free shipping on orders over $350

Chen SI "Shooter Installed" Magwell

MSRP: $184.99
Now: $149.99
( saved $35.00 )
369 reviews Write a Review
SI Magwell orders will ship within 3-4 days.
Calculated at Checkout
  • Free Two-Day Shipping

  • 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

369 Reviews

  • 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.

  • 5
    Shooter installed magwell

    Posted by MAM on 12th Feb 2024

    Easy as the instructions show how to install. Would be nice to have the purchase option to already have the spring and pin installed so that it truly is a plug and play improvement. I get it is simple enough to do it yourself. But it would be nice to just take the part of the package and simply slide it on the gun. Other than that quality piece and quick turnaround time.

  • 5
    Shooter installed magwell

    Posted by Marty on 12th Feb 2024

    Fit my trp operator full rail beautifully! Nicest 1911 Magwell on the market. As nice or nicer than the other big name Magwell manufacturers out there.

  • 5
    Stan Chen Magwell

    Posted by Garland Brown on 10th Feb 2024

    Exactly as advertised. Dropped in and required absolutely zero blending. Replacing my Smith and Alexander’s with this product.

  • 5
    SI magwell

    Posted by Duane T Manning on 9th Feb 2024

    Excellent fit and finish! The M&M's and a hand signed thank you note are much appreciated too! I would recommend this magwell to anyone, fit my Springfield Garrison like it was a factory install