FAB Defense FXGLCORES GL-Core S CQB Optimized Combat Buttstock for AR-15/ M4 Black Fiberglass Reinforced Polymer Swivels The specialized clamp system allows

The specialized clamp system allows for mounting on 1913 short railed subcompact handguns including: the Smith & Wesson M&PM2

With a Quick Detachable Weaver style mount

these magazines are built to exceed your expectations

and carbon build-up

FAB Defense FXGLCORES GL-Core S CQB Optimized Combat Buttstock for AR-15/ M4 Black Fiberglass Reinforced Polymer Swivels The specialized clamp system allowsThe GL Core S was specifically designed for one of the best Israeli Counter Terrorism units, to be used as a primary buttstock. The design process started with the GL Core buttstock, and implemented all the design changes that were requested to create a buttstock that will be short and compact for CQB scenarios but will still provide strength and stability for mid range engagements.