1:3 Scale FN HERSTALA(R) MK 13 Grenade Launcher Model + Long Barrel Fits the 1:3 scale GoatGuns FN SCAR Models. All the perks and quirks you&';ve come to love and expect from Sarge for this epic attachment piece. Diecast metal Comes with dummy grenade round Comes with extended barrel! Functional opening/closing mechanisms Weighs 3 ounces Tan/coyote color that matches GoatGuns SCAR