***THIS IS A PRE-ORDER; LEAD TIMES APPLY.***

For the M&P barrels, be sure to check the length of your stock barrel before ordering. Quite often orders are placed for the wrong length, creating the avoidable frustration.

MAJORITY OF M&P BARRELS ARE DROP-IN FIT.  If you have an older 1.0, it is possible your barrel may need light fitting. Contact us in an email if you have questions about your specific gun/barrel.

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.

Note: Comes with a thread protector.

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

KKM Precision, 4.96" .40 S&W to 9mm Full Size Barrel, 1/2×28 Sprsr Threads (1.0 and 2.0 Compatible), Matte Finish, Fits M&P 40 Full Size 4.25" Pistol

  • Brand: KKM Precision
  • Product Code: KKM-MPDB1T1
  • Availability: In Stock
  • $273.99 USD