Noveske BARREL 6MM ARC 18 SPR STAINLESS .750 LO-PRO GAS BLOCK RIFLE LENGTH GAS TUBE HEADSPACED BOLT WITH PACKAGING. 750 LO-PRO GAS BLOCK RIFLE LENGTH GAS TUBE HEADSPACED BOLT WITH PACKAGING Specifications for Noveske BARREL 6MM ARC 18 SPR STAINLESS .750 LO-PRO GAS BLOCK RIFLE LENGTH GAS TUBE HEADSPACED BOLT WITH PACKAGING: Manufacturer: Noveske Color: Silver Caliber: 6mm ARC Barrel Length: 18 in Gas System Length: Rifle 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 18 SPR STAINLESS .750 LO-PRO GAS BLOCK RIFLE LENGTH GAS TUBE HEADSPACED BOLT WITH PACKAGING What firearm models does the manufacturer say Noveske BARREL 6MM ARC 18 SPR STAINLESS .750 LO-PRO GAS BLOCK RIFLE LENGTH GAS TUBE HEADSPACED BOLT WITH PACKAGING is compatible with? The manufacturer says that Noveske BARREL 6MM ARC 18 SPR STAINLESS .750 LO-PRO GAS BLOCK RIFLE LENGTH GAS TUBE HEADSPACED BOLT WITH PACKAGING is compatible with AR-15Noveske BARREL 6MM ARC 18 SPR STAINLESS .750 LO-PRO GAS BLOCK RIFLE LENGTH GAS TUBE HEADSPACED BOLT WITH PACKAGING