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View Full Version : Here's a crazy magazine idea...


xLusi0n
06-18-2006, 12:35 AM
MODS, remove if I'm out of line here...

10 X .458 rounds fit in a 30 round USGI M16/4 magazine...

if someone "manufactured" a 10 round .458 magazine, then technically you can legally buy it in CA. ???

blkA4alb
06-18-2006, 12:49 AM
No because it was originally designed for .223, and guess what it still holds 30 rounds of it. Is it legal to own an RPG if you say you were just going to hit him with it? :D . So no, unless you modify so that it cannot accept 30 223 rounds and only 458.

kantstudien
06-18-2006, 1:50 AM
Of course you can buy a ten round magazine. My ten round M1A mag holds 100 rounds of .22LR, does that mean it is illegal too? I am sure the .458 mag uses a different follower, so as long as you do not switch out the follower, you should be fine. It won't function properly without "tweaking," so "tweaking" is illegal. ;)

rorschach
06-18-2006, 2:24 AM
I read something along these lines about guys buying up 10 round .40 XD mags, and stuffing them with 12 rounds of 9mm, and they fit perfectly in a 9mm XD. Dont know how true this is, or if it even works, but just what I had read somewheres.

saki302
06-18-2006, 3:01 AM
A lot of .40 mags will work fine in 9mm guns and take an extra 2 rounds or so of ammo. This is legal too, as long as it's an unmodified mag and still takes .40 bullets.

-Dave

xLusi0n
06-18-2006, 5:46 PM
I think if someone MANUFACTURED / PRODUCED the magazine as FOR the .458 round, it would be legal. Things to identify it as a .458 magazine versus a .223 / 5.56mm would be to mark the magazine body with ".458"

Anyway, just a thought :)

xLusi0n
06-18-2006, 5:49 PM
BTW, it probably wouldn't be good if you were pulled over with 30 .223 rounds in your 10 round .458 magazine...even empty .458 mags with your AR-15 (5.56mm upper) and no .458 upper in sight would look bad too.

We should stop talking about this :)

Guns R Tools
06-18-2006, 7:55 PM
I think if the followers are modified with central concave surface so it won't double stack 223 and open the opening bit more so 223 would just pop out then it should be ok. And some 458 socom stamped floor plate to go with it.
That should be ideal for 10 rds of 458 socom rounds in your legal lowers.

artherd
06-19-2006, 12:59 AM
In theroey, it is at least legal to posess a 10 round .458 SOCOM mag, and 30 loose rounds of .223.

Wether it is legal to load .223 into said mag and fire it out of a .223 AR, is another question. (I wrote DOJ on this exact issue, use of a 10-round capacity magazine with more than 10 rounds of "sub-caliber" ammunition. They refused to answer, stating only "If you altered a 10 round magazine to hold more than 10 rounds of sub-caliber ammunition you could be cahrged with violating Penal Code 12020(a)(2) if a prosecutor believed that you had manufactured a large-capacity magazine, regardless of the ATF opinion."
Oh, yeah, ATF thinks this is legal :D

xenophobe
06-19-2006, 2:52 AM
In theroey, it is at least legal to posess a 10 round .458 SOCOM mag, and 30 loose rounds of .223.

Wether it is legal to load .223 into said mag and fire it out of a .223 AR, is another question. (I wrote DOJ on this exact issue, use of a 10-round capacity magazine with more than 10 rounds of "sub-caliber" ammunition. They refused to answer, stating only
Oh, yeah, ATF thinks this is legal :D

DOJ loves not giving answers... or rather just repeating laws instead of answering the question at hand.

grammaton76
06-19-2006, 2:16 PM
A lot of .40 mags will work fine in 9mm guns and take an extra 2 rounds or so of ammo. This is legal too, as long as it's an unmodified mag and still takes .40 bullets.

Extra 2? Try 14 in a 40cal Baby Eagle mag, usable in a CZ-75B. I'm going to have to be real careful watching who's loading what, since I'm picking up my 40cal CZ-75B tonight.

I would hate to find out the hard way what happens when you chamber a 9mm in a 40cal gun. I'll probably only take one or the other to the range with me...

grammaton76
06-19-2006, 2:17 PM
I think if the followers are modified with central concave surface so it won't double stack 223 and open the opening bit more so 223 would just pop out then it should be ok. And some 458 socom stamped floor plate to go with it.
That should be ideal for 10 rds of 458 socom rounds in your legal lowers.

I don't know about everyone else, but as long as the 223 pops out of the top of the mag, I would feel safe with this, floorplate-stamped or not. I would probably stencil or paint "458" on the side of it though, just so it doesn't get confused with my USGI 30rd 223 mags...

The only catch might be if widening the lips resulted in the 458 sitting too high in the mag and thus not feeding correctly. You might have to bend the lips AND shorten the tops, to make them sit at the correct elevation.

I think there could be a decent 'cottage industry' for someone industrious, who wanted to order 30rd mag kits, permanently convert them for 458, and then sell them to guys on here...

sohijiro
06-19-2006, 4:19 PM
if you find a 458 socom mag, it will be different than a .223 mag, it would have shorter feed lips. lenghtwise, because of the fatter case.

so if you can find it, it should be legal, even more legal if it was stamped for .458 socom.