So, if youre like me, you like stribog or at least appreciate them. I am new to the 10mm round but I love it for out of state hiking and camping. I wanted to SBR it and keep it in MD, and I finally found a way to make the 29" length without a P/W muzzle device. The Global Ordnance AR buffer tube rear plate adapter, + SOGLW A5 9-slot Buffer tube + Adaptive tactical butt stock put me right at 29". From weeks of testing, I found that if I screw the buffer tube into the adapter only 3-4 turns, there is enough real estate for a solid lock up with the attachment screw to be held in place all by itself. I am going throw some blue thread locker on it now that I got it 29". but if anyone else is interested... that is a way to go