Maxim Defense CQB Gen 7 Collapsible Stock for AR-15 is a 4-position adjustable buttstock designed for MILSPEC AR-15 lowers, compatible with all AR-15 platforms. Housing is machined from 7075 aluminum with a MILSPEC Flat Dark Earth anodized finish. Features one-handed pull-to-deploy operation (no buttons), knurled collapse lever, extended cheek weld, textured butt plate, and a sleeker profile with a built-in ambidextrous QD sling mount. Adds 5.3 to firearm length when collapsed, 10 when fully extended. Weighs 18.5 oz. Includes standard buffer and buffer tube. Keep your existing MILSPEC bolt carrier group. Do not modify BCG for compatibility. Safety note Follow all manufacturer installation instructions. Verify proper function and secure mounting before use. Comply with local firearm laws and regulations.