Loose handguard, need some help [Archive] - Glock Talk


View Full Version : Loose handguard, need some help

10-20-2011, 16:38
Black rifle guys, I just bought a CMMG M4 LE upper and the handguard has about a 1/8 inch wiggle left/right. Is this normal? If not are there ways to go about fixing it?


10-20-2011, 16:43
I believe in the manual I was issued for my M4 carbine it says that more than 1/16" movement is not to be tolerated. Is your A Frame loose? Or your delta ring loose? Does it move your gas tube? If none of these move then it won't affect function, it will just be annoying.

10-20-2011, 18:31
That's pretty normal for aftermarket. Make sure it's the HG's wiggling and not the FSB or delta ring. Then use a thin bead of high temp RTV to tighten it up. Just a little, you want to fill the gap so it doesn't wiggle, not glue it in place forever.

Or get some Magpuls. they're pretty solid.