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Owner/Instructor at Semper Paratus Arms
Facebook: https://www.facebook.com/SemperParatusArms/
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Master Armorer/R&D at SIONICS Weapon Systems- http://sionicsweaponsystems.com
Just get a heavier hammer like a m16 hammer. Hk did that with their MR556. And get a heavier bolt carrier to increase reliability.
"Guns are tools; people are the real weapons!"
- Anonymous
"The world is a dangerous place to live; not because of the people who are evil, but because of the people who don't do anything about it."
- Albert Einstein
An armed society is a polite society.
- Robert Heinlein
Owner/Instructor at Semper Paratus Arms
Facebook: https://www.facebook.com/SemperParatusArms/
Semper Paratus Arms AR15 Armorer Course http://www.semperparatusarms.com/cou...-registration/
M4C Misc. Training and Course Announcements- http://www.m4carbine.net/forumdisplay.php?f=141
Master Armorer/R&D at SIONICS Weapon Systems- http://sionicsweaponsystems.com
Op,
Just some food for thought on your next build. If you run into issues on your next build, replace one part at a time until you get the appropriate results. I know you *Fixed* the issue on your build, but you never really figured out the problem part. ( I would also agree that it was most likely the action spring)
If I read correctly, you replaced the receiver extension, action spring, and buffer with new parts. Swapping one by one would have told you the problem part most likely. Just something to consider for the future.
Life's a risk, enjoy the adventure - HOPLOETHOS
I understand how springs fatigue. My first though was someone yanking the the buffer spring out and it catching on the hammer casing it to get stretched( not that plausible, BUT who knows as buffer spring would have to be pretty far out if spec to cause that much bolt bounce) . Also, given how many bubba AR's I have seen built (not talking about the OP, just in general) it wouldn't surprise me at all to see someone stretch a carbine spring to "fit" a rifle tube :-/
Thanks for the advice. I would have done it one part at a time but the spring, castle nut and receiver extension came in an ATI kit. The castle nut and receiver were not mil spec. The castle nut didn't have staking notches and the receiver extension threads wouldn't allow the buttstock to fully collapse. It was the only thing I could find at the time. They were also the only unknown parts that I have used. I figured that the BCM H2 buffer wasn't the issue and the ST2 buffer came as a kit. So I just swapped the whole thing. I have always used the top brand components and the one time that I didn't I got burned. Best way to learn is the hard way.
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