XTS AR-15 M-Lok Rail 7 in OD Green. This XTS AR-15 M-LOK Rail features a barrel nut and two t-marks for easy barrel-clamp free mounting. Whether you want to customize your gun or simply want more accessories the XTS AR-15 M-LOK Rail allows for both. Barrel nut and two t-marks for easy barrel-clamp free mounting. Top rail has cut-outs for a monopod front rail has cut-outs for sights front rail has a built-in recoil lug at the rear of the rail. No barrel nut or t-mark necessary. The XTS AR-15 M-LOK Rail features three full-length M-LOK locking accessory rails at the front top and back. With this much modularity accessories can be mounted in any direction. The machined aluminum heat shields protect the rail from any accidental damage without sacrificing strength or weight. Firearm not included. Specifications for XTS AR-15 M-LOK Rail: Manufacturer: XTS Finish: Anodized Fabric/Material: Lightweight Aircraft Aluminum T6061 Gun Rail: Picatinny Hand: Ambidextrous Gun Type: Rifle Handguard Type: Free-Float Handguard Style: Hybrid Rail Gun Model: AR-15 Additional Features: QD Sling Mounts Included Accessories: Standard Quantity: 1 Mount Type: M-LOK Package Contents: XTS AR-15 M-LOK Rail Barrel nut Allen key XTS XTS-ADZ07-OD: AR-15 M-Lok Rail 7 in OD Green