Century Arms C308 semi-automatic rifle is built around a roller lock delayed blowback system. The 18" barrel is made of 4140 chrome moly steel, with 5/8x24 RH muzzle threads and a proprietary ... Rifles are right at home on the range, in the field, or in a defensive scenario. Choose from a variety of calibers, barrel lengths, finishes, and other options to find your next rifle. Clearview Investments Inc. 102 Fieldview Dr. Versailles, KY 40383 859 873-9877 [email protected] At Liberty Tree Collectors, we feature a wide range of collectible military firearms, parts, and accessories. We carry Mauser, Enfield, 1911, Mosin Nagant and more!