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Chen SI "Shooter Installed" Magwell

Was: $199.99
Now: $150.99
400 reviews Write a Review
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SI Magwell orders will ship within 3-4 days.
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  • Manufactured in the USA

Simple installation by shooters - No gunsmithing needed!

The SI Magwell is the latest addition to the Stan Chen Custom Magwell family. It delivers greatly enhanced reloads, elegant design and maximum durability.

Solid, one piece construction.

Large sculpted funnel for dramatically faster reloads. Through careful CAD design, every last millimeter of available real estate was turned into reload-enhancing surface area.

Designed to very nicely match the beveled magazine wells commonly found on current production 1911s, such as Springfields, Kimbers, Dan Wessons and current Colts (2018 production with fully beveled magazine well) .

Most Colts made prior to 2018, and other frames without full magazine bevels, will require minor blending. (See pictures above). We offer a "Blend Kit" to facilitate this (located under "Accesories").


Eliminates sharp frame corners. Unique funnel profile eliminates sharp edges at front of magazine well opening on the frame. Smoothing of all surfaces on the entire part yields total carry comfort.

Low profile roundbutt. Flowing design. The lines of the entire magwell were designed to flow well with the pistol, giving the bottom of the pistol a cohesive, custom look.


Custom quality checkering. Equaled only by the very best gunsmiths. Perfectly formed diamonds, row after row. Even at 20x magnification. Enhances recoil control.

One-Piece Durability. Precision CNC machined from a solid block of heat treated steel. No joints or screws to work loose, ever.

Made in-house at Stan Chen Custom, Durango, CO, USA

How to Install the Chen SI Magwell

400 Reviews

  • 5
    Stan chen self installed magw

    Posted by Omar Nichols on 18th Mar 2024

    Oh my gosh my Springfield armory garrison looks like a moded trp especially with the gray and black Lok grips but the magwell tops it off sooooo good my reloads are much faster also. Excellent product, I'm definitely buying more of them as I am a die hard fan of the 1911 Stan my man you out dud yourself.

  • 5
    SI Magwell

    Posted by Joe on 18th Mar 2024

    Installed easily and looks awesome! Makes speed loading much easier

  • 5

    Posted by Chris C on 8th Mar 2024

    Excellent quality, fitment, and customer service

  • 5
    Chen SI Magwell

    Posted by Jerome on 6th Mar 2024

    Exceptional product, great craftsmanship. I have this installed on both of my competition single stacks.

  • 5
    Si Magwell

    Posted by Kenneth on 21st Feb 2024

    Nicely made part, little to no gap on frame. Took some fitting, but worth the effort.

  • 5
    SI Magwell quality

    Posted by Sergio K on 14th Feb 2024

    The fit and overall quality makes this drop in magwell an excellent upgrade for my 1911

  • 4
    SI Magwell

    Posted by Michael Howie on 12th Feb 2024

    Finish was superb, part looked great, checkering was nice, fit into my early generation Springfield RO nice and easy. Fit is good, sadly there is a tiny gap between the frame and magwell. Many other reviews I have seen, they claim there was no gap. So I am unlucky or it was so minimal you really have to look for it. It functions great, looks great, wish there was no gap but in world of 1911 most things are not perfect drop in. This is as close as it gets. Great customer care, love the M&Ms, written thank you & the digital xmas card, all are nice customer service touches.

  • 5
    SI magwell

    Posted by Dieter on 12th Feb 2024

    Very high quality, just ordered 2 more !!

  • 5
    Drop in Magwell

    Posted by Rick Colvard on 12th Feb 2024

    I gotta say this thing is better than bottle beer with twist off caps. Very easy to install, as per Stan’s video, and it looks perfect and just what I needed. Go buy one your 1911 will look better and you’ll be glad you did.