Controls Gas Flow For Positive, Reliable Cycling

Drop-in replacement for factory gas piston or “puck” can be matched to the load you’re shooting to ensure positive, reliable cycling. The self-cleaning TwisterPuc helps keep the gas tube clear for reliable chambering, extraction, and ejection. Standard - works with the broadest variety of loads for general all-around use. Made from pre-hardened, CNC-machined stainless steel that resists corrosion and wear.