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
Please click here to see if the SI Magwell will fit your 1911.
How to Install the Chen SI Magwell
- Specifications:
- Weight: Approx. 74g
467 Reviews
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Stan Chen SI Magwell
This is absolutely a high-quality precision made product. Directions were very clear, took me about 15 minutes to install, fits like a glove. Add zero width to the frame, and very little extra length. You actually have to be looking for it to see it, but it creates a huge funnel to make a rapid magazine, insertions easy and fumble free. Absolutely would buy this product again.
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SI Magwell in stainless steel
I dropped this magwell into a Kimber Custom II 9mm that was given to me by a friend. It slid into place perfectly with no movement and absolutely perfect alignment and blending. The checkering is second to none and the McCormick magazines I use practically jump into the pistol. This magwell is a perfect example of attention to detail and pride in craftsmanship. I will not buy any other magwell at any price.
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SI Magwell - Blued
Installed smoothly without any alteration/fitting into my Springfield Garrison. An excellent product with flawless finish. Couldn’t be happier that I chose this magwell over other options.
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Stainless si magwell
Great product fits perfect looks great
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Chen SI Magwell - Stainless Gov/Commander
I love the SI Magwell, hands down the best user installable magwell on the market. These magwells fit the factory contours of Dan Wesson 1911s extremely well. Installed two of these SI Magwells on my Dan Wesson Pointman's, add some G10 stocks and you've got a winning combination!
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SI Magwell
Fit and Finish simply amazing. I have been a cabinet maker for 30 years completely different than what Mr Chen builts but the end results have to be very good or you will not be in business very long I installed my si magwell on a Alchemy hard chromed 1911. It looks like it came from the factory installed. The finish is a perfect match to the Alchemy hard chrome and the fit is just as good. I am sure that these will fit other brands of 1911’s just as well. I am already planning on ordering two more. Mr Chen thanks for a GREAT magwell coming from someone who appreciates a well made piece that looks and fits great. Thanks again Eddie
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Amazing fit and finish!
The SI Magwell was easy to install. But most impressive is how perfectly it fits and a perfect match to my Springfield build. Honestly even better than I could have hoped for!!
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Chen Customs SI magwell
The quality of workmanship was excellent! No fitting required on my 1911. Very happy with how it looks and functions.
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Some fitment may be required
I’m very used the Stan Chen SI on multiple 1911’s from Colt in recent years. This time it was necessary to fit it due to the lack of bevel on the frame. I found that the front angle of the SI funnel was a bit too angle for this particular frame. Was a bit challenging for a novice! Still love the SI anyways.
