A couple of N00b questions.

[XD40SUBBIE]

This may be nothing new to you seasoned wile veterans, but I just found out that my .40SW mags (I have four of them) will fit 9mm. Here's the backstory, because I'm a virgin at the prom, I have been in a craze with my proliferation of firearms. Recently, I had my buddy order me the XD 9 compact. My sub is okay, I'm still getting use to the recoil, but 9mm rounds are cheaper and from my rental experience the 4" barrel seems to make the gun a bit more fun to shoot at the range.

Anyway, I was kind of going crazy, ordering more magazines for the 9mm, until I ran into a post in the XD forums. Apparently, the .40Sw mags will fit in the 9mm and can hold, cycle 9mm snap caps. Of course, this is a loophole solution to the hi-cap law, since I think 15 rounds of 9mm will fit the .40SW mags.

So the question, is this okay? Or in other words would this blow up on me - eventually? It seems counter intuitive to use things labeled for different use on something that can kill.

Next question, it was also mentioned that if I bought new barrels, a 4" .40SW on the "service model"- 4" and a 9mm for my sub, I can interchange ammo between the two guns. Two questions, 1. same as above- will this eventually blow up on me? 2. Where can I get these barrels? Provided the answer for #1 is no. Thanks in advance, all!

[Mr. Meeseeks]

http://www.calguns.net/calgunforum/showthread.php?t=572486

[XD40SUBBIE]

http://www.calguns.net/calgunforum/s...d.php?t=572486

that thread is confusing. Half the people are saying it is illegal, the other half says no, since the magazine has not been modified. That was just icing anyway. I am more stoked at the fact I can interchange mags, ammo, between guns.

However, further research revealed. 9mm converting up, meaning larger bullet is not possible because the breach opening of the slide, so unless I change slides, which is probably close to buying another gun, it is not possible. However, I did talk to EFK Fire Dragon out of AZ and they have a 9mm Conversion barrel from my subcompact. They are out of stock at this time, but will call me when they are done fabricate the bunch. $154.99. The guy said that there is a 50/50 chance I can use my mags. The problem he said was with the follower of the 40, it may not hold 9mm rounds.

Apparently, older XD's for the 40 and 9 were identical, but Springfield changed this design recently. So chances are my .40SW mags will have followers too large to hold the 9mm round. But that's not a problem, since I can use the new XD 9's mags and just use my XD Gear Xtensions.

[XD40SUBBIE]

After watching a guy at the range load a 10 round mag in his pistol, rack the slide, drop the mag, top off the mag and load it into his pistol only to have an ATF agent walk up and tell him what he just did was illegal and arrest the guy, I'm not going to chance it.

I don't get it, how is this illegal??? Limit in California is 10+1, why is this illegal? Oh and why is a Fed agent enforcing CA law?

[PandaLuv]

I don't know about most of your post, but using a .40 mag to load 15 rounds of 9mm is not a loophole. It is illegal. 10 rounds. Done.

After watching a guy at the range load a 10 round mag in his pistol, rack the slide, drop the mag, top off the mag and load it into his pistol only to have an ATF agent walk up and tell him what he just did was illegal and arrest the guy, I'm not going to chance it.

wtf are you talking about?




look man, possession and using hi-caps is 100% legal, there is no law that states that you can't use a different caliber in a certain mag. Mag was built for .40 to use 10 rounds, using 9mm in it is legal. STFU and stop spreading FUD

[Mr. Meeseeks]

This is just my opinion, but I trust Librarian's input on these matters.

No, NOT illegal.

No law covers the USE of magazines this way; if the owner/user has not modified the mag it's legal to use. The visuals are better if you actually own a gun in the same caliber as the magazine, but no law says you can't buy mags for guns you do not own.

[PandaLuv]

It's not. But the ATF agent thought so.

jesus christ, STFU, ATF only cares about Federal laws.
CA DOJ is state laws. Why the hell would an ATF agent care about what a CA resident doing?

[repubconserv]

Hey I had a couple questions about my .50 beowulf upper that I have attached to my spikes tactical lower (marked in .223/5.56 cal). I also use 30 round .223/5.56 magazines because it holds 10 .50 beowulf rounds(but the mags are marked .223/5.56). I also have ar-15's that are chambered in .223/5.56 that I usually store together and take to the range together. Is this in anyway illegal because my lower is marked .223/5.56 instead of multi-cal?

1. If your rifle has a Bullet Button I'd recommend that 50Beowulf mags have their markings
   as such so there's no handwaving about having a hicap mag in a fixed mag rifle. (Yes, I
   know the 50Beowulf upper should 'fix' things for the 5.56 mag but it smells better/reduces
   confrontation.)
   .
2. If you are using a 223 AR with BulletButton, you should not use a 50Beowulf mag in it.
   .
3. Neither warning above applies to 'featureless' semiauto centerfire rifles which can legally
   use detachable magazines.
   .
4. Except for edgy (1) and (2) situations above, there is no law banning misuse of a magazine
   such that the misapplication of the mag actually stuffs more than 10rds in it.
   .
5. Every gun magazine made can be misapplied in another caliber, and a huge fraction of mags
   in the marketplace would transition into operable hicaps holding over 10 rounds when smaller
   caliber ammo (actually, case size not caliber) was loaded into them.
   
