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1911 Main spring housing + Magwell Carbon steel - government \ full size 1911

Klonimus top quality checkered MSH + Magwell
US $52.90
or Best Offer
or 4 interest-free payments of $13.23 available with
Condition:
New
Out of Stock448 sold
Shipping:
Free USPS Ground Advantage®.
Located in: Hialeah, Florida, United States
Delivery:
Estimated between Sat, Nov 1 and Wed, Nov 5 to 94104
Delivery time is estimated using our proprietary method which is based on the buyer's proximity to the item location, the shipping service selected, the seller's shipping history, and other factors. Delivery times may vary, especially during peak periods.
Returns:
60 days returns. Seller pays for return shipping.
Payments:
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eBay item number:225202172612
Last updated on Oct 09, 2025 16:17:47 PDTView all revisionsView all revisions

Item specifics

Condition
New: A brand-new, unused, unopened, undamaged item in its original packaging (where packaging is ...
Brand
KLONIMUS
For Gun Make
1911 sig sauer, kimber, springfield,Smith & Wesson
Type
MSH
Gauge/Caliber
All
Specific Part
Mainspring Housing
Color
Two Tone
Features
Two piece
MPN
Does Not Apply
Material
Stainless Steel, Steel
For Gun Type
1911
For Gun Model
1911
Material/Finish
Carbon steel + stainless steel
UPC
640746593185
Category

Item description from the seller

About this seller

Klonimus

99.5% positive feedback241K items sold

Joined Jun 2009
1911 parts and accessories , high quality parts , great service.

Detailed seller ratings

Average for the last 12 months
Accurate description
5.0
Reasonable shipping cost
5.0
Shipping speed
5.0
Communication
5.0

Seller feedback (80,237)

All ratingsselected
Positive
Neutral
Negative
  • p***7 (1058)- Feedback left by buyer.
    Past 6 months
    Verified purchase
    quality item fit mainspring housing well! as supposed to mainspring weight seller did not respond to question seems to be right with my Springfield armory GI probably 16lbs hammer hammer drops properly and trigger job is smooth with a 4lb trigger pull, pretty aggressive texture which is ok with me NO sharp edges, works well with a Wilson Combat front add on strap under grips. taking off allen screw to remove bottom to easily put in mainspring pin a must then reinstall bottom Fast shipping
  • p***o (275)- Feedback left by buyer.
    Past 6 months
    Verified purchase
    Another happy upgrade to my 1911. The quality of this spring housing is the best! I'm very happy with my purchase. It took me less than five minutes to install, it was a drop in piece and it looks very good! The value is great. Compared to other brands, you could pay more than double. The original housing was made out of plastic like many other brands to save money. I'll buy another for my other 1911. Highly recommend! Seller is a solid A+++
  • s***o (105)- Feedback left by buyer.
    Past 6 months
    Verified purchase
    Fit right on to my 1979 Colt frame. I did have to file the inside of the frame, since it wasn’t flared, but it really didn’t take long to do that. I might buy another one. Good price for what it is, and I like the two tone look.
See all feedback

Product ratings and reviews

4.7
49 product ratings
  • 41 users rated this 5 out of 5 stars
  • 4 users rated this 4 out of 5 stars
  • 2 users rated this 3 out of 5 stars
  • 0 users rated this 2 out of 5 stars
  • 2 users rated this 1 out of 5 stars

Would recommend

Good value

Good quality

Most relevant reviews

  • Top favorable review

    Klonimus aluminum MSH & Magwell

    Great fit and finish and no gun smithing needed to install. Replaced plastic MSH on my Kimber Raptor ll and looks great. Not only is this a great quality MSH/magwell, but it's also half the price of the overpriced name brand MSH/magwells.

    Verified purchase: YesCondition: NewSold by: klonimus

  • Top critical review

    Didn't match up with bottom of frame that well.

    Pro: looks good and appears robust; nice checkering, good anodized black finish, mainspring housing fit frame snugly. Con, mag well did not line up with bottom of frame that well. Large gap at forward face between pistol frame and mag well. Assuming that angle is somewhat off. Removed mag well and running with just the main spring housing.

    Verified purchase: YesCondition: NewSold by: klonimus

  • Solid product

    Nice product. It's the first aftermarket part I've installed on a 1911 and just as expected I needed to do some fitting. I'm a locksmith so fitment issues arnt something I'm unfamiliar with. Just used a small file to shave down one side of the rail and it for right in. I have the metro arms commander.

    Verified purchase: YesCondition: NewSold by: klonimus

  • sharp and clean fitting part at a good price.

    A very nice and clean made product, Not a cheaply made or assembled product either.Machined to a tight fit with clean edges and finish.Went well with our custome build.I feel sure i will buy more in the future and checking out more from this company on other 1911 parts.Thanks.Semper Fi.

    Verified purchase: YesCondition: NewSold by: klonimus

  • Nothing cheap about this.

    Two pieces of the right aluminum alloys machined exactly. Fits into frame tightly. Red locktite on the allen screw and you are good to go. Housing is externally identical to Springfield Armory unit. Cerakote the magwell itself if color matching is desired, mine will be OD green next week.

    Verified purchase: YesCondition: NewSold by: klonimus