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Thread: Another PSA 9mm question

  1. #1
    Boolit Master


    nagantguy's Avatar
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    Another PSA 9mm question

    So far I love the little 9mm carbine that takes Glock magazines,it runs good and even runs with steel case “junk” ammo. I noticed a thing tonight after a cleaning if you extend or collapse the stock while the bolt is open the bolt will close as in go into battery, it does not fire but it sure made me jump, so I went through other AR weapons,some even PSA or with PSA parts and no other rifle I have will close the bolt by adjusting the stock. Is this an issue, anyone else have this happen?
    Last edited by nagantguy; 04-30-2018 at 09:12 PM.

  2. #2
    Boolit Master
    therealhitman's Avatar
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    Happens on mine too. Have not been able to pin point the issue so far. Might just be that heavy bolt overpowers the lock. Interested on the experts opinions...

  3. #3
    Boolit Master Texas by God's Avatar
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    The heavy bolt is probably the culprit; overcoming the standard bolt release spring. I can release the bolt on my standard ARs by slapping the buttplate.

    Sent from my SAMSUNG-SM-G930A using Tapatalk

  4. #4
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    Quote Originally Posted by Texas by God View Post
    The heavy bolt is probably the culprit; overcoming the standard bolt release spring. Sent from my SAMSUNG-SM-G930A using Tapatalk
    Believe you are correct
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  5. #5
    Boolit Master
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    You guys shooting cast out of them? What are your barrel lengths?

  6. #6
    Boolit Master
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    All cast. Lee 356-120 TC over 4.5 grains of WSF out of a 16" barrel. No issues since they replaced my first out of spec barrel.

  7. #7
    Boolit Master






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    I just took my 4.5 inch psa glock lower AR pistol and locked the bolt back and smacked the arm brace against the floor and it didn't release. I didn't SMASH it against the floor but held it about 6 inches off the living room carpet and let it drop. By the way mine seems to run like a top and ive got probably close to 500 rounds of cast pc'd and lubed bullets through it and the bore looks as clean as running jacketed. By the way I also tried my cmmg 16 inch ar15 that uses colt style stick mags that actually lock the bolt back when empty and it didn't release either. By the way, anyone that's on the fence about an ar15 in 9mm jump! there about as much fun as you can have with your pants on and are as cheap to shoot as a 22lr these days if you cast. I haven't accuracy tested the little 4 inch gun yet but my cmmg will shot cast 147s into just a smidge over and inch at a 100 yards. Loaded with jhps they make for a great home defense gun too. Not nearly as loud as a 5.56 and recoil is so close if I closed my eyes I couldn't tell you which I was shooting.
    Last edited by Lloyd Smale; 05-02-2018 at 07:27 AM.
    Soldier of God, sixgun junky, Retired electrical lineman. My office was a 100 feet in the air, closer to God the better

  8. #8
    Boolit Master


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    So the problem seemed to get worse and PSA sent me a labor and told me to send it in and I would receive either a properly functioning rifle or a replacement. They seem to stand by their products

  9. #9
    Boolit Master






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    could be too that the blow back 9s use a heavier buffer and spring. that said again I cant get mine to do it. I haven't smashed it on concrete to really test it but like I said it holds up to any normal use.
    Quote Originally Posted by therealhitman View Post
    Happens on mine too. Have not been able to pin point the issue so far. Might just be that heavy bolt overpowers the lock. Interested on the experts opinions...
    Soldier of God, sixgun junky, Retired electrical lineman. My office was a 100 feet in the air, closer to God the better

  10. #10
    Boolit Man
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    I think your problem is more likely an out of spec bolt catch.
    Most all AR platform firearms will do what you've explained if the butt is struck with sufficient force to take pressure off of the bolt catch.
    This will release the bolt.

    Sounds to me like your bolt catch is just not catching quite enough bolt.
    Kind of like setting a mouse trap to go off with just a stiff breeze.

  11. #11
    Boolit Master


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    Quote Originally Posted by Mgderf View Post
    I think your problem is more likely an out of spec bolt catch.
    Most all AR platform firearms will do what you've explained if the butt is struck with sufficient force to take pressure off of the bolt catch.
    This will release the bolt.

    Sounds to me like your bolt catch is just not catching quite enough bolt.
    Kind of like setting a mouse trap to go off with just a stiff breeze.
    Yes that is exactly what I was thinking

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Abbreviations used in Reloading

BP Bronze Point IMR Improved Military Rifle PTD Pointed
BR Bench Rest M Magnum RN Round Nose
BT Boat Tail PL Power-Lokt SP Soft Point
C Compressed Charge PR Primer SPCL Soft Point "Core-Lokt"
HP Hollow Point PSPCL Pointed Soft Point "Core Lokt" C.O.L. Cartridge Overall Length
PSP Pointed Soft Point Spz Spitzer Point SBT Spitzer Boat Tail
LRN Lead Round Nose LWC Lead Wad Cutter LSWC Lead Semi Wad Cutter
GC Gas Check