New M4A1 Barrel patented by US Army Armaments Center

**JediGuy** · 07-10-20, 13:52

https://www.thefirearmblog.com/blog/...-heavy-barrel/

**Hammer_Man** · 07-10-20, 14:01

Interesting. I wonder what led them to choose spiral fluting over straight fluting.

**justin_247** · 07-10-20, 14:02

Somebody please tell me that this isn't just spiral fluting...

**vicious_cb** · 07-10-20, 14:05

"New" as in lets take an idea from 1914 and claim its some leap in technology.

Also I can buy a finned barrel for my AR right now if I wanted.

http://www.gmriflebarrel.com/gm-m11-...56mm-with-ext/

**markm** · 07-10-20, 15:03

This is what happens when you let the gays in the military.

**Hank6046** · 07-10-20, 15:09

Originally Posted by markm

This is what happens when you let the gays in the military.

LOL!!, I'm dying, too funny

**MountainRaven** · 07-10-20, 15:15

Originally Posted by Hammer_Man

Interesting. I wonder what led them to choose spiral fluting over straight fluting.

Allegedly it means the barrel expands and contracts more evenly around the diameter, preventing the barrel from warping as it heats up.

Originally Posted by markm

This is what happens when you let the gays in the military.

**JediGuy** · 07-10-20, 15:33

Originally Posted by markm

This is what happens when you let the gays in the military.

This made me “lol”

**Buncheong** · 07-10-20, 16:03

Originally Posted by markm

This is what happens when you let the gays in the military.

TFB has seemed pretty gay to me for awhile. The Reeves guy regularly running around shirtless or wearing women’s clothing, etc. Mostly male audience.

GAF