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Theoretical question: converting AR-15 mags to mini-14?

2825 Views 7 Replies 6 Participants Last post by  Vorticity the Monkey
Hey guys...long time lurker, first time poster. I'm waiting to see if I won my online auction for a Mini-14 RR, and was pondering the magazine question. A few threads back, someone mentioned a 'do-it-all' magazine that worked in both the AR-15 and mini-14. As would be expected, this after-market magazine was a pile-of-you-know-what, but it got me thinking - how hard would it be to convert AR-15 mags to fit the mini-14 magwell? Would it be something simple like grinding down the side-latch on the AR-15 mag and adding a plate on the back so the mini could latch on to it?

Anybody ever try this? Like the title says, it's just a theoretical question - I'm okay with buying a few PMI/Thermolds and calling it good, but how hard would it really be to modify the AR-15 mag to function in a mini-14?
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Just one legal issue to remember... if you construct a new magazine, then it is illegal under federal law. If you modify it so it works in a Mini-14, and it still functions in an M-16 as originally designed, then it should be ok. There is an interesting article in the Shotgun News, Feb 3, 2003 (V57 I3) which talks specifically about magazine conversion and the BATF's opinion on the issue (page 30). Before you make any mod's, you might want to check it out.

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