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Discussion Starter #1
Besides the holes in the body?

I own an Expert 9 and have bought a Jet Funnel for my USP40.
Wonder if I should buy specific Expert 40 mags or I can use the ones I already have with my Expert 9.
Are there any differences in the lips, follower, springs, etc?

Thanks,

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Feed lips are different as well. .40SW mags can feed 9mm, but not 100% reliability.
 
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