Product Description. The 12.5' free float quad handguard rail features a one piece design and will mount over low profile gas blocks. Made of black anodized aircraft grade aluminum and compatible with most direct impingement gas systems. The T-marked rails allow accessories to be removed and replaced with ease and continuous top rail provides a monolithic look with standard flat-top receivers. AR-15 LCH5 HANDGUARD CARBON FIBER FREE FLOAT. (In Stock) Click here for price! $179.99 - $269.99. 3.5 (2) AR-15 LCH5 HANDGUARD CARBON FIBER FREE FLOAT FULL TOP RAIL.
You may think to yourself, “Hey, this rail is made by Aim Sports and cost like $50. It’s gotta be pretty crappy.” And that is where you would be wrong! After a highly advanced and thorough scientific analyze, I have confirmed that this AR-15 handguard is, in fact, not pretty crappy.
The following video features AIM Sports Inc.Quad Rails. Free Float & 2 Piece Drop In. Visit for our complete product line and inf.
This handguard/rail is available in three lengths: 10″, 13.5″, and 15″. You can get them in either a KeyMod or M-LOK version. I got the 15″ M-LOK version so that is the one I will focus on for this review. This handguard has M-LOK sections on 7 sides with a full length picatinny rail on top. The top rail has grooves and slots milled in it in order to decrease weight. This non-standard geometry may not sit well with some because it means the rail with not look continuous. That doesn’t bother me, though. Speaking of the weight, it tips the scale at 12.9oz with all the included components. The rail itself is made of 6061 aluminum and the barrel nut is made of steel.
As far as the installation is concerned, it is pretty easy. You don’t have to time the barrel nut so you don’t need to mess with barrel nut shims and being how the barrel nut is made of steel, you just need to tighten it to between 35 – 80 ft·lbs. Hell, I don’t even use a torque wrench most of the time unless I’m working with an aluminum barrel nut because they apparently can’t handle as much torque. Anyways, after you tighten down the barrel nut, you just slide the handguard into its position, then insert the two included steel nuts into the left side of the handguard, and then you drive in your two steel screws from the right side. Along with the pressure from the screws, the handguard it also kept in place with the help of two anti-rotation tabs that interface with the upper receiver.
Lastly, I’ll tell you about the quality of this item. I gotta say, the quality isn’t too bad for the price. I can’t really even complain about it. I guess the anodization is a little coarse but that is all I got for criticisms. The quality of the machining is good. Everything is geometrically correct. The fitment between all the parts is tight. The anti-rotation tabs fitted my upper receiver perfectly (made by Brass Aluminum Forging Enterprises and then sold by Aim Sports) and the handguard is tight with the barrel nut. Also, the picatinny rail on the handguard is right in line with the rail on my upper. This means that they are basically the same height.
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Aim Sports Ak Handguard
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