AR gas port position

Bolivar

Bolivar

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Hey all

I've been reading a bit on the net about AR's in general and I came across this post

http://www.thehighroad.org/showthread.php?t=199626

If the short distance to the carbine gas port results in higher operation pressures and increased stress, why isn't the gas port simply moved further along the barrel?

Is it required that there be a minimum length of barrel after the gas port to ensure pressures stay high long enough to cycle the action?

Just curiosity on my part. Things that make me go Hmmm.:)
 
Gunnerlove said:
That and the standard bayonet still has to fit on issued rifles.
Click to expand...
Not down here anymore.

M4PIP and IC have no bayonet requirement.

MCP (Modular Combat Pistol) is being released this month from the Army, pretty much from what I have heard (I'm not in the pistol business so sometimes people tell me more about programs I have no interest in) it expect to vastly increase pistol holding in the US Army.

I expect the S&W M&P45 with CT laser grips and a Surefire X300 light to win, as well a extended bbl threaded for a AAC Ti-Rant suppressor, with the suppressor not standard but optional accessories. I think it will have the external safety lever.
(Pretty much every Big Army Small Arm will now be acquired with at least suppressor capability and a suppressor safety certified for Army use for later purchase or for purchase for units/elements needing or wanting a suppressed pistol).

I digress.

The lack of bayonet lug is a result of the desire for longer free float rails on the systems, as well as the US Army shifting away from Bayonet Training realising that bayonet training and usage is an item from the 19th Century not the 21st.
 
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