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Posted: 5/23/2005 12:53:31 PM EST
[Last Edit: 5/23/2005 12:53:57 PM EST by WSAR15]
I have a custom barreled upper with an Armalite Fiberglass Free Float Hand Guard.
I am having difficulties mounting the completed upper onto a lower because the threading ring is too close to the lower reciever (front pivot pin). Any thought how to solve this? Does it come from the barrel extension being short?
Link Posted: 5/23/2005 2:36:34 PM EST
It very likely has nothing to do with the barrel extension and everything to do with how the FF tube was installed. Not being familiar with the system or having pics, I can't be of much more help than that, but I'm 99.99% sure it has nothing to do with the barrel extension. But, who knows.
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