FiveSeveN failure to eject every first round

Discuss the FN Five-seveN line of pistols and accessories.

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Kiran04
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FiveSeveN failure to eject every first round

Post by Kiran04 » 17 Jun 2017, 14:31

Very strange problem. I can load the mag to any number and the gun will fail to completely cycle the first round. Manually cycle the action and every other round fires as normal. Doesn't matter suppressed or unsuppressed. Doesnt matter how many rounds I load. Doesnt matter what magazine. First round also has very little recoil.

Buffman
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Re: FiveSeveN failure to eject every first round

Post by Buffman » 17 Jun 2017, 20:05

What ammo are you using? Ever cleaned the chamber with carb cleaner?

aslondon
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Re: FiveSeveN failure to eject every first round

Post by aslondon » 19 Jun 2017, 08:58

How many rounds through the gun?

Kiran04
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Re: FiveSeveN failure to eject every first round

Post by Kiran04 » 19 Jun 2017, 09:31

Factory ammo and yes.

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panzermk2
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Re: FiveSeveN failure to eject every first round

Post by panzermk2 » 30 Jun 2017, 12:57

I have seen OEM barrel with barely inspect chambers. It's been awhile though. In each case my/EA chamber prepping cured it.
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foxx0021
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Re: FiveSeveN failure to eject every first round

Post by foxx0021 » 26 Sep 2017, 20:40

What model FiveseveN do you have and how old is it? I've got a USG I bought used that has intermittent ejection issues...at first I thought it was either the magazine spring or catch groove (the groove is a little worn) and I just realized the gun itself has a polymer magazine catch that is worn down. I read a few other forums and I think this might have been enough of an issue that they upgraded the catch to a metal one like in most other pistols. Understandably so. Even my S&W SD9 has a metal magazine catch inside the polymer handle, and that gun was a small fraction of the price. I'd check that and the fit of the magazine to make sure its seating all the way. You can always set the gun down on something and give it a little downward pressure on the mag and shoot a few, so see if that fixes your problem. If you do end up needing a magazine catch you'll have to contact FN, haven't found anything like that anywhere else.

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