Silencerco Threaded Barrel for S&W M&P .45 ACP 5.18 Inch Barrel .578x28 Threads Black Nitride Finish Available to order on-line. Ships in 5-14 days $220.00 MSRP Price: $182.00 Description Details Reviews Shipping info Constructed using 416R stainless steel with black Nitride finish. UPC: 816413020548Manufacturer: SilencercoModel: AC2024Caliber: 45ACPCategory: PartsOtherBarrelsStock: Ships in 5-14 business days.Unit/Measure: ea This item may be shipped directly to your home address, unless you live in a restricted state.