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Old 04-16-2004, 03:01 AM   #1
 
Join Date: Feb 2004
Posts: 6
USP9 magazines upgrade help

How could I make a 10 round USP9 magazine into a 15 round one? Could I get a Wolffs full size 15 round spring and work it into a 10 round magazine body so that it could hold 15 rounds? What mods would needed to make it fit and work without any problems.
 
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Old 04-18-2004, 11:43 AM   #2
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Join Date: Feb 2002
Location: Fort Worth, Tx
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I wouldn't recommend doing that, since it is a felony. Only cops can have hi-cap magazines manufacturered after 1994, when the ban went into effect. The law specifically states that altering a 10 round mag to hold more ammo constitutes manufacturering a hi-cap mag.

Maybe we can resume the spray and pray after this fall.
 
Old 06-21-2004, 11:42 PM   #3
JFF
 
Join Date: Mar 2004
Posts: 7
mags

Jester: Do you know what the law has to say with regard to using an unaltered .40 mag in a 9mm to gain extra capacity?

Thanks in advance.....
 
 
Old 06-24-2004, 04:42 PM   #4
 
Join Date: Mar 2004
Posts: 3
The mag bodies and floorplates are different between the ful-cap and reduced-cap mags. The .40 mags will work with 9mm rounds but don't function reliably. I have some .40 ful-caps that hold 13 rounds and I can get 2 more rounds in using 9mm, but as I said, not reliable. 2 extra rounds isn't worth the problems. As far as being legal, I "believe" it is since you are not altering a mag, but on a ten rounder you probaly would only get one more round.
 
Old 06-25-2004, 10:42 PM   #5
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Join Date: Mar 2004
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bkraus5001

Out of curiosity, have you had first hand experience with malfs using 40S&W mags /w an HK pistol? You would be the first one I've heard to have problems.

I use them for the range, but for confidence reasons only use the mfg. 9mm.

Thks.

Jay
 
Old 07-05-2004, 09:44 AM   #6
 
Join Date: Mar 2004
Posts: 3
If I'm the first that you've heard of, why don't you use yours?

Quote:
Out of curiosity, have you had first hand experience with malfs using 40S&W mags /w an HK pistol? You would be the first one I've heard to have problems.

I use them for the range, but for confidence reasons only use the mfg. 9mm.
[/quote]
 
Old 07-18-2004, 01:53 PM   #7
JFF
 
Join Date: Mar 2004
Posts: 7
bkraus5001:

I don't use my 40 S&W mag for CCW carry in my USPc9 because I am unsure of the legal ramifications, and do not want to be the second person to experience a problem. :-?

Jay
 
Old 07-19-2004, 04:54 PM   #8
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Location: Fort Worth, Tx
Posts: 249
I'm curious. If the AWB does sunset in September, how hard is it going to be to alter our 10 rounders to hold full capacity? Does anyone know if it will be possible at all?

Jester
 
Old 07-23-2004, 02:57 PM   #9
 
Join Date: Mar 2004
Posts: 3
Mags are a totally different design. The follower won't go past the spot where the 10 rounders floorplate attaches. Specifically designed to be a biach to alter as per the AWB.
 
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