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MAINSPRING HOUSING, FLAT, COMPACT, STAINLESS

Wilson Combat
SKU:
92SFO
$50.95
(11 reviews)
Current Stock:
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Wilson Combat

Enhance your 1911 handgun's grip and look with a Wilson Combat checkered Stainless Steel mainspring housing! 

Take your 1911's style and performance to the next level with our Stainless Steel checkered mainspring housing. This upgrade is crafted from bar stock, offering an authentic 30 LPI cut checkering. If you're looking for an ideal replacement for your cast or polymer firearm housings, look no further as these are the very parts used to build our custom 1911 handguns. Transform your gun today with this top-quality improvement. 

  • Stainless Steel
  • Compact
  • Flat
  • Glass bead stainless finish
  • Fully machined from bar stock stainless steel with 30 LPI checkering
  • Minor fitting may be required in some guns

NOTE: Wilson Combat 1911 small parts may require minor fitting and should only be installed by a qualified gunsmith. Although these parts are intended to be drop-in, due to the range of tolerances between various manufacturers' handguns, some fitting may occasionally be necessary. We highly recommend all fitting/installation of small parts is done by a professional gunsmith.

Reviews

  • 5
    Great quality, quick shipping

    Posted by R on Dec 8th 2025

    The Wilson Tactical main spring housing is very nice. The 30lpi checkering is impressively grippy. I had to do a bit of fitting to get the Wilson housing to fit my Kimber properly, lapping the surface that sits adjacent to the grip safety. It was pretty quick and easy.

  • 5
    Replacement For Plastic Mainspring Housing On Kimber Ultra Carry Ii

    Posted by Zack on Nov 20th 2020

    Very well made and good looking part. It was an easy drop-in replacement for my Kimber Ultra Carry II. Looks and feels exponentially better than the cheap plastic part that came on it.

  • 5
    Impeccable Quality

    Posted by K Holmes on Jul 28th 2016

    As with other previous reviewers postings, I purchased a couple of these for my Kimber Ultra CDP IIs as well, and found the fit & finish to be absolutely perfect. Both of mine did not require any filing / sanding / polishing or otherwise for fitting - they slid into the frame perfectly and provide a smooth as silk action. Also, a thanks goes to Kenny in customer service for his assistance with my order.

  • 5
    Highest Quality Part Coupled With A Near Effortless Installation

    Posted by Don P on Feb 23rd 2015

    Chose the Wilson stainless steel main spring housing as the replacement for the factory part in my Kimber Ultra CDP II. Couldnt be more pleased with the quality and the precision tolerance. The out of the package fit was truly impressive and required no more than a dozen passes over some 600 grit emory paper to allow the grip safety to function flawlessly. Without a doubt a part that Wilson can be extremely proud to offer.

  • 5
    Drop-In Fit For Colt Defender!

    Posted by Eugene Dickson on Jul 1st 2014

    I have two Colt 1911s and both have plastic Main Spring Housings. This part is a perfect drop-in MSH. It doesnt just look better, but the pistol grips better in my hand and is now just slightly heavier. Which I think is a good thing.

  • 5
    Great Upgrade Part

    Posted by Mike on May 31st 2014

    Perfect replacement for the Kimber CDP 9mm plastic part. Only a little filing required to fit just right for the safety grip adjustment. The little bit of weight it adds only makes the gun feel and handle even better than before. I will order the full sized version for another Kimber I own. Great company just down the road from me that does great things.

  • 5
    Perfect Upgrade

    Posted by Al on Feb 6th 2014

    Required only extremely minor fitting. The perfect upgrade to my Kimber Stainless Ultra Raptor II. Looks and feels great! Highly recommended for those wanting to replace the factory plastic mainspring housing.

  • 5
    Plastic Replacement

    Posted by Leon Bielucki on Apr 10th 2013

    Received 92SFO to replace plastic part Kimber used in my Stainless Ultra Carry. This is what Kimber should be using. Fit and finish are excellent.

  • 5
    Perfect Fit

    Posted by Dan Gruzd on Sep 24th 2012

    Took the POS plastic housing off my Kimber Ultra Aegis II and replaced it with the 92SFO. Outstanding fit and finish!