Barrel Length for CQB

[Winz]

...the advantages of a folding front sight that is integral to the rail

This is one of the features that seems to have been buggered off when Magpul/Bushmaster's ACR became the Remington ACR....

 

[greentips]

I would love to have a 11.5" with the KAC E3 bolt system.

 

[KevinB]

Soon brother...

 

[Suputin]

Pardon my ignorance but what the hell is an E3 bolt system?

FWIW I got an 11.5" bbl cause I want Kev to think I am cool.

 

[angryeyebrows]

Good luck finding one, & please tell when you do.

Wolverine Supplies just got a few in. Give them a call ASAP.

 

[FPembleton]

Wolverine Supplies just got a few in. Give them a call ASAP.

Wait... what are we talking about here. A few of what?

 

[rivetc78]

Wait... what are we talking about here. A few of what?

Daniel Defense MK18 RIS II
A nice Rail...allows the mounting of a M203.

Pricey, other ways to achieve the same for less. You don't have an M203 so why buy it (unless of course you do have a M203)

 

[angryeyebrows]

Wait... what are we talking about here. A few of what?

Sorry... the RIS II's NOT the gucci KAC CQB uppers!

 

[FPembleton]

Sorry... the RIS II's NOT the gucci KAC CQB uppers!

Oh thanks for the update! I thought the ones that were sold were an overrun and they weren't going to make another batch for civilian sales.

 

[OZZ]

10.5" seems optimum from the graph.

M855 VELOCITY DATA
__________________________

7.5" 2244 FPS ... 10.5" 2639 FPS
DIFFERENCE 395 FPS
DIFFERENCE/INCH 132 FPS

10.5" 2639 FPS ... 14.5" 2861 FPS
DIFFERENCE 222 FPS
DIFFERENCE/INCH 56 FPS

14.5" 2861 FPS ... 16" 2938 FPS
DIFFERENCE 77 FPS
DIFFERENCE/INCH 51 FPS

16" 2938 FPS ... 18" 3046 FPS
DIFFERENCE 108 FPS
DIFFERENCE/INCH 54 FPS

18" 3046 FPS ... 20" 3061 FPS
DIFFERENCE 15 FPS
DIFFERENCE/INCH 7.5 FPS