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RSR Stock #: HM12-5MBUP-556
Manufacturer Part #: 12-5MBUP-556
UPC: 854164007203

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HM Defense, 12-5MBUP-556, Upper, Fits AR-15, 223REM/556NATO, 12.5" MONOBLOC Barrel, Midlength Gas System with Integral Gas Block, 1:8 Twist, Muzzle Brake, Black Color, Anodized Finish, 10 3/8" Free Float Rail with M-LOK

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  • Patented HM MONOBLOC Barrel with integrally machined Gas Block
  • Free-float rail with Picatinny and M-Lok
  • Patented HMB Bolt which replaces cam pin hole with cam pin socket and tapered cam pin

Product Description

HM Defense's mission is to advance AR15 / AR10 rifle technology to its highest level. They strive to create rifles that are more accurate, easier to maintain and dependable in extreme conditions.

Specifications