Lead and Steel LS300-14.5 AR-15 barrel manufactured from 4150 Chrome Moly Vanadium steel and finished with a QPQ Black Nitride finish. 14.5 inch government-profile barrel for AR-15, chambered in .300 Blackout. 1:7 twist. Non-threaded. Weight approx 1.0 lb. Mfg Part LS300-14.5. SKU ACC-LEADS-LS300145. UPC 7427053012454. Not available to ship to California, Illinois, or Washington.