Barrels

Heckler and Koch (HK USA)

Heckler & Koch HK USA Mark 23 Thread Cap - Barrel Accessory for Enhanced Compatibility

FN

FN Hammer-Forged Barrel for AR-15 5.56mm, 16-Inch Mid-Length

Springfield Armory

Springfield Armory XDM 45 ACP 4.5-Inch Threaded Barrel for XD-M Elite

Christensen Arms

Christensen Arms Carbon Fiber Barrel for Remington 700 in 450 Bushmaster – 20 Inch Stainless Steel

Tapco

Tapco Threaded Barrel for Beretta 92 - 9mm, Black Nitride Finish, 1/2x28 Thread Pattern