M&P Full .357Sig with 1/2x28 Carver Comp Threads (4.69 OAL)

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All KKM barrels are made using certified 416R gun-barrel quality stainless steel bar stock. Our barrels are then heat treated and vacuum tempered to 42 RC. All of our barrels are CNC machined to obtain superior dimensional tolerances over stock. Our advanced proprietary button rifling process allows KKM barrels to offer greater accuracy over stock barrels. Our M&P barrels come with fully supported SAAMI spec match chambers for shooting factory or reloaded ammunition as well as lead or jacketed bullets. Unless noted all barrels are drop-in fit.

Note: Carver Comp threaded barrels do not come with thread protectors and are not available for them. Putting a thread protector on can cause damage and malfunctions.

Optional Finish:

Matte: A standard grey/silver finish on the chamber side and a bright polish on the round barrel towards the muzzle.

Blacknitride: A black factory coating from H&M. The QPQ finish produces a hard black coating in a slight matte finish. Please note that choosing the Blacknitride finish can add an extended lead time onto your order! Please check our current lead times page for more details.