LMT MRP 5.56 NATO Chrome Lined Barrel - 11.5"

Manufactured by Lewis Machine & Tool
Manufactured by Lewis Machine & Tool
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The LMT 11.5” 5.56x45 Blackout Chrome-Lined 1:7” RH Twist Barrel is a caliber-converting, quick-change barrel for their MRP CQB receivers. This MRP caliber conversion system allows for quick caliber changing between 5.56x45, .300blk, and .224 Valkyrie. The installation process is as easy as turning a couple retaining bolts with the LMT torque wrench.

LMT’s barrels are incredibly well-designed, made from the highest quality materials for incredible accuracy. The low-profile gas block is firmly attached to prevent leakage or slipping, and the straight gas tube interfaces perfectly with the MRP CQB receivers. The barrel is chrome-lined and cryogenically treated for an extended service life. This barrel comes with an A2 flash hider already installed, so it’s ready to rock at the range.

Compared to the 10.5” barrel, this 11.5” 5.56 barrel adds a bit of velocity, resulting in more reliable fragmentation of standard military ball ammunition. The cost comes with a slight increase in weight and size, but the significance is debatable. This is a fantastic barrel to choose when selecting an SBR 5.56 or 5.56 pistol MRP CQB.

Note:this barrel will not fit a full-size MRP receiver. This barrel is designed for MRP CQB receivers only.

  • 11.5” 5.56blk Barrel for LMT MRP CQB
  • 1:7” RH Twist Rate
  • Chrome-Lined
  • Cryogenically Treated
  • A2 Flash Hider Included
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Barrel CoatingManganese Phosphate
Barrel ContourGovernment
Barrel Length11.5
Barrel LiningChrome
Barrel Material41V50 Chrome Moly Vanadium Steel
BrandLewis Machine & Tool
Caliber Gauge5.56 NATO
Feed RampsM4
Gas System LengthCarbine
PlatformLMT Rifles
Thread Pattern1/2 X 28
Twist Rate1:7

WARNING: This Product can expose you to chemicals which is known to state of California to cause Cancer and Reproductive Harm. For more information, see www.p65warnings.ca.gov

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