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.
- 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