Rock Island Competition Magwell

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This magwell is for the Rock Island pistols that have the "tail bone" style frame. This is a black anodized aluminum magwell with a much larger funnel and weighs almost the exact same as the factory steel magwell. Our design has two set screws that contact the steel frame as opposed to the factory set screw that pushes on the mainspring housing, potentially adding weight to the trigger pull. (This magwell is designed to work with Remington and MBX mags. Short mags such as Factory supplied Mec-Gar will not work with this magwell.)

May not fit frames with front strap checkering

Weight 2.4 oz

Black anodized finish


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  • 5
    very nice magwell

    Posted by Lee Stallworth on Jul 16th 2022

    I purchased a competitor's Magwell and had to return it for poor fitment, this one fit perfectly, and works with my TF mag extensions, it also came with an extended stainless steel pin. def go with the Hayes Magwell for Tac Ultra!!!

  • 5
    RIA magwell

    Posted by Joseph Kellahan on Mar 17th 2022

    Just installed this on my pistol. The fit was perfect. There are no sharp edges and it feels much better, against your hand, than the factory magwell.

  • 5
    I just installed your magwell on my ria match ultra and it fitted perfectly tigth no movement thanks Hayes custom

    Posted by Jimmy Pascual on May 26th 2021

    If I have another ria hc I’ll order magwell from Hayes custom gun again

  • 5
    Looks awesome, feels awesome!

    Posted by Phillip on Feb 24th 2021

    Works with four different brands of mags so far. Love it, looks great, feeds like a dream.

  • 5

    Posted by Ryan on Jan 23rd 2021

    Magwell has great fit to my gun. Makes mag change smooth and quick. Awesome product

  • 5
    Magwell addition

    Posted by Joseph Pitra on Sep 8th 2020

    Fit and finish were exactly as described. A couple file strokes and the fit was perfect. That was described in detail in the video. I am also glad it did not say Hayes on the bottom like in the pic I saw. I am not a big Billboard on my stuff kind of guy. Thank you for a great product.

  • 5

    Posted by Brian Hogan on Aug 10th 2020

    Quality piece. Straight forward install.

  • 5
    Hayes Customs Magwell

    Posted by HENRY PEREA on Aug 19th 2019

    I added this Magwell to my RIA HCG PACKAGE. I was not disappointed. Excellent communication and flawless final product. Thank you guys!!

  • 5
    Excellent product

    Posted by Harold Myers on Jul 31st 2019

    Fantastic magwell. It was a perfect fit. Very little shaping on the frame at all. Basically just rolled the edge. Fit better than my factory and was a perfect fit for my VZ grips. Please keep making upgrades for the Rock Island double stacks.

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