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Posted: 4/25/2012 3:03:45 AM EDT
| Will a midlength gas system on an 11.5" barrel cause issues with short cycling? |
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Quoted:
Will a midlength gas system on an 11.5" barrel cause issues with short cycling? Well i was told by a gun smith that if i cut my 16 inch mid length barrel into a 14.5 inch it would cause problems with reliability. So to answer your question . Yes correct me if i am wrong. |
| Ive read that its a very bad combo, 11.5" barrels are way too short for a mid-length. If I remember reading correctly a 11.5" is pretty close to optimal for a carbine length gas system. I'm not a gunsmith, so take that for what its worth. Have you looked at Kino uppers yet? carbine length gas, midlength handguards. |
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Quoted:
Ive read that its a very bad combo, 11.5" barrels are way too short for a mid-length. If I remember reading correctly a 11.5" is pretty close to optimal for a carbine length gas system. I'm not a gunsmith, so take that for what its worth. Have you looked at Kino uppers yet? carbine length gas, midlength handguards. IIRC 12.5" is the shortest you should go with a middy. |
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Quoted:
Quoted:
Will a midlength gas system on an 11.5" barrel cause issues with short cycling? Well i was told by a gun smith that if i cut my 16 inch mid length barrel into a 14.5 inch it would cause problems with reliability. So to answer your question . Yes correct me if i am wrong. My 14.5" Middy Spike's upper takes offense to that. It runs flawlessly on anything I feed it. The only issue I could see is your gas tap being too small if you were to just cut it. This is fixed by said gunsmith opening up the hole. ETA: OP, 11.5" + mid gas is asking for trouble. There would be zero dwell time. Stick with carbine for anything under 14.5" |
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Yeah, I forgot about the Kino. That would be a great option. |
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Quoted:
Quoted:
Quoted:
Will a midlength gas system on an 11.5" barrel cause issues with short cycling? Well i was told by a gun smith that if i cut my 16 inch mid length barrel into a 14.5 inch it would cause problems with reliability. So to answer your question . Yes correct me if i am wrong. My 14.5" Middy Spike's upper takes offense to that. It runs flawlessly on anything I feed it. The only issue I could see is your gas tap being too small if you were to just cut it. This is fixed by said gunsmith opening up the hole. ETA: OP, 11.5" + mid gas is asking for trouble. There would be zero dwell time. Stick with carbine for anything under 14.5" Look like i need to find a better gunsmith. |
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I took my LaRue 16" midlength gas barrel and cut it to 12.5". It required opening the gas port rather large to get it to run reliably on anything other than XM193. I worked my way up in port size. It is a now a .101 diameter port. It runs well with a standard carbine buffer on everything. When Io run the hot NATO stuff like XM193, I run an H Buffer. So far a little over 1k rounds through it at this new larger port size and no problems. .084" would short stroke about every 3rd round.
But, the dwell time is the issue on shorter barrels. I'm still not sure about the long term reliability of my 12.5" midlength. |
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