U.S. Army Patents New M4A1 Rifle Barrel

[RugersGR8]

https://www.americanrifleman.org/articles/2020/7/12/us-army-patents-new-m4a1-rifle-barrel/
U.S. Army Patents New M4A1 Rifle Barrel
by Guy J. Sagi - Sunday, July 12, 2020

 

[RugersGR8]

https://www.thearmorylife.com/forum/threads/us-army-invents-new-heavy-barrel-for-m4.3373/
US ARMY INVENTS NEW HEAVY BARREL FOR M4
Thread starterxdman
Start date Friday at 12:33 PM

&

https://www.firearmsnews.com/editorial/us-army-develops-new-fluted-barrel-for-m4-carbine/378850
US Army Develops New Fluted Barrel for M4 Carbine
C.P.T. Danrit - July 10, 2020
Two engineers at Picatinny Arsenal have developed a patented spiral fluting for M4A1 barrels to dissipate heat faster and prolong cyclical firing.

 

[Seadog]

https://www.americanrifleman.org/articles/2020/7/12/us-army-patents-new-m4a1-rifle-barrel/
U.S. Army Patents New M4A1 Rifle Barrel
by Guy J. Sagi - Sunday, July 12, 2020

View attachment 169049

They are going to nick name that one the pig prick

 

[Snattlerake]

Dumbasses, da rifling goes onna da inside.

 

[clintbailey]

Screw on accessories coming next...

 

[Profreedomokie]

Do you think an old Tommy gun barrel might have inspired them ?

 

[Glock 40]

Interesting that you can patent spiral fluting since lots of shops do it. I wonder what is so special about theirs.