Newb Question on Jet Funnel Kit for USP40

[Brinks352]

Newb question.

If you install the Jet Funnel Kit in the USP 40 are you still able to use the original magizines or are you limited to the 16rd ones?

[C-Class]

The JF requires the use of longer magazines, hence the 16 round mags.
The 13 round mags are not long enough.

[Brinks352]

Thank you

[TooSixy]

You can still use your 13-rd mags if you remove the metal butt that came with the JF kit. Remove it with the hex key that came with the JF kit. The 13rd mags just stick out at the bottom but you should be able to use them with JF. Someone please correct me if I'm wrong.