SPECS: Forend - 6061 T6 aluminum, Type 3 hardcoat anodized, black. Barrel Nut- steel, Parkerized, gray. 12.0, 12.0 FSP & 12.0 FSPM – 12" (30cm) long, 14 oz. (396g) wt. 10.0 – 10" (25cm) length, 11 oz. (287g) wt. 9.5 FSP – 9.5" (24cm) length, 9.1 oz. (258g) wt. 9.0 – 9" (22cm) length, 11 oz. (262g) wt. 7.0 – 7.25" (18.4cm) length, 9 oz. (255g) wt. 4.0 – 4" (10cm) length, 7 oz. (198g) wt. Each kit includes forend, barrel nut, forend attachment base, (6) attachment screws, (3) ladder rail covers, thread locking compound, and instructions. Installation requires removal of barrel and front sight housing.