OK guys, this is my first post so I want to say thanks for all the awesome knowledge I've gained from reading the posts on this forum. Now here's my problem:
I've got a Colt 20" HBAR that I decided to upgrade a bit. I put a DD flat top upper on it, vltor collapsable, and a JP FF rifle length tube... now it's short stroking. I can see it's leaking gas where the gas tube fits into the front sight post and a little can be seen between the barrel nut and receiver. I've ordered a new gas tube hoping it will fit tighter into the FSB and I'm wondering if this will be enought to get it back to it's former Colt self. A buddy thinks it could be a lockup timing issue, I think it's gas related but could also be complicated by the fact that I know have a carbine buffer and spring on a rifle. I need your thoughts, this was a perfectly functioning rifle before I screwed with it. The barrel and BCG are still original.
P.S. On the bright side, due to the fact that I couldn't be without a perfectly functioning AR, I went out and bought a LMT M4 and it runs like a champ.
Thanks in advance,
J.T.
Semper Fi


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