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The Nighthawk Custom mainspring housing is purpose-built to transform how your Government or Commander 1911 feels in hand. Unlike polymer housings that wear smooth over time, this part starts with genuine 11L17 carbon steel machined from a solid billet and finishes in a professional blued coating. What makes this stand out is the 25 LPI checkering, which provides genuine traction against your palm without the overly aggressive feel some competitors deliver.
Nighthawk engineered these housings as part of their FM Series, and you get the quality you'd expect from a shop that hand-builds every gun. The flat profile gives you a clean, low-profile appearance and lets you achieve a naturally higher grip without any awkward angles. This directly improves your control during recoil and helps you stay on target more quickly between shots, whether you're at the range or in competition.
The flat design puts you closer to a proper shooting grip compared to arched versions. It seats flush with most standard frames and distributes recoil forces more naturally through your hand and forearm. Installation requires transferring your existing spring components, though quality-machined parts like this rarely require heavy fitting on properly manufactured frames.
Every Nighthawk FM Series part starts as solid bar stock rather than forgings or castings. The CNC machining from solid billets ensures consistent dimensions and superior material strength. You'll notice this the moment you handle it, the precision cut and smooth finish feel like they belong on a quality firearm.
No, this is the housing only. You'll transfer your existing mainspring, cap, and retaining pin from your current housing. Most people find this straightforward, though having a rebuild kit on hand never hurts in case your old components need replacing.
Nighthawk parts are machined to exacting tolerances and drop in with near-zero fitting on properly manufactured frames. Some users report needing minor file work on the side rails, but this is uncommon with quality aftermarket parts. Frame-to-frame variation exists even among factory guns.
Flat housings position your hand higher and more naturally for a conventional grip, while arched housings have a rounded swell that some find more comfortable for a lower grip position. The flat design is standard for competitive shooters and those seeking a modern, sleek appearance.
The 25 LPI checkering is crisp and clean without being harsh. It contacts only the back portion of your grip and provides solid purchase without the sharp, uncomfortable feel of heavier checkering patterns. Most users find the traction excellent for both range and carry use.
| UPC | 080683000283 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | SP0227 |
| Model |
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