Gun Talk 12/16/12

Gun Talk ^ | 12-16-12 | Tom Gresham

[kitchen]

Just as an academic exercise mind you, if someone were to build an AR with collapsible stock and 14 inch barrel, with the intent to reliably feed and function a diet of SA ss109, IMI m855, and homebrew 69gr MKHP, where would one put the gas port? Would the carbine location be best, or go with an intermediate? Is there any other consideration, i.e., special buffer springs, specific compensator, etc.? Now, would the same choices apply to a 16” barrel, or is this an entire different situation?

[umgud]

I like that. Wonder if my G26 would fit/

[2111USMC]

I haven’t done any heavy wrench work on a black rifle since the days we only had one model (the M16A1E1). However, I doubt that the 2 inch difference between the barrel lengths would make any “appreciable” difference in available gas pressure or volume.

[deoetdoctrinae]

Voila!

Listed on their website.

[2111USMC]

Yep, they make one for the G26.

http://www.sneakypeteholsters.com/glock-26-sneaky-pete-holster-belt-loop/

[umgud]

Thanks, I might buy and try one of those. I used to have a fanny pack that said Million Mom March on it.

[deoetdoctrinae]

Gonna call it a night, pardners. See you all next week.

[smokingfrog]

You should be able to do a mid length gas system with either one and a H or H2 buffer.

Or a Spikes ST-T1 heavy buffer.

If you’re not shooting full auto, it probably doesn’t matter that much.

[2111USMC]

Cya deo!

[Carriage Hill]

Signing-off for the night. 4am comes early... Have a good week, and stay safe!

[2111USMC]

Nite.

[smokingfrog]

keep your powder dry

[smokingfrog]

http://weaselzippers.us/2012/12/16/liberals-call-for-murder-of-nra-president-and-its-members/

[tallyhoe]

Every news story is about a shooting?

It’s the plan!!!

[kitchen]

Thanks!

[MHGinTN]

The gas port hole on a 14" barrel is usually drilled by the provider of the upper. I have 'tuned' more than one 14 inch with piston and impingement systems by removing a small amount from the recoil spring in the buffer tube ... take a 1/4" at a time and check to see it cycles reliably. The last one I 'tuned' has a Osprey Defense piston kit on it, 14 inch barrel, and I had to remove approx. 1/2 of a coil to get it to feed without a hitch now after 550 rounds through it ... and still haven't cleaned it 'cause it don't crap where it eats. ;^)

[MHGinTN]

The two inches does effect dwelt time ... which od course effects the pressure to move the bolt and carrier.