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Posted: 8/17/2006 5:48:10 AM EDT
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I am getting medium contour barrel from CMMG and then cutting it down to 12.5". Should I go with a carbine gas system or a mid-length gas system? I would prefer the mid-length, but was worried if 3.5" past the gas port is enough. What say the hive mind? |
I haven't been assimilated yet, but my opinion would be carbine (and I'm very fond of the middies). I know that when you do the "length math", it seems like the 12.5" mid would be the same as a 10.5" carbine, but since the mid has lower gas pressure than the carbine to begin with, I don't think you have as much room. I'd personally want the 12.5" with carbine gas system and their micro gas block, and then go with a 10" forend to cover the gas block anyway. That would leave about 1.5" of barrel between the forend and the suppressor. Of course you could ask CMMG (if you haven't already). I had my doubts about a 14.5" mid-length, but CMMG definitely did it. My confidence in their opinion and abilities is very high. I love my 14.5" middie, it's my favorite. I was thinking about getting one of their medcons and having it cut to 14.5" with a rifle forend over it. Pics when you're done please |
Where do I find this "length math"? |
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