The free-floating, heavy, chrome moly barrels (chrome moly barrels resist throat erosion better offering a longer accuracy life than stainless steel barrels) for the available cartridge chamberings all have a different length, groove cutting and rifling twist rate optimised for their respective chambering and intended ammunition. The .260 Remington, .308 Winchester, .300 Winchester Magnum and .338 Lapua Magnum chamberings are available with barrels of common length for sniper rifles and relatively short long barrels. On special order TRG sniper rifles can also be supplied with stainless steel barrels. Two types of flash eliminator/muzzle brakes are available as an accessory with one being threaded to accommodate a sound-suppressor.