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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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.
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SI Magwell
Beautiful aesthetics with great functional enhancement.
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Stan Chen SI MagWell
SI magwell is a functional mag well with a beautiful finish. The contoured butt is also a nice touch not offered on many magwells on the market. Installation was simple enough... but I love m&ms and I finished them before the install. Total time for install is 15 mins. Great product funtional and affordable.
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SI Blue Magwell
I built a lot of 1911's in the 80's-90's and used magwells from all the big mfgs. I've since retired and now just shoot and 'smith for fun. The Chen SI Magwell is without a doubt the highest quality Magwell to come along. This dropped into a Springfield Ronin and required no fitting, the Chen Magwell and the cuts in the frame are so close to line to line there was no need to blend. Congrats on a fantastic job. PS - the M&M's lasted as long as it took me to do the install.
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SI Magwell
Easy to install and blends well with a Springfield. Great product.
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SI Magwell
Very refined magwell, looks great and much better for reloads. Easy install and quick shipping.
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SI Magwell
The highest of quality and craftsmanship.
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Superb Magwell
The SI is spectacular - exceptional design and beautifully made. This will be my new standard.
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Chen SI Magwell
I bought two, for a Colt Commander and a Colt Competition, both recent production. I doubt they would have fit better if Mr Chen himself had installed them. Excellent product.
