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If you're building or rebuilding a 1911, the mainspring housing matters more than many builders realize. This EGW piece moves beyond the plastic housings that come standard on a lot of factory guns, and it shows immediately when you get your hands on it.
Fully machined from solid bar stock steel, this housing delivers a substantial upgrade in durability and feel. The 20 LPI checkering isn't just for looks either. The machine-cut pattern helps you maintain consistent hand position under recoil and gives you real traction when things get moving. It also helps position your hand's weight properly against the frame for more natural control.
The flat profile is the classic 1911 look, clean and straightforward. It fits Government and Commander size frames with a drop-in installation that works with virtually any modern 1911 from Colt, Kimber, and similar makers. The blued finish matches standard 1911 aesthetics and pairs well with other carbon steel parts.
One thing to note: pins and springs don't come with this part. If you're doing a full rebuild, you can either harvest the pins and springs from your old housing or source new components separately. That flexibility is actually helpful if you're upgrading an existing gun and want to keep quality consistent across all your parts. It fits standard 1911 Government and Commander frames, though it won't work with STI frames or short grip variations.
This housing works with 1911 Government and Commander frames including Colt, Kimber, and other standard full-size models. It won't work with STI frames or short grip variations. Check your frame size before ordering to make sure you have the right fit.
Yes, they're not included with this housing. You can reuse the pins and springs from your original mainspring housing if you're upgrading an existing gun, or order new pins and springs separately from EGW or other suppliers.
LPI stands for lines per inch. The 20 LPI checkering on this housing creates a machine-cut diamond pattern with 20 lines per inch, which provides grip texture and helps maintain proper hand position under recoil. It's a middle ground between finer and more aggressive checkering patterns.
It's designed as a drop-in replacement that should work with virtually any standard 1911 Government or Commander frame. That said, occasionally minor fitment work might be needed depending on your specific frame, but the design is engineered for compatibility.
| UPC | 841370116119 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | 11409 |
| Model |
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