KAK OE-SPEC- .45 ACP 4.0" AR15 Barrel- Nitride

VALUE-LINE .45 ACP 4.0" AR15 Barrel- Nitride* Chamber- 45 ACP* Length- 4.0" (3.5" When compared to a standard AR15 barrel for handguard measurements)* Threads- .578x28* Finish- Melonite* Twist- 1:16* Material- 41V50 Chrome Moly Vanadium* Marked for Caliber and Twist* Weight- 8.8 OZ* Fully Made In House From KAK Industry Produced BlanksTaper profile All Barrels Are Air Gauge Inspected for Correct Bore Size & Tolerances, completed Barrels are Inspected for Proper Headspace using Calibrated Gauging.