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
459 Reviews
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Haven't received it yet.
It is very difficult to review something that I haven't yet received. I ordered over a week ago and requested FedEx 2Day delivery. It is in transit somewhere. Stan might make some of the best parts and the greatest full house 1911, but his supply chain could use some work.
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Stan Chen SI Magwell
Consistently high quality. Easy to install. Fits perfectly andr feels great. Don’t forget to blend the frame so it mates up with the flew funnel.
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SI magwell
Easy installation, and great craftmanship !!!
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Magwell
Could not find a magwell that fit my SIA milspec profile. This one fit nearly perfectly. Will require minor fitting for cosmetic purposes.
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Blued Shooter Installed Government Magwell
Looks fantastic.As good as I expected .The workmanship is unmatched.
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Chen custom si magwell
I bought the SI blue magwell and put it on the Springfield armory operator aos 9mm and mannnnn does it look good! I'm also gonna put on black VZ alien grips with the flat bottom on it I want a blacked out look on the operator and chen custom helped alot so thank you so much to stan chen!
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Magwell SI
Amazing product This truly enhanced my 1911’s! For and finish second to non!! Awesome, friendly staff!! You have my full support!
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Excellent product.
Fantastic magwell, requires very little fitting. This is my second Chen magwell. The first one was part of a custom Caspian 1911 build that helped me take a 3rd place at the 2024 IDPA Nationals (reloads were a breeze). This new magwell will be going on a twin build. I also highly recommend the Chen thumb safety and rear sight. Great products.
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Chen SI "Shooter Installed" Magwell
Received the magwell and it matched my colt government competition pistol perfectly. Installed it on my pistol using the video and I am very pleased with the results and would definitely recommend this product to anyone.
