CMMG basic upper, the Mk4 LE features a nitrided 16.1" 4140 CrMo steel barrel in a M4 profile. The standard configuration includes a "F" marked front sight base and M4 style hand guards.The Mk4LE Optics Ready model 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 comes with CMMG's lifetime quality guarantee.
Type: Complete Gas Impingement Caliber: 22 Long Rifle Sights: None (Optic Ready) Barrel Length: 16.0" Barrel Material: Chrome Moly Steel Barrel Description: M4 Profile Barrel Finish: Black Receiver Description: 7075-T6 Aluminum M4 Receiver Finish: Black Handguards: Synthetic Handguard Finish: Black Barrel Length Range: 16.00" to 17.99"
