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lsufan1971
LSU Fan
Zachary
Member since Nov 2003
7732 posts

re: Official AR-15 thread
MK12 build
Went with a Criterion barrel instead of a Douglas. I really like the ACE stock. Had a Surefire RC2 so not going the Allen suppressor route as of now.

Image: https://i.imgur.com/XOUJZwA_d.jpg?maxwidth=640&shape=thumb&fidelity=medium
This post was edited on 5/24 at 7:49 pm


Clyde Tipton
LSU Fan
Planet Earth
Member since Dec 2007
35357 posts

re: Official AR-15 thread
Does a flash can add to total barrel length?

I know 5.56 needs a minimum of 10.5 inches to fully burn powder and perform correctly.

LINK

Image: https://palmettostatearmory.com/media/catalog/product/cache/1/thumbnail/9df78eab33525d08d6e5fb8d27136e95/5/1/5165451265.jpg


The linked upper has an 8.5" barrel with flash can. However, the hand guard is a Lightweight M-Lok 10.5". As you can see the flash can barely sticks out.

Does this accomplish the 10.5" needed or is the flash can irrelevant to barrel length and subsequent performance of the 5.56?

I'm not looking at that specific upper, just a general question that that specific upper illustrates.


bbvdd
Alabama Fan
Memphis, TN
Member since Jun 2009
17196 posts

re: Official AR-15 thread
quote:

Does this accomplish the 10.5" needed or is the flash can irrelevant to barrel length and subsequent performance of the 5.56?


Does nothing to add any barrel length which would improve/maximize powder burn


Clyde Tipton
LSU Fan
Planet Earth
Member since Dec 2007
35357 posts

re: Official AR-15 thread
Thanks for the reply. That's what I was thinking, but couldn't find anything definitive after a google search.


upgrayedd
Lamar Fan
Lifting at Tobin's house
Member since Mar 2013
93656 posts

re: Official AR-15 thread
Did you get that PSA lower?


NOLAGT
Over there
Member since Dec 2012
9295 posts

re: Official AR-15 thread
I got another one

Who Dat Space Gat

Image: https://i.imgur.com/HqGfFOz.jpg


upgrayedd
Lamar Fan
Lifting at Tobin's house
Member since Mar 2013
93656 posts

re: Official AR-15 thread
Isn't that BCG like 300 bucks?


NOLAGT
Over there
Member since Dec 2012
9295 posts

re: Official AR-15 thread
I got it on sale for like 240. Same with the barrel got it on sale.


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00
lsufan1971
LSU Fan
Zachary
Member since Nov 2003
7732 posts

re: Official AR-15 thread
CMMG MK 9 SBR
4.5 CMMG barrel with 3 lug adapter
4.25 SLR Helix Mlok hand guard
MVB PDW 9 MM stock
Primary Arms red dot with ACSS reticle
Silencerco Octane 9

Image: https://i.imgur.com/nq1qXWb_d.jpg?maxwidth=640&shape=thumb&fidelity=medium
This post was edited on 6/11 at 7:26 pm


CarRamrod
USA Fan
Spurbury, VT
Member since Dec 2006
48966 posts

re: Official AR-15 thread
Got my first supressor out of jail!!!!


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40
NOLAGT
Over there
Member since Dec 2012
9295 posts

re: Official AR-15 thread
How do you like that 4” 9mm barrel?

I’m about to pick up a CMMG 9mm upper and run there ARC mags. Not sure if I want the 4 or 8” version. I know 4 will keep more stuff subsonic but it’s so short lol. Plan to run a omega 9k when it’s free one day...a 45k for now.


HeadSlash
Army Fan
TEAM LIVE BADASS
Member since Aug 2006
32247 posts

re: Official AR-15 thread
Where's the OB rally point?


tke_swamprat
LSU Fan
Houma, LA
Member since Aug 2004
6548 posts

re: Official AR-15 thread
What’s the best tool kit for putting together a lower?


Soul Gleaux
LSU Fan
Baton Rouge
Member since Sep 2012
3266 posts

re: Official AR-15 thread
It can be done with various tools. But if you wanna lessen your odds of scratching your receiver, you’ll need some roll pin holders and punches, a castlenut wrench, and a vise block. I really like Magpul’s armorer’s wrench and bev block. Both are built tough and with great fitment, plus they have everything you need to assemble an upper.


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00
bbvdd
Alabama Fan
Memphis, TN
Member since Jun 2009
17196 posts

re: Official AR-15 thread
Wheeler Pivot pin tool is a game changer.


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00
lsufan1971
LSU Fan
Zachary
Member since Nov 2003
7732 posts

re: Official AR-15 thread
I like the 4 inch for the fact you stated. Just about any regular pressure round 124 gen or over is sub..


Damone
Colorado State Fan
FoCo
Member since Aug 2016
17689 posts

re: Official AR-15 thread


lsufan1971
LSU Fan
Zachary
Member since Nov 2003
7732 posts

re: Official AR-15 thread
I have an RC. I really like mine and almost no point of shift. It's built like a tank. I use the WarComp. I highly recommend as you flash\muzzle device.


Damone
Colorado State Fan
FoCo
Member since Aug 2016
17689 posts

re: Official AR-15 thread
quote:

It's built like a tank

This is why I got it. The amount of field testing those get is off the charts. I wanted one where I would never have to worry about reliability.


CarRamrod
USA Fan
Spurbury, VT
Member since Dec 2006
48966 posts

re: Official AR-15 thread
i posed this in the other suppressor thread to carson, but ill get more opinions here.

thoughts on a dedicated 9mm.

DA Wolf 9sd, rugged obsidian 9?


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