SIG MPX +10 Extended Basepad

(25 customer reviews)


  • Add 10 rounds to any MPX Magazine
  • Billet Aluminum w/Anodized Finish
  • Works with factory spring
  • NEW improved detent design
  • Compatible with all generations of mags/guns
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Designed and developed by ZRTS, these basepads add 10rds to your magazine capacity giving you a maximum of 40+1 in the 9mm SIG MPX.   Our basepads add 10 rounds to any length mag. Turns a 20rd into a 30!  10 into a 20, 30 into a 40!  The basepads are easily removed in the field without tools for cleaning, breakdown, etc.  ZRTS Basepads are machined from 6061 aluminum and anodized black.

These extensions work with GEN 1 and GEN 2 mags and guns.

Bottom is machined out for our grit tape numbers.  Black color is anodized.




Additional information

Weight 2 oz

Black, Polish, Bead Blasted

25 reviews for SIG MPX +10 Extended Basepad

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  1. Andrew (verified owner)

    Verified reviewVerified review - view originalExternal link

    Have not installed yet but noticed there are no instructions.

    1 out of 3 people found this helpful. Was this review helpful to you?
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