Rated 5/5 based on 15 customer reviews
Item Number: 92SF
 Review Average:  
 Number of Reviews: 15
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Detailed Description


A Wilson Combat checkered mainspring housing is a great way to improve the grip and appearance of your 1911 handgun. Our mainspring housings are fully machined from bar stock with real cut checkering. These high quality housings are a drop-in upgrade for handguns with cast or polymer housings and the same parts used in our custom guns.

  • Fully Machined from bar stock stainless steel with real cut checkering
  • Low luster, glass bead stainless steel finish
  • Drop in fit for most full size 1911 handguns
  • Minor fitting may be required in some guns


 Product ReviewsClick here to review this item
Really nice part
Installed the flat checkered SS housing in a Colt Competition government. No fitting required at all. The plunger from the Colt wouldn't go into the bore in the housing. I'm pretty sure this was a problem with the Colt part since a spare I had from another gun fit perfectly. The only reason for the 4 stars is that the chamfer at the bottom of the piece is really small, about 1/32" and isn't remotely close to mating with the chamfer on the frame
Great looking part but not exactly drop in
This part is not drop in as the description implies, had to file the sides and top of the housing for it to fit in my SW1911, but ones it was fitted it looks really nice. Wilson please do a little better with cleaning the bore in this for the spring, I can hear the spring caps moving up and down in it. I put some grease on to quiet it down until it hopefully wears in.
Slight fitting required
For my Kimber Custom II Two Tone this required some filing and polishing to keep the beavertail from pushing on the firing pin safety too far and preventing the slide from going back on. Apart from that this was a great upgrade to the polymer mainspring housing that came with my Kimber and looks great with the rest of the frame
Excellent upgrade
Fit perfectly in my Kimber; just needed some light filing to allow the grip safety to operate properly. This part greatly improved grip index and also helped balance the pistol better. Very pleased with this upgrade.
quality product
MSH required filing to fit in Colt Government 45, once fitted, noticed an improvement that the heal of my hand no longer moved. Great texture without being too much. Will be ordering again.
Wilson Combat. The ultimate manufacturer for after market 1911 parts.
Recently purchased a new Colt Delta Elite rail gun in 10mm and was dissappointed to find it had a plastic main spring housing. Purchased this part as an alternative from Wilson Combat. It did require me to use my bench grinder on it, very slightly and it fits better in this pistol then Colts original part. The main spring housing is extremely well made and finished of impeccably. Highly recommended.
Needed quite a bit of finishing work.
The inside where the spring rides was extremely rough causing a terrible feeling when cocking the hammer. Also, I had to remove quite a bit of material to clear the grip safety on my Springfield loaded which was expected and could be nice if you are looking for a tight clean fit. If I didnt have to work the inside of the spring well and clean up the dings on the texture, It would be 5 stars.
Nice Piece
Bought this for my Springfield A1 mil-spec as well as pin kit and custom tune spring kit to replace my ILS. It took a bit of filing on the msh and grip safety to get them from binding and holding the safety down. But excellent fit and finish to the frame and the checkering gives a nice grip.
A little buffing for Kimber Grand Raptor II
My Kimber Grand Raptor II Comes stock, with a plastic POS. Wilson matched perfectly and slid in nicely the first time. Disassemble and take out to the flapper wheel for a little light buffing off the top. Now I have a solid base to pistol whip someone that wont crack out. And looks factory. Thanks Wilson!
Part came quickly and was top quality. Replaced my cracked Kimber plastic MSH. Had to file a bit off the top for a perfect fit against the grip safety. Finish matched my TLE RL II perfectly.
Nice Housing - Minor fitting was required
Very nice mainspring housing to replace Kimber’s plastic housing. I had to do some minor filing on the housing to get it to fit my Raptor II because of contact with the grip safety, but a few seconds of filing yielded a perfect fit and great feel.
High quality part, great feel
Ive put two of these in my 1911s as replacements, one in a Colt LW Commander, the other in a RIA nickel 1911. Required no fitting in the Colt, and moderate fitting in the RIA. But the feel is perfect, really stabilizes the gun in the hand. For carry, I hand file the checkering at the edges near the tip of the frame to soften it up a bit for comfort against my skin. But in the hand, its perfect! Sticky but not abrasive during long range sessions, very positive feel.
Springfield Armory SS Champion
True drop in fit for my Springfield Armory Champion. NO fitting work needed at all. I purchased the replacement pin set and hammer spring also from Wilson Combat to replace the factory ILS innards.
It was truly a drop in part for my Kimbers plastic mainspring housing. It adds that little touch.
Truly a drop in part
I purchased the SS mainspring housing to replace the plastic unit on my new 1911. I was rather scared about having to do some fitting to the housing, but after transferring the guts from my old housing, it was truly a drop in fit.