GPR-C (GPR-CC)
.223 Rem./5.56 NATO, .223 Wylde chamber, 6.8 SPC (new 2017), .300 AAC Blackout (new 2017), or .22 Nosler (new 2017) cal., AR-15 style, 16 or 18 (new 2017) in. barrel, War Sport muzzle brake (new 2017), Geissele SSA trigger, MBUS Pro sights,...