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Mako IDF Aluminum Extended Rail System for Carbine Length Gas Systems for M4/AR-15

Features:

- Slim-profile, compact rail system with extended rail to allow mounting of optics and accessories.
- The NFR-EX rail system firmly locks to the barrel nut so mounted optics retain zero.
- Drop-in installation.
- CNC machined hardcoated black anodized aviation-grade 6061 T6 aluminum.

Specifications:

- Length: 12.50
- Width: 2.17
- Height: 2.36
- Weight: 15.60 oz
- Finish: Black