Looking for ar15 300 blackout barrel Listing ID: 3116230

I am looking locally for a AR15 300 Blackout 9" to 11.5" barrel. 1/7 or 1/8 twist. That accepts a 0.75 gas block. Or, one with a gas block installed. I live in the Spring/ Woodlands area. I am not wanting to drive all the way to Dallas if I can help it. Please send pictures and information to 7135176065. My tgt email notification doesn't always work. Thank you