The lightweight, semi-automatic Rec7 Gen II operates on a one-piece 14-7 stainless steel piston with two position gas plug. This Barrett REC7 Gen II 6.8 SPC rifle features a 16" flyweight barrel, grey receiver, Magpul MOE stock, thread protector, ALG defense trigger, KeyMod rail attachment, Barrett handguard, and one 20 round magazine.