The Daniel Defense 12.0 FSP Free Float Rail System features an opening in the top rail to accommodate the front sight post and gas block of a carbine length AR15 gas system. This precision cut-out provides much needed rail space along the top, sides, and bottom rails of the 12.0 FSP. The rifle’s front sight post protrudes through this opening but does not diminish the useable mounting area on the rail that extends beyond the gas block and over the carbine’s barrel.

This extra “real-estate” is a perfect location for aiming devices, flashlights, and laser sights.

The 12.0 FSP handguard is designed to work with the AR15 carbine gas system. The indexing pins are constructed from stainless steel while all other components are 6061-T6 aluminum. Every Daniel Defense Rail System is a Military Specification rail and are 100% Quality Assurance Tested for conformity.

Every DD rail comes with either ladders or panels are made from santoprene, which can handle heat up to 350.

Specifications and Features:
Free float.
Light weight and strong.
Able to quickly dissipate heat.
Feels like a conventional forearm (Oval not round).
Locks to barrel nut to prevent spin.
Precision CNC machined from 6061 T6 aluminum and Military Specification Type III Hard Coat Anodized.
Material: Aircraft Grade 6061-T6 Aluminum
Finish: Military Specification Type III Hard Coat Anodized
Length: 12.5"
Width: 1.94"
Weight 13.1 Ounces
Inside Diameter: 1.45"
Made in the USA!