This buffer is designed to function in carbine applications. Pistols would have increased pressures.
So then what kynshot buffer would work with a 10.5 ar pistol
Yes this will work on 300 blk 10.5. 300 only needs 9in for all power burn. So it’s not even a comparison to a 556. I use it in my 300 10.5 and I use it suppressed, and non-suppressed.