Home CMMG 300 Blackout Rifle Builds With Army Ranger Dave Steinbach

300 Blackout Rifle Builds With Army Ranger Dave Steinbach

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300 Blackout is talked about a lot these days for home defense. So, retired Army Ranger Dave Steinbach decided to talk about three different 300 Blackout Rifle builds being worked on by Maxim Defense.

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44 COMMENTS

  1. They are the Maxim defense right? I have one and I am putting the labra 30l can on the 5 inch barrel and want the longer hand guard as well. Did you run into any issues with the can. I know its been a year so I hope you see this.

  2. Mine is a 8.5 inch, with a dead air break for my wolfman, PSA upper, seekins mcsrv2 mlok rail, aero m4e1 lower, geissele single stage, geissele extended mag catch For optics 3x micro prism from primary arms, utg slim 45° offset rmr mount I'm probably going to put a 407c 2 moa or 507c Vulcan the outer circle is bigger the closer it is to your eye so if you put the offset all the way back you can use it for super quick close range and this is adjustable by how far you put it down the rail or stock position so in side a room just put the giant circle on them and bow bow bow see something down the hall put that Chevron on them bow bow bow. Pending funds I'd go 4x acog and Vulcan 507c. I havent added the grips and stuff but I'll probably use some assortment of fab defense vts finger hook/ gradus m short rubberized grip, ergo mlok covers usually to fill some grip gap, low profile .27 inch height pic rail and maybe touching it up with talon grips diy rubberized. I used color fill sticks to do red for fire and white fore safe and stars for flag on lower.

  3. What stock is on the 5" barrel gun? I'm putting together a pdw. Looking hard at the q ar stock as it seems to be one of the few that run supers and subs with no issues. Have you been able to test drive yours yet? Any issues?

  4. Currently building my .300 right now, mid way was building a 5.56 last minute decided to focus on home defense round, silenced, and hard hitting. Frankenstein build, DONT regret it being my first AR build. Ammo is just more expensive than the 5.56 but overall happy with my first build so far. Few more things then I can test it! Cool vid Dave.

  5. In the process of an 8.5" compact build. Having cycling issues. Supersonics runs like a screaming bitch. Subs, Not so much. Ejects at 1:302:00 and won't send the BCG back far enough to strip off a new round and fully chamber. Can you give me BCG and buffer/Buffer Spring combo ideas?

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