Serious suggestion: Make dimensions as close to an AR15 as possible and use it's mag release, trigger AND MOST importantly, the buttstock has to take buffer tube. I don't mind the lower looking exactly like an AR
an aluminum upper that accepted ar bolts, carriers, and barrels would be most interesting
Something along these lines. The 180 lowers are nice ergonomically, but if you're going through the effort of making them, may as well tweak them to be better. I agree on the flared magwell if it's an option - makes sliding a new mag in that much easier. I don't personally do much part swapping on my guns, but I suspect if they'll take off the shelf AR accessories it'll make it more sellable.
If you could make a complete gun it's clear a lot of people want one, but with R&D, risk and the time I suspect you've already got a good idea of what's worthwhile and what isn't. Doesn't matter to me - AR180 uppers are so simple they aren't hard to make here in Canada :P
Tagged for interest.
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The plastic 180b lower sucks. But how many of these rifles are here in Canada ? 100?
If you guys built the entire firearm, I think there would be a huge market for it. It's really a great design. Either way, a replacement for the crappy polymer lower is a Godsend, so thank you guys!
Better late than never on someone producing the lower for us up here. Too bad the rifles are so scarce and overpriced these days.
I'll NEED a complete rifle too.
I was wounded by a machine gun, it looks really UZI