User Panel
User Panel
User Panel
KS, USA
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Posted: 2/11/2024 10:03:15 PM EDT
Have a 20in rifle upper on a lower with a carbine buffer tube.
It will fire eject the round but won’t pickup the next round. When I put a lower with a rifle buffer tube on the upper it will function. Except with steel case ammo. So gas issue. Would an adjustable gas block be the easiest way to fix? Any ideas? Thank you |
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Posted: 2/11/2024 10:12:40 PM EDT
[#1]
Heavier buffer?
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KS, USA
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Posted: 2/11/2024 10:15:26 PM EDT
[#2]
I could try that.
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Posted: 2/11/2024 10:21:57 PM EDT
[Last Edit: SuperStormBryan]
[#3]
Sounds under gassed.
I would try a lighter buffer spring and/or buffer, assuming you're using a standard weight carbine buffer now. https://bkingsfirearms.com/shop/ar15-spare-lower-upper-parts/ar15-sprinco-reduced-power-carbine-spring-w-kak-lightweight-buffer-2-7oz/ Its kind of boxing in that lower to that upper if you go that way though. |
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KS, USA
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Posted: 2/11/2024 11:02:57 PM EDT
[#4]
Thank you
Got it ordered |
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Posted: 2/11/2024 11:53:41 PM EDT
[#5]
Quote HistoryOriginally Posted By ban-hater: Heavier buffer? My thought. |
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Posted: 2/11/2024 11:59:34 PM EDT
[#6]
Quote HistoryOriginally Posted By MisterPX: My thought. Quote HistoryOriginally Posted By MisterPX: Originally Posted By ban-hater: Heavier buffer? My thought. But with the same upper not cycling steel case though? |
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Posted: 2/12/2024 12:18:53 AM EDT
[Last Edit: MisterPX]
[#7]
It sounds like the cyclic cycle is outrunning the magazine.
I'm presuming OP has tried different mags. Just hit me, different lowers. Do other uppers act the same on that carb lower? |
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