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Posted: 7/17/2017 1:49:21 PM EDT
[#1]
Spring in backwards is possible problem ?
 AR15 Trigger Installation Guide Full HD (New Tactical Advantage intro) |
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Posted: 7/17/2017 2:11:26 PM EDT
[#2]
You need a lighter buffer weight. It is ejecting the round but not pushing the bolt back far enough to pick up round from magazine. I had this same problem with a 300 blackout pistol that I built. Also ammo makes a big difference. I could get my pistol to cycle with some types of ammo and then others would not work. The weight of the bullet makes a big difference. Bottom line you will have to experiment to get the right combination that works with your setup. What grain bullet are you using?
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Posted: 7/17/2017 3:09:48 PM EDT
[#3]
Quote HistoryQuoted:
You need a lighter buffer weight. It is ejecting the round but not pushing the bolt back far enough to pick up round from magazine. I had this same problem with a 300 blackout pistol that I built. Also ammo makes a big difference. I could get my pistol to cycle with some types of ammo and then others would not work. The weight of the bullet makes a big difference. Bottom line you will have to experiment to get the right combination that works with your setup. What grain bullet are you using? |
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Posted: 7/17/2017 3:56:55 PM EDT
[#4]
Well it looks like the other thread went away, but check your springs on your LPK to make sure one of them is not installed wrong.
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Posted: 7/17/2017 4:11:00 PM EDT
[#5]
Make sure your gas tube is not upside down and that your gas block is properly aligned. PSA don't put dimples on the barrel in my experience so it makes lining up the block a pain. If you fire and the bolt doesn't move or only moves a little, it's a gas issue
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Posted: 7/17/2017 5:10:40 PM EDT
[#6]
Quote HistoryQuoted:
Well it looks like the other thread went away, but check your springs on your LPK to make sure one of them is not installed wrong. |
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Posted: 7/18/2017 9:55:06 AM EDT
[#7]
Broke down the lower and re-install the fire control group and safety. I think I might have had the hammer spring installed wrong (feeling stupid). Not sure if that would be the problem. Everything still functioned as before, except hammer is stronger. I do have a slight problem with the safety. It works properly, but if you can press to hard and it will go past fire (semi) to toward full. Thinking might just need a new spring for that...
Everything seems to function normally. Though it did before, have not done a live fire test... |
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Posted: 7/19/2017 8:00:52 PM EDT
[#8]
Had this problem before, my gas block was t not aligned right.
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Posted: 7/20/2017 10:35:00 AM EDT
[#9]
Quote HistoryQuoted:
Broke down the lower and re-install the fire control group and safety. I think I might have had the hammer spring installed wrong (feeling stupid). Not sure if that would be the problem. Everything still functioned as before, except hammer is stronger. I do have a slight problem with the safety. It works properly, but if you can press to hard and it will go past fire (semi) to toward full. Thinking might just need a new spring for that... Everything seems to function normally. Though it did before, have not done a live fire test... 
How far does the safety rotate? Couple degrees or more ? 10,20 ,30 degrees |
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Posted: 7/21/2017 2:03:03 AM EDT
[#10]
Quote HistoryQuoted:
Broke down the lower and re-install the fire control group and safety. I think I might have had the hammer spring installed wrong (feeling stupid). Not sure if that would be the problem. Everything still functioned as before, except hammer is stronger. I do have a slight problem with the safety. It works properly, but if you can press to hard and it will go past fire (semi) to toward full. Thinking might just need a new spring for that... Everything seems to function normally. Though it did before, have not done a live fire test... |
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Posted: 7/23/2017 8:35:43 PM EDT
[#11]
Quote HistoryQuoted:
Make sure your gas tube is not upside down and that your gas block is properly aligned. PSA don't put dimples on the barrel in my experience so it makes lining up the block a pain. If you fire and the bolt doesn't move or only moves a little, it's a gas issue |
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Posted: 7/30/2017 10:26:40 AM EDT
[#12]
Quote HistoryQuoted:
Bet it's fixed.
How far does the safety rotate? Couple degrees or more ? 10,20 ,30 degrees |
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Posted: 7/30/2017 5:22:53 PM EDT
[#13]
Was able to check test the 300 blk, and everything seems to bee working. Not sure if it was the hammer spring or the extra lube I added to the BCG and Charging handle...
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