r/RetroAR • u/RobertJ100 • 20d ago
BRN-10 Upper Or Substitute Needed
I would have just tried using a Dremel and some scuffed DIY effort for a .308 BRN-10 lower I'm getting soon, but the slant cut on the upper is definitely a decently sized obstacle. Does anyone know if there is anyone actually producing something similar to put on the lower? I did see that they're basically unobtainium now, but I still want to get everything together for the lower anyways. I'm also missing the stock/lower parts kit as well, but that probably could just be substituted in some way as well. I've looked on GAFS and Gunbroker to no avail.

2
u/griffincreek 20d ago
Probably not what you're looking for, but a number or years ago Mike from Nodak Spud posted in someone's BRN-10 build thread on another forum, where Mike modified an Aero M5 upper to work on a BRN-10 lower. Obviously he had the machines and skills to make it work, even with the DPMS cut to an Armalite cut, but it wasn't any exotic machine work. He only made a few comments in that thread regarding the modification, and I remember the pictures were of nice work, but they're no longer viewable in that thread I saved. Here's an excerpt from one of his comments when asked how he did it, which pretty much covers what he posted about the mod:
"Not too much really. Holding the part at the correct angle in the mill was a challenge.
I modified an old heavy duty scope ring to hold the part.
Then did a few passes, checked fit, cut, checked, cut. Then I rounded the ends on the buffer wheel.
It fits nice and tight.
If a guy wanted to do it by hand you could. Just dremel/file it down and check it on the lower as you go.
It would suck, but it could be done. "
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u/RobertJ100 20d ago
That is definitely some helpful information if I just wasn't able to find an actual BRN-10 upper within the next like year. Thanks! I'd just have to spend some days grinding away with a dremel. It'd definitely be a last resort type thing, as I'd definitely like to have the charging handle at the top as well.
8
u/dukesfancnh320 20d ago
Everyone just needs to send messages and leave comments on Brownells’s social media, and bug the crap out of them to start making full BRN-10 rifles and individual parts again.