Staying Busy

First I must apologize for not posting more often. Most of my day to day happenings end up on social media. If you are not following me on Instagram then you are missing a lot.

https://www.instagram.com/bigrix/

Lets back up a week or two to my T91 Pistol brace project.

It started with inspiration from Red_McCloud on the retro AR forums. He designed and printed a retro pistol brace and I needed something similar for my shorty T91 clone build.

Red_McCloud version top T91 version bottom

Mine makes use of the butt stock parts available from T91Tactical.com

These two pistol braces are not compatible in case you were wondering. The tube diameter and bottom lug on the T91 stuff is larger in dimensions.

Next I started work on prototyping a straight 180B style charging handle for the BRN-180.

Made a quick one out of aluminum to check dimensions and function. Works fine with one exception. Charging the weapon with a traditional grip when the dust cover is closed causes the dust cover to hit your hand and somewhat inhibits a full stroke. A change in hand position will be required to eliminate this.

Based off some of my 3D printed tools I use in the shop I designed these Field Strip Stands for use with any AR180, AR180B, or AR18. I am going to offer these through AR180Parts.com soon.

Finally I have been strugling to locate fire control parts for some folks so I decided to try something radical and see if I could adapt a drop-in AR15 trigger into an AR180.

I got it physically located so it hit the firing pin at the right angle and cocks correctly when the bolt carrier cycles. I have no idea if it will actually have enough power to fire a primer. Range testing to follow. Ranges are closed in AZ right now. If it does fire I have to figure out how to get the safety to work.

If this doesn’t pan out I will still be able to use parts of this design to work up a set of anti walk pins for the AR180.

Finally I was able to get to the range last week before they closed to shoot my AR18 for the first time.

3 Replies to “Staying Busy”

  1. 6 SHOTS IN ONE SECOND,,, 6″ RISE IN MUZZLE….WHEN WE SHOOT M-14 AUTO WE STAND ON LOOSE END OF SLING FASTENED TO FRONT SLING SWIVEL,, NO MUZZLE RISE, NO SHOOTING OVER BERM. HEAVY BI-POD WILL HELP HOLD IT DOWN ALSO.. BUT THIS SURE IS AWESOME FOR HOME SHOP WORK…
    LOVE IT……. GUNNEY

  2. HOW ABOUT MODIFIED MUZZLE BREAK WITH EXIT PORTS AIMED MOSTLY UP,…… ?? IN THE VIDEO??,,,,,,,,,,, WHAT HITS THE GROUND TO YOUR LEFT RIGHT WHERE FLAT GROUND CHANGES TO BIGGER GRAVEL?? IF YOU LOOK AT VID PLAY BUTTON AND TOUCH IT WATCH THE GROUND SPLAT RIGHT ON THE POINT OF BUTTON ABOUT FOURTH CARTRIDGE…. GUNNEY

    1. Referring to what hit the ground in the video. I was at a friend’s private range and he had big re-bar posts in the ground holding the target stands. We experienced some ricochets when the rounds would hit the re-bar. My friend got hit in the arm with a bullet jacket after this which is how we discovered the problem. They had little velocity but were sharp as hell. Cut him pretty good. Plans are in place to revamp the range and it will include different target stands.

      Longer strings in full auto had a very controlled shot placement. This video clip was only the initial shots but after the fourth or fifth shot you could put the shots right where you wanted them. I am going for historical accuracy with this build but a better muzzle device would certainly help.

      Next step is a forward pistol grip which is how Armalite dealt with the problem of muzzle rise and hot ass hand guards.

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