The Truglo Head Banger Long Range Turkey choke tube multi-phase groove technology engages the shot cup and guides the pellets into a tight and consistent pattern, shot after shot. Rated for HEVISHOT, Winchester, Long Beard XR, Federal Premium 3rd Degree and other high-performance turkey loads. Heat-treated steel for increased strength and durability with powerful turkey loads. CNC machined for optimum precision and a polished end face for better seating and sealing, providing maximum power without pressure loss. Compatible gun models are Remington 870/1100/1187/887, Charles Daly pumps/semi-autos and Mossberg Pro-Factor PF3.