Matrix SPR DMR Quad Handguard Set for M4 Series Airsoft AEG (Model: Mod-1)

"Great kit, worth the money and all the parts are full metal but if you are in the good ol' USA, the flash hider is bright freakin' orange. The rails are solid and despite the lack of instructions are easy to figure out. Of course, I'm in school for Mechanical Engineering but if you can take your old rails off, you can get these ones on, besides, the parts only work one way. It is fairly light, but with all the attachments you will add it can get heavier than a real steel AR-15, loaded. It perfectly covers a 509mm barrel but it will show in the flash hider's ports, so I recommend something 1 1/2 to 2 inches (40 to 50 mm) shorter. Overall great set and for the price, very impressive.

"Got this for my We-Tech M4. Fits great after walking the barrel nut (real steel threads vs AEG). Didn't use the barrel though obviously, although I could have modified the barrel I suppose. Anyways It's sturdy and heavy, both a plus and a negative.