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***IMPORTANT NOTICE FOR CALIFORNIA CUSTOMERS***
In compliance with the new California Law AB 1263, effective Jan 1st 2026 all California customers ordering MAGAZINE RELEASES will be required to create an account and email a copy of their state photo ID to verify age and identity prior to orders being fulfilled.  Please create an account PRIOR to purchasing to avoid delays or cancelations for identity verification and reference your order number when sending identification for faster processing.  We apologize on behalf of the law makers for the hassle and invasion of privacy for purchasing simple non FFL required parts and accessories.  We are further investigating the gray area of mag releases with this new bill and will update processes accordingly.  

California customers can also visit our California distributor Desert Depot Arms

MPI P320 Single Piece Extended Magazine Release

MPI P320 Single Piece Extended Magazine Release

Maskas Precision Industries

$44.99
(2 reviews) Write a Review
SKU:
MPI-320-C-EMR
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Our Single Piece Magazine Release is now available for the P320 platform!  Designed as a slightly extended magazine release for all P320 frames, this magazine release utilizes our innovative retention design eliminating the factory plastic catch and adds an aggressively knurled button extension of .050" over an OEM mag release for better reach and faster mag changes without breaking down your grip.  Catch side is profiled to fit the same as OEM on all currently available grip modules.    

Made right here in the USA from heat treated 4140 steel finished in a durable and corrosion resistant black nitride coating for a long service life.

Sold as a complete kit including:

  • MPI Single Piece P320 Magazine Release
  • ISMI stainless steel spring
  • Two black oxide coated stainless steel set screws (1 for a spare)
  • Allen wrench for install
  • Install Instructions

Scroll pictures for direct comparisons with OEM mag release and fitment in various grip modules

GRIP MODULE/FRAME FITMENT

Engineered to fit on all OEM and aftermarket Sig P320 grip modules that take the triangular P320 magazine release.  Will NOT fit AXG or aftermarket grip modules that take the round AXG style magazine release such as Mischief Machine. 

  • Sig all P320 grip modules
  • Icarus Precision
  • Wilson Combat
  • Brouwer
  • Etc

Installation Video (Standard Frame P365 Mag Release shown but P320 install is the same)

2 Reviews Hide Reviews Show Reviews

  • 5
    I'm a bad gun dad...

    Posted by Richard L on Jan 19th 2026

    I was doing my maintenance on my custom P320 X5 and I went to unscrew the set screw on my MPI mag release and WTH? I still had the OEM mag release installed! As a gun dad, I felt very ashamed and negligent. Got online immediately, ordered another mag release from MPI and got it a few days later. This is my second one and I absolutely love how solid and easy to install they are. If you have P365s, I would suggest you replace your OEM mag release with MPIs, which they now make in a standard size as well as the extended. I have swapped out all 10 of my P365 OEM's with Maskas. It's a no brainer! Thank you Seth!!

  • 5
    Perfect!

    Posted by Richard on Jul 31st 2025

    Bought this for my M17X! Fit was perfect with zero issues installing. It took me longer to get the OEM one out, MASKAS designed this perfectly and a breeze to install! Thank you for your quality parts! Anxiously waiting to see what you drop next for SIG's!

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