5.56 NATO or 6.8 SPC cal., 18 in. stainless steel barrel with threaded muzzle, M4 feed ramps, low profile steel gas block, forged receivers, 15 in. black forearm, AR trigger, 6-position carbine stock with recoil pad, A2 pistol grip, flip-up rear sights, Gas Buster charging handle with military latch, 7 1/2 lbs. Mfg. 2014-2017.
5.56 NATO or 6.8 SPC cal., 16 in. Douglas stainless steel or 16 in. Bergara chrome moly barrel, threaded muzzle, M4 feed ramps, flip-up front and rear sights, AR trigger, intermediate round forearm with natural finish, intermediate length top rail, 6-position carbine stock with recoil pad, A2 pistol grip, Gas Buster charging handle w/military latch, black finish, 7.9 lbs. Mfg. 2014-2017.
5.56 NATO or 6.8 SPC (disc.) cal., 16 in. stainless steel Douglas or Bergara barrel with black finish, MSTN straight brake, B5 Bravo stock, A2 pistol grip, forged aluminum flat-top upper and lower receiver, low profile gas block, rifle length gas tube, M4 feed ramps, Gas Buster charging handle with big latch, Gen III rifle length carbon fiber free float forearm in black or FDE finish, Mil-Spec 6-pos. buffer tube, all black (disc. 2021), black/natural, or FDE/black Cerakote finish, 7.2 lbs. New 2014.
5.56 NATO/.223 Rem. cal., 16 in. Douglas stainless steel barrel, AE brake and collar, PRI flip-up rail mounted front sight and rear sight, B5 6-pos. stock, forged aluminum flat-top upper and lower receiver, Mil-Spec buffer and tube, Gen III rifle length carbon fiber free float forearm, Recce top rail, M4 feed ramps, low profile gas block, Gas Buster charging handle with big latch, black or FDE Cerakote finish, 8 lbs. New 2018.
5.56 NATO cal., 18 in. Douglas stainless steel 1:7 or 1:8 twist barrel, AE brake and collar, standard trigger, PRI flip-up front gas block front and rear sight, A2 or B5 6-pos. stock, forged aluminum flat-top upper and Mil-Spec forged lower receiver, M4 feed ramps, Gas Buster charging handle with big latch, Gen II rifle length carbon fiber free float forearm, full-length straight top rail, black or FDE finish, 5.2 lbs.
5.56 NATO cal., 18 in. Douglas stainless steel barrel, 1:7 twist, AE brake and collar, PRI flip-up front gas block front sight and rear sight, B5 stock, forged aluminum flat-top receiver, rifle length gas tube, Gas Buster charging handle with big latch, Gen III Delta rifle length carbon fiber free floating forearm with full-length straight top rail, Mil-Spec buffer and tube, black Cerakote finish, 8.7 lbs.
5.56 NATO cal., 18 in. Douglas stainless steel barrel, 1:7 twist, AE brake and collar, standard trigger group, PRI flip-up front gas block front sight and rear sight, A2 or B5 stock, forged aluminum flat-top upper and Mil-Spec forged lower receiver, Gas Buster charging handle with big latch, Gen III rifle length carbon fiber free float forearm, full-length top rail with PEQII removable rail section, Mil-Spec buffer and tube, black or FDE Cerakote finish, 5.2 lbs.
5.56 NATO cal., 18 in. Douglas stainless steel barrel w/M4 feed ramps, threaded muzzle brake, standard trigger, flip-up front and rear w/gas block sights, Mil-Spec A2 or B5 (new 2021) stock and buffer tube, Gen II octagonal free float M-LOK forearm, anodized aluminum flat-top upper and lower receiver, gas block w/two crossbolts, full-length SPR top rail, black, FDE, or natural finish, 9 lbs. New 2020.
5.56 NATO or 6.8 SPC cal., 18 in. Douglas stainless steel barrel, threaded muzzle, forged receivers, flip-up front and rear sights, AR trigger, black rifle length forearm, full-length SPR top rail, 6-position carbine stock with recoil pad, A2 pistol grip, Gas Buster charging handle w/military latch, 8.68 lbs. Mfg. 2014-2017.
5.56 NATO or 6.8 SPC cal., 16 in. Bergara stainless steel barrel, threaded muzzle, M4 feed ramps, forged receivers, AR trigger, 6-position carbine stock with recoil pad, A2 pistol grip, black finish, intermediate length top rail, flip-up front and rear sights, 7.9 lbs. Mfg. 2014-2017.
5.56 NATO cal., low profile gas block, rifle length gas system, 16 in. Douglas or Bergara stainless steel barrel, M4 feed ramps, standard trigger, B5 Bravo adj. stock, Gen III carbon fiber free float forearm, forged aluminum flat-top receiver, standard forearm rails, Gas Buster charging handle w/big latch and MSTN straight brake, black, black/natural (disc. 2021), Delta Black (disc. 2021), FDE, or FDE/black (disc. 2021) finish, 5.2 lbs. New 2020.
5.56 NATO or 6.8 SPC cal., 16 in. Douglas or Bergara stainless steel barrel, threaded muzzle, MSTN brake, flip-up front and rear sights, B5 Bravo SOPMOD or 6-pos. carbine stock with recoil pad, A2 pistol grip, M4 feed ramps, forged flat-top upper and lower receivers, mid-length gas tube, Gen III rifle length carbon fiber free float round forearm and Recce length top rail, Gas Buster charging handle with military latch, black/FDE finish, 7.9 lbs. Mfg. 2014-2020.