Robinson Armament Co . Robinson Armament Co . is a firearms manufacturer founded in 1996 which is based Salt Lake City , Utah , USA . It produces and markets many different civilian and military oriented designs in the United States . Some of Robinson Armament ' s better known products include the Stoner 63 derived M96 Carbine , and the Kalashnikov based Vepr series of weapons which are imported from Russia . The XCR Modular Weapon System has proven to be their most popular , internally designed carbine thus far . It has sold considerably well among civilians , and has enjoyed some success with foreign military units . SOCOM SPR - V Trials . In recent years Robinson Armament has shifted focus toward military small arms development . Their RAV02 MC Carbine defeated entries from Knight ' s Armament Company and Lewis Machine and Tool in the SOCOM SPR - V trials . The RAV02 MC ( Pronounced " RAVE " ) can be chambered in 5 . 56 NATO ; 7 . 62x39mm ; and 5 . 45x39mm . It was developed and tested to current military specifications . Soldiers who have shot it preferred it over the M4 Carbine derived products . Even using the 7 . 62x39mm round , it is as accurate as an M4A1 carbine and can digest steel or brass cased ammunition fed through Kalashnikov type magazines and drums . The Rifle Features the S . I . R . ( Swan Integrated Rail System ) which give the rifle Accessory Rails ( Picatinny Rails ) at the 3 , 6 , 9 , and 12 O ' clock positions . Reliability is advertised as being superior the M4 Carbine . This was followed by the advanced XCR Modular Weapon System which was a competitor in the U . S . Special Operations Command ( SOCOM ) SOF Combat Assault Rifle trials . M96 . The M96 is based on the Stoner 63 Weapon System designed by Eugene Stoner and used by the U . S Navy Seals in Vietnam . The Stoner 63 ' s receiver , using a variety of modular components , could be configured as a rifle , carbine , a top fed light machine gun , a belt fed squad automatic weapon , or a vehicle mounted weapon . The M96 has been designed with similar modularity in mind but has been simplified for easier maintenance . The M96 is no longer produced by Robinson Armament XCR . The Robinson Armament XCR is a multi - caliber , gas piston weapon system developed by Robinson Armament Co . for U . S . Special Operations Command ( SOCOM ) to satisfy the requirements of the SOF Combat Assault Rifle [ 1 ] , or SCAR competition , but was disqualified on a technicality due to late delivery of blank firing adapters . Robinson Armament continued development and the XCR is now being offered to law enforcement , the military and general public . Deliveries of the rifle began in mid - 2006 . Future products . Robinson Armament is expanding the XCR family of weapons with a model chambered in 7 . 62x51 NATO . Little is known about this project at this time . On March 8 , 2008 Alex Robinson revealed a mock - up with the designation XCR - M . About the XCR - M , Alex Robinson said , " This will be our full focus after Mar . 15 . We ' ll post images soon . Just to mess with your minds , I ' m going to post some pictures of our original design with the G3 magazine . The rifle will change quite a bit , but it ' s something to get your juices going on . " It has since been revealed the XCR - M will use SR25 magazines Logo . The words in the Robinson Armament Co . logo " Aut Pax Aut Bellum " come from the Scottish Robinson coat of arms . They are Latin and are translated as , " Either Peace or War " . Robinson Armament decided to use them in their logo because arms of all types may be used for either peace or war . Both the Motto and Crest , " Aut Pax Aut Bellum " and a Sword held in an upraised hand are of the Clan Gunn , of which Robinson is a sept . The Robinson family motto is " Foi est tout . "