Noveske BARREL 6MM ARC 12.5 CRUSADER STAINLESS .750 LO-PRO GAS BLOCK CARBINE LENGTH GAS TUBE HEADSPACED BOLT WITH PACKAGING. 5 OG STAINLESS .750 LO-PRO GAS BLOCK MID-LENGTH GAS TUBE HEADSPACED BOLT WITH PACKAGING Specifications for Noveske BARREL 6MM ARC 12.5 CRUSADER STAINLESS .750 LO-PRO GAS BLOCK CARBINE LENGTH GAS TUBE HEADSPACED BOLT WITH PACKAGING: Manufacturer: Noveske Color: Silver Caliber: 6mm ARC Barrel Length: 12.5 in Gas System Length: Carbine Length Barrel Twist Rate: 1-7 Gun Make: AR Platform Gun Model: AR-15 Additional Features: Barrel Included Accessories: Pinned Gas Block and Gas Tube Handle Color: Silver Package Contents: Noveske BARREL 6MM ARC 12.5 CRUSADER STAINLESS .750 LO-PRO GAS BLOCK CARBINE LENGTH GAS TUBE HEADSPACED BOLT WITH PACKAGING What firearm models does the manufacturer say Noveske BARREL 6MM ARC 12.5 CRUSADER STAINLESS .750 LO-PRO GAS BLOCK CARBINE LENGTH GAS TUBE HEADSPACED BOLT WITH PACKAGING is compatible with? The manufacturer suggests that Noveske BARREL 6MM ARC 12.5 CRUSADER STAINLESS .750 LO-PRO GAS BLOCK CARBINE LENGTH GAS TUBE HEADSPACED BOLT WITH PACKAGING is compatible with AR-15Noveske BARREL 6MM ARC 12.5 CRUSADER STAINLESS .750 LO-PRO GAS BLOCK CARBINE LENGTH GAS TUBE HEADSPACED BOLT WITH PACKAGING