CMMG Upper Group, Mk9LE OR, 9mm

The Mk4LE Optics Ready Upper Group is set up for your favorite scope or red dot sight as it has no front sight base to interfere with the sight picture. The Mk4LE OR upper group comes with CMMG’s lifetime quality guarantee.

Features and Specifications:
Manufacturer Number: 90B1A8E
Caliber: 9mm
Barrel: 16.1", 1:10 twist, M4 profile, 4140CM, SBN
Muzzle: A2 comp., threaded 1/2-36
Hand Guard: M4 type 2 piece hand guards
Receivers: Forged 7075-T6 AL M4 type