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Colt / Hammerli 1911 22lr Magwell with Arched or Flat Mainspring Housing

Colt 1911 22lr magwell and main spring housing msh | 1911 MSH | 1911 magwell | railgun magwell | 1911-22 parts | 22lrupgrades | Colt railgun parts | 517.200.02.0 | 517.200.03.1 | 517.200.04.1 | 517.200.06.3
 
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The Colt 1911-22 pistols have many interchangeable parts with standard 45 ACP pistols. However, the magwell is not one of them. The factory 22lr magazine has a wider basepad / floorpate than your typical 45ACP single stack mag and therefore all after market magwells designed for 1911's will not fit the Colt 1911-22 pistol made by Walther / Umarex. Our magwell is designed specifically for the Colt 1911 22LR pistols so that factory magazines and magazines equipped with high capacity NicTaylor00 / Shockbottle basepads and magazine upgrades will fit in the gun.

Our magwell comes with an aluminum main spring housing, main spring housing pin retainer, main spring cap and main spring cap retainer pin. The magwell and main spring housing are constructed of aluminum and machined to close tolerances for a clean fit. Some fitting may be required.


NOTE: IT MAY BE NECESSARY TO REMOVE SOME MATERIAL ON THE ALUMINUM MAINSPRING HOUSING IN ORDER TO GET IT INSTALLED (FITTED) INTO THE PISTOL GRIP.

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MSRP: $89.95
Our Price: $79.95
Savings: $10.00


Shipping: Usually Ships in 1 to 2 Business Days
Part #: COLT-1911-22-MSH-MW


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Installation Instructions RESTRICTIONS
 
1. Remove factory mainspring housing.

2. Check the fit of the new mainspring housing in the pistol. Some fitting may be required.

3. Push out roll pin used to retain the factory mainspring in the factory mainspring housing.

4. Retain the mainspring that is in your pistol.

5.Insert the included mainspring housing pin retainer, your mainspring and the included mainspring cap into the light weight aluminum mainspring housing.

6. Compress all parts listed in step 5, and while compressed insert the included mainspring cap retainer pin into the mainspring housing.

7. With the pistol hammer down, Insert the assembled mainspring housing into the pistol.

8. Insert the factory mainspring housing pin into the frame to secure the main spring housing.

9. Verify that the grip safety functions properly with the new main spring housing.

10. Screw into place the magwell with the included 8-32 screw using a 5/64" hex wrench. Tighten at approximately 15 inch-lbs

NOTE: IT MAY BE NECESSARY TO REMOVE SOME MATERIAL ON THE ALUMINUM MAINSPRING HOUSING IN ORDER TO GET IT INSTALLED (FITTED) INTO THE PISTOL GRIP.

Colt 1911-22 LR Magwell Installation Instructions

Average Rating: Average Rating: 5 of 5 5 of 5 Total Reviews: 24 Write a review »

  0 of 0 people found the following review helpful:
 
5 of 5 Perfect magwell for my H1 November 17, 2025
Reviewer: Christopher Donald from Mebane, NC United States  
Love the flared magwell and love the aggressive textured and arched housing. Had to do a tiny bit of fitting for my H1 but it was easily accomplished with a sharp file and a couple minutes of careful trial and error. No special tools needed and I'm no gunsmith. I'll be upgrading my magazines next so they flush mount again.

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  0 of 0 people found the following review helpful:
 
5 of 5 Very grippy. November 4, 2025
Reviewer: CE from IN United States  
Easy to install. Well made

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  0 of 0 people found the following review helpful:
 
5 of 5 The finishing touch September 23, 2025
Reviewer: Brassman from Lake Worth, FL United States  
Perfect fit, just follow instructions in video,
works well with machined mag upgrades

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  0 of 0 people found the following review helpful:
 
5 of 5 December 19, 2024
Reviewer: Greg Vandiver from Hurst, TX United States  


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  0 of 0 people found the following review helpful:
 
5 of 5 Magwell kit wlather 1911 Forge H1 February 12, 2024
Reviewer: Felix Maldonado from San German P.R., PR United States  
The part fit in perfect with no mods with really nive aggressive chequering in the strap..

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