P320-XTEN Magwell with Magazine Base Pads

(11 customer reviews)

$85.00

The custom Grayguns SIG Sauer® P320-XTEN Magwell includes two (2) heavy-duty custom base pads.

Wide magwells are designed to allow the user to load their pistol quickly. The Grayguns design extends only about 3/8 of an inch, making it practical and not too big. The P320-XTEN magwell is machined in-house by the Grayguns team from 6061 Aluminum and then finished with a Type II hard anodized coating.

Read our Fit Guide below if you intend to mix and match with 45 ACP magazines or modules.

If you already have our magwell, you can purchase additional P320-XTEN Hard Duty Extended Base Pads.

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SKU: SYS-SIG-XTEN-BPDHDE-MAGWELL Categories: , Tags: ,

Description

The practical design of the Grayguns P320-XTEN Magwell flairs, creating a wider opening for inserting your magazine. Magwells have been used for years by competitors to make it easier to load magazines. This magwell is appropriate for competition, duty or carry.

The magwell will slip on without modifications to the P320-XTEN’s grip module.

P320-XTEN Magwell Specifications

  • Machined in-house out of 6061 Aluminum, finished in Type III hard anodized coating in black to match OEM stock grip module.
  • Extends out about 3/8 of an inch
  • Designed specifically to work with our P320-XTEN Hard Duty Extended Base Pads

Components Included

  • Custom-designed magwell
  • Two (2) Grayguns P320-XTEN Hard Duty Extended Base Pads
  • 5-40 screw
  • Polytetrafluoroethylene (PTFE) Nickel coated tool steel retaining nut
  • Allen wrench

Fit Guide

  • The magwell is specifically designed for the SIG P320-XTEN 10mm.
  • Our magazine base pads are designed for the SIG OEM magazines provided with your pistol.
  • The magazine base pads will fit the 45 ACP grip module, but the magwell will not fit the 45 ACP grip module.
  • If you intend to use these base pads with 45 ACP magazines, you must have the square, 10mm inner base plates.
  • Your OEM P320-XTEN base pads can not be used with a magwell. They are designed for the OEM module and incompatible with an extended magwell. (This is why we provide you with two of our base pads in this kit.)
  • We do not test the fit with third-party magwells or grip modules from other sources.

The 10mm and 45 ACP versions of the P320 use different grip modules. Both are wider and deeper than the 9mm, .40 cal and .357 SIG versions. The fire control units are also different. Ensure compatibility before mixing and matching components.

Additional information

Weight .5 lbs
Dimensions 6 × 4 × 1 in

Share your thoughts!

4.91 out of 5 stars

11 reviews

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What others are saying

  1. Michael Ballard

    Excellent Fit

    Michael Ballard (verified owner)

    SIG P320 XTEN MAG WELL fit perfectly ,fast and easy installment.

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  2. getglendon

    Mandatory Upgrade!

    getglendon (verified owner)

    I made sure that the magwell was available & in stock before I purchased the pistol. I was pleased that not only was the price reasonable, but that it also came with base pads. I normally replace anything plastic that can be upgraded, but in particular the basepads/mag extensions. Not sure why anyone getting a magwell wouldn’t expect to swap them out, but I don’t particularly like jigsaw pattern/snaggletooth look when mags meet pistols. The magwell is clean, smooth & functional and for me, gives a better repeatable grip each time it’s held. The Xten is incomplete without this upgrade.

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  3. One person found this helpful
    bullgo

    Great Fit!

    bullgo (verified owner)

    The magwell and mag caps were of great quality and fit very well! Very nice parts!!!

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  4. One person found this helpful
    omnislash15

    Worth the Wait, almost a Necessity

    omnislash15 (verified owner)

    Signed up on the wait list and it only took like 2 weeks to be notified of stock. The magwell is precision machined to a tight fit. It took me less than 5 seconds to find the sweet spot it inserting it to the grip module: lip towards the business end first then the rest (backstrap end) is pressed hard into place. Snaps into place nice and tight, then insert the threaded block and fasten screw (and add a little threadlocker). No mods needed. 🙂
    The baseplates are sturdy and feels solid without causing the whole handgun to be grip heavy.

