mp5 handguard wobble
 

I have this handguard on my mp5a5 http://www.hkparts.net/shop/pc/catal...682_detail.jpg

small problem is : it wobbles a bit. I dont care when I have nothing on the rails, but if I put a vert grip, I notice it a lot.

Any way to fix this?

I have the same issue with my G&G. Since there is only the one pin (at least in my case) keeping the handguard in place the opposite end does not fit snugly and tends to slide a little each way with a vert grip attached. Hopefully there is a cure.