TELESCOPING SHOTGUN STOCK MODEL: TSAM-1 The TSAM-1 is a telescoping shotgun stock made for standard frame 12 gauge Mossberg® 500® shotguns. The TSAM-1 consists of the interface, grip, five-position M4 tube, nut & mounting hardware. No sliding butt stock or sling loops are included. Tough as nails, battle tested and built for a fight. Allows for quick deployment Extremely rugged construction Utilizes proven AR components Made in the U.S.A.