Posted: 2/20/2016 12:40:45 AM EDT
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Just came across this and I thought I would share this with the hive. Maybe I am behind the times here but I haven't ever heard of these and am quite interested however I am hesitant to trust plastic to last. Delete if dupe. http://ar15mold.com/freedom-15-5-kit/ |
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Sell pattern cores for people to do their own investment cast aluminum receivers.
Would still require a small amount of machining (chase threads), tho. And people would need access to a kiln and crucible. And you'd have issues with different shrink rates from people using all kinds of different scrap aluminum (different alloys). Biggest obstacle is finished receivers are really damn cheap. |
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Quoted: The biggest question is why? It's not like aluminum lowers are heavy or currently expensive. And it's not that I don't like polymer it's that don't like substituting one material for another that the item wasn't designed for. |
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I am guessing it is just the idea that one can build a fully functioning rifle without any sort of registration. The only other reasoning I could think of would be the slight cost effectiveness. Quoted:
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The biggest question is why? It's not like aluminum lowers are heavy or currently expensive. And it's not that I don't like polymer it's that don't like substituting one material for another that the item wasn't designed for. Lost of aluminum 80% lowers available as well. |
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The biggest question is why? It's not like aluminum lowers are heavy or currently expensive. And it's not that I don't like polymer it's that don't like substituting one material for another that the item wasn't designed for. Because it makes it a unholy ghost gun, lost like the Glock 7, it can make it through metal detectors! |
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Quoted: Lost of aluminum 80% lowers available as well. Quoted: Quoted: Quoted: The biggest question is why? It's not like aluminum lowers are heavy or currently expensive. And it's not that I don't like polymer it's that don't like substituting one material for another that the item wasn't designed for. Lost of aluminum 80% lowers available as well. |
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Just came across this and I thought I would share this with the hive. Maybe I am behind the times here but I haven't ever heard of these and am quite interested however I am hesitant to trust plastic to last. Delete if dupe. http://ar15mold.com/freedom-15-5-kit/ 28 page discussion: http://www.ar15.com/forums/t_3_4/676733_Fruity_Ghost___DIY_100s_of_ARs_cheaper__faster__gentler_.html |
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I've posted this a few times but here I go again.
My first lower was a NFA polymer lower bought during the 2013 crisis. I used it for a year and when prices dropped I built and aluminum lower and swapped them. I them put a polymer .22lr upper on the poly lower. I had to do quite a bit of fitting work with my dremel to the bolt catch, mag catch, safety selector hole, and takedown pin holes. In the end it worked fine and I had no problems. Nowadays if it's even a remotley serious rifle, go aluminum. Especially with that kit. Yes, lots of useable cheap lowers sounds great. But that project is in its infancy. Aluminum is just so cheap and affordable there is really no reason for polymer. If you're just building shit do fuck around then go for it. Or maybe you want multiple CHEAP not on record lowers. Either way you're money. IMO the only worth while polymer lower is the cav arms lower. |
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Right you are however it seems most assume they need to be a machinist to complete them. Quoted:
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The biggest question is why? It's not like aluminum lowers are heavy or currently expensive. And it's not that I don't like polymer it's that don't like substituting one material for another that the item wasn't designed for. Lost of aluminum 80% lowers available as well. I'm a machinist and I haven't made one yet, although I am in the commie state of CT. |
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Quoted: I am guessing it is just the idea that one can build a fully functioning rifle without any sort of registration. The only other reasoning I could think of would be the slight cost effectiveness. |
Or you can make it yourself |