FAB Defense GL-Core S Buttstock is a matte black fiberglass reinforced polymer CQB-optimized combat buttstock for AR-15/M4 platforms, fitting Mil-Spec or Commercial buffer tube diameters via included interchangeable buffer tube adapters. Designed for an Israeli Counter-Terrorism unit, it's short and compact for CQB scenarios while providing strength for mid-range engagements. Features an integrated cheek weld, flat-faced rubberized buttpad usable with or without body armor, two integrated QD rear sling swivel connectors, and an inverted positioning lever to prevent accidental opening. No protruding parts to snag on gear. OAL 6.49, height 4.29, width 2. Weighs 7.40 oz. Safety note Follow all manufacturer installation instructions. Verify proper function and secure mounting before use. Comply with local firearm laws and regulations.