10-06-2011, 07:21 PM
You can also use a Tubbs flat wire extra power recoil spring. I have had nothing but good results with adjustable gas blocks on AR10's...Namely the JP Steel blocks. Don't go with aluminum...they gall and expand faster, causing gas leakage when the gun heats and cools.
I've heard of other people having leak issues with the MGI adjustable tubes, but haven't played with them myself.
I've heard of other people having leak issues with the MGI adjustable tubes, but haven't played with them myself.