Upper Group, Mk4LE OR, 5.56mm

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Upper Group, Mk4LE OR, 5.56mmManufacture ID: 55BE191The 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. Specifications:- Caliber: 5.56mm- Barrel: 16 M4 profile- Muzzle: A2 comp., threaded 1/2-28- Hand Guard: M4 type 2 piece hand guards- Receiver: Forged 7075-T6 AL M4 type Show more