Description1973 Colt AR15 SP1.jpg English: 1973 Colt AR-15 SP1 Sporter rifle Date 14 September 2009, 00:31 (UTC) Source Own work Author Steelerdon (talk)...
org/licenses/by/3.0CC BY 3.0 Creative Commons Attribution 3.0 truetrue English 1973 Colt AR15 SP1 model rifle rotated determination method or standard: SHA-1...