Quote:
Originally Posted by Qlong
The UBR's receiver extension has a smaller different inner diameter than the stock WE, this will cause the top end of the bolt carrier to rub against the wall.
What brand of UBR was this?
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Yup Qlong you're right the new buffer tube is slightly tighter causing the buffer to get stuck appx 1 inch from the complete forward position... The bolt carrier however seems to move freely. It is a UBR clone from Huang, Element i think. I am going to try to sand down the buffer head and then grease it. I think its only a matter of a mm or so.
@onemenace why would stretching the spring increase fps?
Thanks guys