SIG P320 / P250 9mm 40 S&W 140mm base pad
- Fits USPSA 140mm magazine gauge
- CNC machined out of solid aluminum billet
- Not for the 21rd 9mm/18rd .40 factory mags
- +3 rounds with the stock spring, +4 rounds with Grams kit
- 1.5mm Allen wrench included 'with every order'
SIG P320 / P250 9mm 40 S&W 140mm base pads