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Posted: 5/25/2023 8:42:34 PM EDT
Does the gas port location make a difference with piston systems? I'm considering building a 12.5" upper do I gain or lose anything going midlength or carbine?
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TX, USA
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Posted: 5/26/2023 1:04:55 PM EDT
[#1]
Yes.
Piston guns suffer the same gas issues based on gas port locations as DI guns due to bore pressure at varying barrel lengths and port locations. |
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Posted: 5/26/2023 2:52:08 PM EDT
[#2]
@APSArmament
That makes sense. I have both carbine and midlength barrels I could use for a conversion. I would like to use the midlength to make the block more accessible. Do you have any suggestions or opinions? |
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TX, USA
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Posted: 5/26/2023 7:32:50 PM EDT
[#3]
Quote HistoryOriginally Posted By JTX23: @APSArmament That makes sense. I have both carbine and midlength barrels I could use for a conversion. I would like to use the midlength to make the block more accessible. Do you have any suggestions or opinions? Not any you'd like. I'm a big fan of factory designed piston guns as it's so easy to screw up an AR piston conversion. And i'm also a fan of the best AR piston design ever which is the teutonic goodness of the HK416. Something out of most peoples budget. |
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TX, USA
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Posted: 6/6/2023 8:59:37 AM EDT
[#4]
I have a 12.5" with mid-length gas system and a Adam's Arms piston kit on it. I had to open the gas port to something like 0.1 because of the short dwell time. I made it reliable, but it took lots of tuning.
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