Midwest Industries MIARMSF: Heavy-duty side-folding mechanism constructed from 4140 heat treated steel, full-length locking lug for maximum strength. Solid positive lock up in both positions, steel clamp with large surface engagement. Features 5 QD sling attachments. Stock is made from Hard Coat Anodized 6061 Aluminum. Adds 9 1/8 to overall firearm length, adds 0.75 to the length of the firearm in the folded position. Complete assembly weight: 14.2 oz. Steel parts are mag phosphate finished. Velcro strap included but not shown on photos