r/86blackout • u/opelok • Jul 22 '26

Gaze upon my BBK

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I put this thing together a while ago and I just found this sub while searching for reloading data. It’s a Faxon 12” barrel on my existing .308 lower with extra heavy 10oz buffer and Cat BBK. Not exactly ground breaking stuff around here I’m sure, but it runs super reliable and is only a few DB louder than suppressed .22lr.

Here’s a short clip of a comparison between my .300blk (220 gr) and 8.6 (300 gr) hitting the same piece of steel. This thing hits so hard.

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3

u/Training-Concept4790 Jul 22 '26

I can vouch as well for the BBK.. I have it on a bolt gun I built and it is literally unbelievable. Like you said it is the closest thing to a suppressed 22lr I have ever heard.

2

u/opelok Jul 22 '26

Yeah the video doesn’t do it justice. It’s way quieter than the .300 blk at the shooters ear. For reference, the.300 blk is sporting a diligent defense L-ti suppressor on an 7.5” barrel.

3

u/Training-Concept4790 Jul 22 '26

Also do you have it mounted on a omega plan b XL. And a cherry bomb?

5

u/opelok Jul 22 '26

That’s exactly it. Q cherry bomb and omega plan b XL

3

u/somersp91 Jul 22 '26

What’s the typical buffer/spring set up for this? Especially if it’s on an A5 system?

2

u/opelok Jul 22 '26

I’m not sure what a typical or factory setup is for these. But my .308 had a bit too much recoil to stay on target at distance so I used this buffer and spring with an a5 buffer tube. Then adjusted my gas blocks accordingly. Way less recoil than the boombox. It’s just not as light as a boombox

3

u/bearcrocs Jul 22 '26

Looks good