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On the 5.56 MRP I think they have 2 different gas system lengths carbine and mid length if I remember correctly. The .308 MRP use of a carbine gas system I don't know for fact but I imagine that LMT has there Bolt carrier correctly ported and timed for use in the carbine gas system.
Last edited by Thomas M-4; 05-28-10 at 18:22.
So a 14.5" with mid gas should really begin to bring the recoil down more towards the 20" barrel then?
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Stick
Board policy mandates I state that I shoot for BCM. I have also done work for 200 or so manufacturers within the firearm community. I am prior service, a full time LEO, firearm instructor, armorer, TL, martial arts instructor, and all around good guy.
I also shoot and write for various publications. Let me know if you know cool secrets or have toys worthy of an article...
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I don't mean to hijack the thread, but one quick question:
Are there any advantages of using a midlength gas system in an 18" barrel compared to using the new intermediate gas system?
Formerly known as "Son of Vlad Tepes"
i dont think so. the intermediate system seems to be the proper ratio of between 60-65%. it's an improvement over both previous options.
it's an indicator, not a rule:
14.5 carbine - 52%
14.5 mid - 65%
16.1 carbine -47%
16.1 mid - 59%
18 mid - 53%
18 intermediate - 64%
18 rifle - 69%
20 rifle - 63%
Last edited by bkb0000; 05-29-10 at 22:09.
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