The Daniel Defense Lite Rail is a lightweight, free-floating quad Picatinny railed handguard. It offers a continuous top rail that aligns with the flat-top to provice a continuous length of rail for alignment of optics. Four rails offer great versatility in placement of accessories such as lasers, flashlights and fore-grips. The DD Lite Rail is machined from 6061 T-6 aluminum and Type III hard anodized. The rail slots are alphanumerically marked to enable accessories to be returned to the same slot when removed for repeat zero. The exclusive Bolt-up system is the same as that used on the Daniel Defence RIS II adopted by United States Special Forces Command for its SOPMOD II program. This replaces the barrel nut and locks the hand guard in place absolutely rigidly with phosphated steel screws. The nut is secured with the Lite Rail Barrel Nut Wrench (available separately). Each hand guard comes complete with a forend, barrel nut, forend attachment base, (6) attachment screws, (3) ladder rail covers, thread locking compound, and instructions. Installation requires removal of barrel and front sight housing. Installation of all models requires use of proprietarybarrel nut wrench which is available separately.

Daniel Defense Lite Rail 4.0 for pistols
DD Lite Rail 4.0 – For use on a 7.5″ barrel with an Adams Arms or Spikes Tactical pistol-length gas piston system. 4″ (10cm) length, 7 oz. (198g) wt.
DD Lite Rail 7.0 – Fits carbine-length gas systems; perfect for short barreled rifles. 7.25″ (18.4cm) length, 9 oz. (255g) wt.

Daniel Defense Lite Rail 9.0 for carbines with mid length gas systems
DD Lite Rail 9.0 – Ideal for rifles with mid-length gas systems where size and weight are mission-critical attributes. 9″ (22cm) length, 11 oz. (262g) wt.
DD Lite Rail 9.5 FSP –Provides extra rail space along sides and bottom with a cut in the top rail for the front sight post and gas block to fit a rifle with a carbine-length gas system. 9.5″ (24cm) length, 9.1 oz. (258g) wt.
DD Lite Rail 10.0 – Works with a low-profile gas block on either a carbine or mid-length gas system. Installation of all models. 10″ (25cm) length, 11 oz. (287g) wt.
DD Lite Rail 12.0 – For users who require a light and rugged rifle and desire a tactical upgrade with long-range capability. 12″ (30cm) long, 14 oz. (396g) wt.
DD Lite Rail 12.0 FSP – Features a precision cut-out opening in the top rail to accommodate the front sight post and gas block of a carbine with carbine lenght gas system. It provides a rifle length quad rail. 12″ (30cm) long, 14 oz. (396g) wt.
DD Lite Rail 12.0 FSPM – Provides an opening in the top rail for the front sight post and gas block of a mid-length AR15 with mid length gas system. It provides a rifle length quad rail. 12″ (30cm) long, 14 oz. (396g) wt.
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You may find this video on the Brownells AR15 combination wrench interesting.
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