.300 AAC Blackout cal., pistol length gas system w/low profile gas block, 10 1/2 in. barrel, 10 shot mag. with HIVIZ follower, forged aluminum receivers, M4 feed ramps, pistol buffer tube (for use with or without SIG Sauer SB15 pistol brace), Mil-Std 1913 top rail, five slot M-LOK (ARP300M) or 9 in. KeyMod (ARP300K) rail section, hardcoat black anodized finish. Disc. 2019.
5.56 NATO cal., carbine length gas system w/low profile gas block, 10 1/2 in. barrel, 10 shot mag., forged aluminum receivers, AR pistol buffer tube (works with or without SIG SB15 pistol brace), Mil-Std top rail, five slot KeyMod (ARP223K) or M-LOK (ARP223M) free float handguard, Type III Class 2 hardcoat anodized black finish. Disc. 2019.
5.56 NATO cal., GIO, mid-length gas system, 16 in. CHF medium contour barrel, 30 shot mag., forged aluminum receiver, integrated trigger guard, BCM Gunfighter stock and pistol grip, ambi BAD safety, low profile gas block, M4 feed ramps, Type III hardcoat anodized black or FDE finish.
.223 Wylde chamber, GIO, similar to MI 16 in. Lightweight Rifle, except has rifle length gas system, 18 in. lightweight profile Criterion barrel, 15 in. CRM Combat Series M-LOK handguard, 6 lbs. 8 oz. New 2021.
.308 Win. cal., GIO, similar to MI .308 Rifle, except has 16 in. Nitride finish barrel, A2 flash hider, B5 Bravo stock, 12.62 in. Combat Series M-LOK handguard, black anodized finish, 8 lbs. 3 oz. New 2022.