AR Pistol 7" or 10.5"

[saki302]

Go with 10.5 over 7.5 + kx3. The KX3 on the short barrel makes it heavier than the 10.5, and pretty much just as long.

You shouldn't need a KX3 to make the 10.5 run if they made it right.

-Dave

[michiganboy]

Built mine bufferless using arak21 upper that was 12.5 inch, still shorter then a 10.5 with buffer but with more barrel for longer range accuracy.

[Jimi Jah]

7.5". It's a pistol. 10" or 11" is a SBR.

[TacticalChihuahua]

If u want a gun purely for novelty get a 7.5. If it's in 5.56 the round will be below the fragmentation threshold before it even leaves the muzzle. So basically you're shooting a glorified .22 hole puncher. It's also utilizing a pistol length buffer tube instead of carbine and they are known to be finicky.

If you want a functional gun that offers good terminal ballistics and that will be reliable then get the 11.5. That's why BCM created the 11.5. More dwell time and more reliable.

[desertjosh]

I went 7.5 and haven't regretted it in the least. It's been flawless so far as well.