It wouldnt be able to work with a 9mm bolt. It would have to be an ar15 bcg with a 5.45 bolt face. That will reliably seat a 9mm every time. You would then need a cmg 9mm delayed blowback barrel. Essentially it would be the same setup as an ar15 but with a 5.45 bolt face and cmg 9mm barrel. The only problem would be ejection. I have this setup with a BCA bolt upper on my an ar15 lower. I use printed mags. It works but because its still using the ar15 ejector and the 9mm casing is shorter it ejects into the receiver instead of out. I have tried figuring out how to make it work flawlessly but still havent found a way. The only way I see it working would be to cut the BCG into shape of a 9mm bolt to allow a 9mm magazine ejector, or after cutting the bcg you could add a permanent ejector inside the upper receiver.

I might try to build this around the 9mm and see how ejection works because with my bolt setup it eject decently if I rip the bolt back. With a lever it might actually be more reliable.

I mean I already have non printed ones. They coming for me no matter what. I am just here to enjoy the time I have with them and the newly printed ones:)

Have you considered a 9mm? I have been looking for a bolt/lever for 9mm forever. With a 5.45 bolt face, the only thing that would need to be reworked would be the ejector. Either way, this is a badass design. Looking forward to the release!

As kopsis has said the design is so that most if not all free float. I do have some wiggle with the forend but it’s nothing crazy. The longer the forearm the more wiggle I get. You are suppose to technically jb weld or glue them for more stability but I don’t because I like to change the handguards around. There is a remix I believe on makerworld that has more rigid ribs on the handguards. On the shortest version it’s pretty solid. Mid to long there’s a lot less wobble. If I glued or JB welded it I am sure it would be fine.

That’s amazing. I look forward to this release thanks for the info.

I have 2 of the chortex chassis with kaewons 10/22 receiver. Love the combo. Also the duplex folder version 1.2 by maverick is probably the best brace and is identical quality to strike industries braces. I have a few strike industries and a few Chinese knockoffs and my duplex folder is more sturdy. You can be all in for less than 150 bucks for a 10/22 this way.

Is this a single shot? Or is there a magazine of some sort?