    These GrayGuns XTEN parts were designed as if it was always meant to complete this P320 XTEN.
    BTW, extremely fast process and shipping. That is how business should be done. Thank you.

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  5. 2 out of 2 people found this helpful
    cass228

    I Like It

    cass228 (verified owner)

    Took a bit of time to become “IN STOCK” but the wait was worth it. The installed Magwell not only looks great but does give the XTEN more balance.

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  6. 2 out of 2 people found this helpful
    George

    Absolutely essential upgrade for SIG XTEN

    George (verified owner)

    I looked up a couple reviews before purchasing and the common gripe was people having to shave/sand down their module to get the magwell to fit AND that the base pads could have been milled a bit more inside to compensate for the absurdly tight factory mag springs. The magwell and base pads I received went on with ZERO issues or modifications (10min install for magwell and bases). It has dramatically improved the comfort, feel, and balance of my pistol in my XXXL paws. I installed everything at the range to compare handling before and after with same ammo and WOW what a massive difference! Even if no changes were made since they launched this product and the complaints were from whiny Karens who shouldn’t be handling a 10mm (or any handgun for that matter), this is OUTSTANDING and ESSENTIAL for every XTEN.

    As always, my pistol upgrades come from Grayguns. If they don’t offer something for your pistol, you don’t need it. End of story.

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  7. 2 out of 2 people found this helpful
    Quinton Anderson

    SIG-XTEN-Magwell & Base Plates

    Quinton Anderson (verified owner)

    The magwell fits perfect as well as the base plates. Took all of 10 minutes to install everything. Very pleased with my purchase, great company to deal with A+++

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  8. One person found this helpful
    jjmercer45

    Xten magwell and base pads

    jjmercer45 (verified owner)

    tried these after shooting my x5 with magwell. just what the Xten needed. very comfortable, nice fit. looking for more base pads.

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  9. One person found this helpful
    dolebeatsmusic

    Oh yeah baby!

    dolebeatsmusic (verified owner)

    This is a great addition to the xten. I little bit balance for that front heavy pistol. Very pleased with the fit and function

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  10. One person found this helpful
    josh.j.henry

    OEM magazines do NOT function

    josh.j.henry (verified owner)

    The magwell requires GGI basepads (like the 2 included). OEM magazines with OEM basepads will not seat with the magwell installed. Minus 1 star for not indicating this on the product description. Otherwise, solid fitment, feels great, improves grip.

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    • 2 out of 2 people found this helpful
      Grayguns Customer Service Team

      Grayguns Customer Service Team

      Josh, thank you for pointing this out. We have just updated the Fit Guide for the product. Frequently, when you add a magwell to a pistol, the OEM magazines and base pads do need modification (extended base pads) to fit unless they were originally designed for use with a magwell. As an example, the OEM 17-round P320 for the X-Carry will not fit in the X-Five with a magwell without aftermarket extended base pads.

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  11. One person found this helpful
    Gordon Hulme

    Gordon Hulme (verified owner)

    I added these to my new Sig X-Ten and they made a huge difference in control of the pistol especially with it’s spicey
    recoil Also the +4 Mag extensions when I finally got two new extra mags from Sig . The quality and fitment of the mag extension
    and the base pads are exemplary and quite clever as it is rock solid yet is removable if needs be. Gray Guns top quality products !

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Disclaimer

Many parts sold by Grayguns - including but not limited to triggers, trigger kits, internal components and spring kits - are intended for installation by a qualified armorer or gunsmith who is familiar with the firearm.

Although kits fit with no issues in a great majority of pistols, Grayguns cannot guarantee perfect functionality in every instance.

Due to varying tolerances present in all mass-produced firearms, professional fitting by a qualified armorer who is familiar with the pistol's action may be required.

Grayguns offers installation services for all parts kits we offer. If you have any issues or questions about the installation process, STOP IMMEDIATELY and contact the Grayguns Customer Service Team.