Introduced 2018. 7.62mm NATO chambering. Second evolution of the rifles include ambidextrous bolt release, selector, and magazine release, drop-in 2-stage trigger, 7.62 QDC flash suppressor. Variations with M-LOK handguards include Combat Carbine (CC) 31893 (16" lightweight chrome-lined barrel, 8.4 lbs.), Precision Carbine 31955 (16" medium profile barrel, 5R cut, 1:10 twist, 9 lbs.), E2 SBR DSR 31958 (14.5" 5R barrel 1:10 twist, 9 lbs.), Precision Rifle No. 31961 (20" 5R barrel 1:10 twist, 10.5 lbs.), and others. KeyMod models also available (Nos. 31243, 31184, 31198).