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
469 Reviews
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Nice upgrade to my Ruger 1911
Ordered the stainless and installed it on my Ruger Stainless Target II. A perfect fit and did not require any 'fitting'. SC makes a quality product and really make my 1911 look custom. Used the inners from the Ruger's MSH and did the function check, all in all it was a piece of cake! Thanks Stan for a high quality product!
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top tier
Simple to install, very clean machining and finish. Gives that 'custom' look to the pistol. very smooth reloads.
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Best drop in out there
I’m familiar with all the drop in magwells out there, and this one has the best fit and feel.
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THIS should be your first upgrade
When I got my 1911, over time I upgraded the recoil spring kit, the trigger spring, sear spring and magwell. All in that order. Had I known what I know I would have done the magwell first.
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Absolute Artwork!
I have been searching for the right magwell for my Colt Competition. I looked at several others, but as soon as I saw the Chen SI, I knew this was the one and ordered it. Fit and finish are PERFECT! Total drop in, no fitting required. The checkering on the back grips well, but not enough to dig in, very comfortable. The only thing I changed was the blasted finish on the side. I sanded that to match the brushed stainless on the side of the pistol (Sorry Stan, I had to "make it my own"). Any 1911 I buy in the future will undoubtedly wear on of these! As I said, Absolute Artwork!
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Outstanding 1911 Magwell
The SI magwell was installed on my Springfield Operator and it was a perfect fit. I my say, the magwell workmanship is outstanding. Another nice touch was the "Fast" delivery. Thanks, again!
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SI mag well
Just bought a Springfield RO operator in 9mm and installed a SI MAG WELL and the fit was perfect no gap between the bottom of frame and mag well no sharp edges any where just as advertised excellent quality. Will definitely pick up a couple more to replace the other guys mag well which just hangs there. Thank you for a excellent product, Michael
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Excellent dimensions
Perfect. Nothing more needs to be said.
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perfect fit
the magwell fit perfect and the finish is excellent.
