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Chen Magwell Gen2

$220.00 - $270.00
19 reviews Write a Review
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  • Manufactured in the USA

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Covered by multiple US Patents.


The Gen2 Magwell

The ultimate magwell for the 1911 pistol.

The Gen2 again breaks new ground in magwell design. It is the first and only magwell integrated with the mainspring housing, that adds no length or width to the original dimensions of the pistol.  It delivers all the features and functionality of the original Chen Magwell, with significantly simplified installation. Multiple US patents have been filed by Stan Chen Custom/Legacy Custom Products Inc. to protect the related intellectual property.


Elegant form, Simplified installation

The Gen2 is machined as one piece, integral with the Mainspring Housing. It is attached to the pistol frame via the Mainspring Housing Pin, which is relocated from its original position.

Installation is greatly simplified over the Gen1. No welding is required.  This pistol is merely shortened, a new hole is drilled through both the pistol frame and magwell in one setup for a perfect fit, and minor final blending is performed.

The Gen2 Magwell utilizes a compact mainspring, in lieu of a standard 1911 mainspring.  It is an industry standard “Officers” or “compact” size mainspring, which has been proven to be completely reliable in independent testing, engineering analysis and over 30 years of use in numerous 1911 pistol models in the industry.

The Chen Magwell Gen2 comes contoured, blended, and dehorned throughout the part which further increases its utility and simplifies installation. The rear curve matches GI pattern grips.  A generous roundbutt is machined into the part itself, enhancing shooting and carry comfort.

Adds no length or width to pistol. Largest funnel possible for speed reloads. Allows stuck mag to be stripped from pistol.


Ask us about dealer pricing!

Elegant form, simplified installation. First and only magwell integrated with the mainspring housing, that adds NO length or width to the original dimension of the pistol.

19 Reviews

  • 5

    Posted by Business End Customs on 19th Oct 2020

    Fantastic quality, innovative design for real world use and impeccable customer service.

  • 5
    Customer review

    Posted by JEM Guns, LLC on 18th Oct 2020

    Review body is empty

  • 5
    The finest no-weld magwell on the planet!

    Posted by Randy Lee on 14th May 2019

    The Chen Gen 2 Magwell has been the finest magwell I have ever used. From the material selection, hardness, execution of machine work it stands well above any other magwell I have tried in my 30 plus years of working on 1911s.

  • 5
    Best Magwell Ever!

    Posted by Randy Lee on 11th Feb 2019

    I have installed the Gen2 magwell on 4 of my personal guns and my machinist employees have installed them as well. The ingenious design allows for the largest, deepest entry into the frame without adding extra length or bulk to the frame. The patented design ensures that the magwell will never get knocked out of alignment with the frame - I cannot say that is true with other one piece MSH/Magwells I have used in the past. The fit and finish on any of the Chen components I have used are absurdly nice, as is his checkering on the MSH backstrap!

  • 5
    Functional and good looking

    Posted by Allen Moore on 10th Feb 2019

    I have used a couple of these now on Commander sized guns. I am sure they look great on full size as well. But it really seems to set a commander pistol in appearance and i love the way it allows the use of a mag with or without an extended base pad.

  • 5
    Innovative and well made

    Posted by Greg Derr on 19th Jun 2018

    The Chen Gen 2 magwell has quickly become my favorite magwell for the 1911. The fit and funnel are spot on and the quality is outstanding. I recommend it to all my clients.

  • 5
    My go to magwell

    Posted by Greg Derr on 5th Dec 2017

    The Chen magwell fits and works great if you want to avoid welding. The funnel is as close a fit as I have seen and the side tabs keep it snug. Stan’s instructions for installation are clear. Just a note, this must be installed by a qualified gunsmith or machinist, well worth it if you want a quality fit.

  • 5

    Posted by Clevinger Customs on 5th Dec 2017

    As with all of Stan's parts, the quality of the Gen2 mag well is fantastic. His detailed instructions and high quality jig make installation a relative breeze.

  • 5
    Excellent product supported by excellent CS

    Posted by Zackery Hagler on 1st Oct 2017

    Innovative product that is the best solution regarding form, function and labor. Stan Chens customer service was also spectacular making the whole purchase smooth.