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Expert 9 and Expert 40 mags are the same?

537 Views 1 Reply 2 Participants Last post by  Montrala
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?


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· Registered
3,380 Posts
Feed lips are different as well. .40SW mags can feed 9mm, but not 100% reliability.
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