   [It's quite common for some 10rd 40S&W/357Sig pistol mags that fit in "common frame 9/357/40"
   pistols to work well when stuffed with 10+N rounds of 9mm ammo. You may or may not want to
   bet your life on this setup without lots of testing, though.]
   .
6. It is generally illegal for normal CA residents to acquire over-10rd 223/5.56 AR magazines.
   .
7. It is legal for CA residents to acquire 10rd 50Beowulf AR magazines like any other 10rd or less
   magazine. Wise counsel would be to order these w/floorplates marked with this caliber and that
   your mailorder (if such) specifically requests "10rd 50Beowulf magazines".
   .
8. It is perfectly legal for someone to make 10rd 50Beowulf mags from an assortment of typical mag
   parts. Again, the caveat from #7 above applies - you should use floorplates nicely marked as
   caliber "50Beowulf" (and not with an electric pencil). SOMEBODY NEEDS TO MAKE THESE. SOME
   
   .
9. The above is good theory. In the real world, to make things easier on you (and perhaps CGF) it
   might well be wise to have a 50Beowulf upper if you have a ton of 50Beowulf mags just so the
   "smell test" is a bit easier
   
   
10. The 50Beowulf mag has to work properly and without problems or parts changes back&forth in the 50Beowulf for it to be legally misapplied in a higher capacity 5.56 application..

CGF will back legit nonhicap mag cases charged as hicaps. But don't make it too hard on us, okay?
That's why I wrote all the above detail (recipe?)

MFGR FOLKS: SOMEBODY NEEDS TO MAKE 50Beowulf MAG FLOORPLATES!!!

Taken from this thread

(BWIESE is a Calguns Foundation legal expert, I will take his advice any day of the week)

[ucsdryder]

After watching a guy at the range load a 10 round mag in his pistol, rack the slide, drop the mag, top off the mag and load it into his pistol only to have an ATF agent walk up and tell him what he just did was illegal and arrest the guy, I'm not going to chance it.

My BS meter is reading off the chart right now. This is a contender for stupidest post of the year!

[zfields]

After watching a guy at the range load a 10 round mag in his pistol, rack the slide, drop the mag, top off the mag and load it into his pistol only to have an ATF agent walk up and tell him what he just did was illegal and arrest the guy, I'm not going to chance it.

....I tihnk I'd just gots dumers.

[repubconserv]

I don't know about most of your post, but using a .40 mag to load 15 rounds of 9mm is not a loophole. It is illegal. 10 rounds. Done.

After watching a guy at the range load a 10 round mag in his pistol, rack the slide, drop the mag, top off the mag and load it into his pistol only to have an ATF agent walk up and tell him what he just did was illegal and arrest the guy, I'm not going to chance it.

It's not. But the ATF agent thought so.

Kestryll forgive him, for he knows not what he trolls.....

[repubconserv]

I have a general question for n00bs. Why are you so emamored with mag capacity, lights and lasers?

Because we can. So I would ask you, why aren't you?

[XD40SUBBIE]

Alright guys, I think we are pretty square as to the legality. Bwiese's post seem to answer it completely. But the more important thing is, would it blow up in my face? LOL Say, should the mags I have hold the 9mm ammo?

Essentially, here are my findings again. The 9mm Service XD will always be a 9mm, unless I get the .22LR conversion kit. The subcompact .40SW can be converted for a buck and a half with some change to a 9mm. The mags right now are in limbo. As the gun is still in UPS's hands and DROS will not begin until tomorrow. Which means, not this coming but next Saturday, I'll get the XD 9 Service.

[XD40SUBBIE]

I have a general question for n00bs. Why are you so emamored with mag capacity, lights and lasers?

Duh? WE ARE N00bs, you know you were here once...

[zfields]

Alright guys, I think we are pretty square as to the legality. Bwiese's post seem to answer it completely. But the more important thing is, would it blow up in my face? LOL Say, should the mags I have hold the 9mm ammo?

Essentially, here are my findings again. The 9mm Service XD will always be a 9mm, unless I get the .22LR conversion kit. The subcompact .40SW can be converted for a buck and a half with some change to a 9mm. The mags right now are in limbo. As the gun is still in UPS's hands and DROS will not begin until tomorrow. Which means, not this coming but next Saturday, I'll get the XD 9 Service.

Bwiese was in relation to RIFLE magazines in bullet buttoned guns. NOTHING TO DO WITH PISTOL. They have their own issue with 10+ mags in maglocked rifles that doesn't exist in NORMAL pistols ( not taking ar/AK pistols etc )

Having a .40 mag that fits more 9mm is fine. you are not constructing, or modifying it to work.


as for it blowing up? No. plenty of people run conversion barrels in guns. They tend not to be 100% reliable as far as extraction though.