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The military won't switch, it shouldn't. A few modifications to the current system would be the most cost-effective solution. A new round would probably be best. But, as everyone else is saying, the reasoning to switch isn't there. Nothing has come out that completely destroys the DI M4. Switching would not only cost a HUGE amount, but then you have to retrain EVERYONE on the system. And, the AR piston system has not been refined for 40+ years with fielding in just about every situation and application possible.
Sic semper tyrannis.
yes and no, in a 14.5" barrel with 7" gas port makes it equivalent to a 16" barrel and a 9" gas port. for all practical purposes here though most people have a 16" barrel and a 7" gas port (most typical civilian carbine configuration). Most can't get anything less than a 16" barrel due to legal restrictions (NFA). Personally I wouldn't want a barrel with a flash hider welded on.
Last edited by gotoplanb; 01-30-12 at 14:28.
No. A mid-length gas system is hallmarked by the length of the gas tube, in and of itself, not where it falls on the length of any given barrel.
Carbine = 7" gas tube
Mid-length = 9" gas tube
Rifle = whatever length a rifle gas tube is. 11", innit?
Contractor scum, AAV
The mid-length gas port is 9.5 inches from the chamber. Rifles in this configuration are what is being referred to when you hear "mid-length" or "middy/middie".
ETA: Rifle is 13 inches, not 11.
Last edited by Scorpion; 01-30-12 at 14:30. Reason: Santoro beat me to it
but you can have the equivalent by dropping the barrel length to 14.5" and a 7" gas tube.
No, not "yes and no." Just "No."
A 16" w/mid-length gas is a 16" w/mid-length gas.
It is not "equivalent" to a 14.5" barrel w/carbine gas, because you have two dimensions that are completely dissimilar from one another. Add the variables like ammo, buffer, spring, wear rates of all and other components...
"Equivalent" according to which metric?
And, what's this got to do with what the military supposedly is or is not going to select or how it supposedly (which is to say, largely imaginarily...) views mid-length gas systems?
Contractor scum, AAV
Thanks guys, makes sense now, found this too.
http://www.03designgroup.com/technot...gth-gas-system
Todd
Colt/BCM
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