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Customer Reviews
Helpful Positive Review nighthawk mainspring with mag well by Chris, Verified Owner, December 17, 2023
Quality product. Installed with no fitting required in a Colt Delta Elite.
1/1 found this helpful
Most Recent Reviews Very nice magazine well by Les, Verified Owner, June 27, 2025
I added this to a Springfield Garrison, it was a perfect fit. The sides of the well are not quite as wide as the old Smith&Alexander mainspring mag wells, and it hugs the frame tightly....so it does not completely cover the base of the grips...hence ...
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Most Recent Reviews Nice magwell by Dave, Verified Owner, March 15, 2024
Fits nicely and looks good on my Colt 1911 Wiley Clapp government model
Read All 3 Reviews
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Product Info for Nighthawk Custom Mainspring Housing & Magwell 1-Piece

Nighthawk Customs FM Series mainspring housings and magwells are precision machined from a solid steel, then hardened to resist wear from magazine changes. The tapered magazine funnel can be blended to seamlessly fit any standard 1911 and serves to guide your magazine home in high-stress, high-speed situations. Perfect for both competition and carry uses, the integrated magwell reduces reload time when it matters most. This mainspring housing features 20 LPI checkering to offer a sure purchase on the pistol.image

Gunsmith fitting may be required

The Nighthawk Custom line of Fully Machined parts are designed to be the gold standard in the 1911 parts industry. All Fully Machined parts have been fully CNC machined from solid steel billets. We never use cast, metal injected moldings or polymer parts. In order to create the Worlds Finest 1911s, only the best materials can be used. That is why you can trust Nighthawk Custom Fully Machined parts in your 1911.

Specifications for Nighthawk Custom Mainspring Housing & Magwell 1-Piece:

Manufacturer: Nighthawk Custom
Gun Make: 1911 Platform
Gun Model: 1911 Government 5in
Condition: New
Length: 6.5 in

Package Contents:

  • Nighthawk Custom Mainspring Housing & Magwell 1-Piece

Nighthawk Custom Mainspring Housing & Magwell 1-Piece Orderable Models

List of Orderable Models

Nighthawk Custom Mainspring Housing and Magwell, One Piece, Gov., 20 LPI Checkering, Fully Machined, Stainless Steel, SP0253 , MPN: SP0253 , UPC: 080683001310 , Code: 2YS-MSH-SP0251-SP0253
Nighthawk Custom Mainspring Housing and Magwell, One Piece, Gov., 20 LPI Checkering, Fully Machined, Carbon, SP0252 , MPN: SP0252 , UPC: 080683001723 , Code: 2YS-MSH-SP0251-SP0252
Nighthawk Custom Mainspring Housing and Magwell, One Piece, Gov., 20 LPI Checkering, Fully Machined, Carbon, Lanyard Loop, SP0251 , MPN: SP0251 , UPC: 080683001716 , Code: 2YS-MSH-SP0251-SP0251
Nighthawk Custom Mainspring Housing and Magwell, One Piece, Gov., 20 LPI Checkering, with Lanyard Loop, Fully Machined, Stainless, SP0254 , MPN: SP0254 , UPC: 80683001327 , Code: 2YS-MSH-SP0251-SP0254
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