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Thread: Kahr Arms M1SB Burst Fire

  1. #1
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    Kahr Arms M1SB Burst Fire

    I purchased my M1SB in 2014 but didn't fire it for the first time until last month. Had multiple misfires, 2 and 3 round bursts and finally, a runaway gun (quite exciting but not legal or safe). I believe I'm not the only one who's had this issue.

    I returned the gun to Kahr for repair and they sent it back within 2 weeks, no charge, even though the weapon was out of warranty. Put four mags through it and though the action was MUCH better, still had a few two round bursts. Kahr now has it again. Not sure they'll get it right and if they don't, who should I send it to? Suggestions appreciated. Thank you.

    SA
    Las Vegas

  2. #2
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    I would just ask for my money back. That sounds like a defective product.

  3. #3
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    You tell Kahr you want a full refund and will not take the weapon back under any circumstances. The first time you sent it back they should have fixed it, the second time- the rifle needs to be destroyed and you should be refunded. They are risking your life returning that to you. Not even joking. Doesn't matter why it malfunctions, what the cause is- if it's in your possession when it malfunctions, you are the one who can get in trouble. The government will absolutely destroy your life even if you are completely innocent.

  4. #4
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    Kahr should be able to fix it right. Its pretty basic in design. The down side is the FP spring is strong enough to slam fire the cartridge if, 1) the bolt has not cycled back far enough to hook up the FP onto the trigger sear, but far enough to strip a cartridge out of the mag. 2) the trigger disconector is not tripping the sear back into its up position, there for allowing the FP to move forward with the bolt onto a fresh round. The Tommy bolt face was designed for a fixed FP so even if the FP is protruding "while stripping out a fresh round", it will chamber the round cleanly and possible tap fire the round as the extractor clips over the chambered round. Mind you, this is typically "not" a unsafe malfunction as far as firing out of battery is concerned. The stiff extractor coupled with the 360 deg. cartridge supported bolt face pretty much ensures a non out of battery firing. Other wise, the FA units would have been blown out casing master pieces. How do I know all this you might ask? I was the AO West Hurley gunsmith 81-83 and built more than a couple 27's That said, I agree with RETRO, if a Fed sees it go full in your hands, it has the potential to destroy your life legally.

  5. #5
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    Thank you

    Quote Originally Posted by xtriggerman View Post
    Kahr should be able to fix it right. Its pretty basic in design. The down side is the FP spring is strong enough to slam fire the cartridge if, 1) the bolt has not cycled back far enough to hook up the FP onto the trigger sear, but far enough to strip a cartridge out of the mag. 2) the trigger disconector is not tripping the sear back into its up position, there for allowing the FP to move forward with the bolt onto a fresh round. The Tommy bolt face was designed for a fixed FP so even if the FP is protruding "while stripping out a fresh round", it will chamber the round cleanly and possible tap fire the round as the extractor clips over the chambered round. Mind you, this is typically "not" a unsafe malfunction as far as firing out of battery is concerned. The stiff extractor coupled with the 360 deg. cartridge supported bolt face pretty much ensures a non out of battery firing. Other wise, the FA units would have been blown out casing master pieces. How do I know all this you might ask? I was the AO West Hurley gunsmith 81-83 and built more than a couple 27's That said, I agree with RETRO, if a Fed sees it go full in your hands, it has the potential to destroy your life legally.
    Thanks for the lengthy reply, xtriggerman. I have received the weapon back and will test shoot this weekend.

  6. #6
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    It shot great!

    Quote Originally Posted by stevea41 View Post
    Thanks for the lengthy reply, xtriggerman. I have received the weapon back and will test shoot this weekend.
    No issues. Kahr replaced most of the internals and the M1SB now shoots properly (and accurate, too).

  7. #7
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    Quote Originally Posted by xtriggerman View Post
    Kahr should be able to fix it right. Its pretty basic in design. The down side is the FP spring is strong enough to slam fire the cartridge if, 1) the bolt has not cycled back far enough to hook up the FP onto the trigger sear, but far enough to strip a cartridge out of the mag. 2) the trigger disconector is not tripping the sear back into its up position, there for allowing the FP to move forward with the bolt onto a fresh round. The Tommy bolt face was designed for a fixed FP so even if the FP is protruding "while stripping out a fresh round", it will chamber the round cleanly and possible tap fire the round as the extractor clips over the chambered round. Mind you, this is typically "not" a unsafe malfunction as far as firing out of battery is concerned. The stiff extractor coupled with the 360 deg. cartridge supported bolt face pretty much ensures a non out of battery firing. Other wise, the FA units would have been blown out casing master pieces. How do I know all this you might ask? I was the AO West Hurley gunsmith 81-83 and built more than a couple 27's That said, I agree with RETRO, if a Fed sees it go full in your hands, it has the potential to destroy your life legally.
    Off topic, perchance were you ever a member at the Iannamico brothers' old joint? Dunno if MachineGunBoards.com is still up, but 20 years ago when I was seriously looking into Thompson collecting/cloning you would have been a valuable resource to the community as an insider SME. (Still have owning a Chicago model on my Bucket List...)
    You really have to ask why Conservatives have guns? Because Liberals block freeways, burn cities, throw Molotov cocktails, loot, turn over cop cars, and think this behavior is Socially Acceptable.
    --unknown, memed by user "KeepnitReel" at Northwest Firearms

    The NRA: Fighting Democratic Party terrorists with military-style assault weapons since 1871. LIFE MEMBER

    Not employed or sponsored by any manufacturer, distributor or retailer.

  8. #8
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    Hello Diamondback, I was not aware of machinegunboards.com but thanks for pointing it out since they might be able to help me locate some literature AO had sent out as a thank you to then (1982) current customers. It was a Valentines card with a picture of all of the AO employees in a group shot holding our wares of the production line. You never think about keeping something like that when you have a chance to grab a few!

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