventory benefit from TacticalSurplusUSA's competitive pricing on verified functional parts.
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