The Vism Tactical Rifle/Carbine Scabbard is designed to carry M4/16/AR15 with 10.3 to 20 inch barrels. The scabbard allows carry with the magazine in weapon or removed. Molle webbing allows for modular setups and attachment to packs or vests. It will work with other rifles of similar design and shape. Designed for shoulder carry or modular mounting. Webbing on both side with four detachable PALS straps for ambidextrous usage. Six D-ring locations for attaching the padded shoulder sling to for multiple carry options or preferences. Removable retention strap with quick-release buckle; Padding around the whole scabbard to protect your rifle. Expandable to three positions for various barrel lengths.