The quad rail was not perfect but it was the best available option at a time of great transition and change in the world of firearms. While no one will deny the positive features that the quad rail offered over the standard round two piece AR15 hand guards they replaced, many will argue it was a waypoint in a progression towards a better overall design that was waiting to replace it. Larue, Daniel Defense, Yankee Hill and Machine, Knights Armament and Midwest Industries all fought for rail supremacy and military contracts. It seemed like every week a new manufacturer was coming out with a new length rail system or a new fastening system to make their quad rail unique and different. In the not so recent past the rise of quad rail systems was stunning to see. For mutiple color cerakote please call for correct pricing.Is the quad rail obsolete? The answer to that question is a resounding YES. Please put cerakote color in comment box at checkout. NOTE: Compatible with the DPMS High Tang uppers 4 quick disconnect sockets (2 on the rear and 2 on the front).1.72' internal diameter (fits all larger profile barrels with adjustable gas blocks plus 1.5' suppressors).Full Length ARCA Swiss rail on the bottom.These handguards come with a 1.72' inside diameter and will fit suppressors up to 1.5' in outside diameter. They also fit standard uppers with the addition of the barrel nut option listed on each product page. These handguards are a direct fit to the Aero Precision M4E1 and M5E1 enhanced uppers. These are perfect for the hunter who wants to make a stand in a field for coyotes or pigs using a tripod. These are compatible with the Aero M5E1 upper receivers and any DPMS High Tang upper receiver. The ARCA rail is great for locking into a tripod or being able to move your bipod to any point on the handguard without adding extra picatinny rail sections to your handguard. It has full M-Lok capabilities on both sides and the bottom but also has a full ARCA Swiss Rail on the bottom. This handguard is one of the most versatile handguards on the market.

Ar 10 10 inch quad rail