Another great product from YHM and CTD. I put this on my DPMS AP4 and I see nothing bad about it. It looks good and is tight on the gun, It's almost as if this was made just for it.

I bought these to replace the tapco handguards on my High Standard HSA-15, very tight, finish matches the gun well, and it looks cool. Seems to be very solid built.

I didn't buy this straight from CTD, but I do have this exact free-float YHM quad rail installed on my DPMS AP4 carbine. It is rock solid, and to the reviewer Corbin (two comments down), just drop $10 on some rail covers and another $15 on a polymer vertical grip - it's that easy. Quad rails are made to be covered with accessories, not held directly. Shame on you for giving this product only 4 bullets for such a silly complaint. Great buy - highly recommended!!

Just got mine in and put it on my DPMS AP4 its a perfect fit. It is solid as a rock.

Great product, Highly recommend.

Great system to have for an AR-15, it installs easily enough and has a firm hold, the only problem is that it is a little uncomfortable if you are holding for a long time

Handguard installs in minutes and is rock solid on my DPMS Upper Receiver. Well worth the money!