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This single-sided thumb safety is designed as a drop-in upgrade for Government-model 1911s. The HD (heavy duty) version from EGW stands apart because it starts life as a solid steel billet, not a cast or MIM part. The whole piece gets heat-treated for strength and hardness, then machined in that hardened state to maintain tight tolerances and keep everything perfectly straight.
That full-steel, heat-treated approach matters. You get consistent engagement without the common failures that plague inferior factory safeties. The positive serrations across the top give you real grip texture instead of a slick paddle that wants to slide under your thumb when you need positive control. The blued finish looks clean on classic builds while holding up to years of carry and use.
This isn't a drop-in part, so expect to do some stone work to fit it to your frame. That's normal for parts-bin upgrades. Once you dial it in, you'll have a safety that manipulates smooth, stays put when you want it to, and holds the hammer back reliably. People consistently report needing fitting work but finding it well worth the effort once installed.
When EGW engineered this safety, they saw a pattern of failures in the market from inferior cast and MIM components. Their answer was to machine everything from solid stock, heat-treat it for stability, then machine again in the hardened state. That process keeps the part as straight as possible and delivers tighter tolerances than you'll find in most aftermarket alternatives. The result is a thumb safety built to last through thousands of cycles.
No, this safety requires fitting work to function properly in your 1911. Most builders use a fine stone and test-fit method to dial in clearances. The upside is that once fitted, you'll have a safety that operates butter-smooth and holds rock-solid. It's a short-term hassle for a long-term gain.
The big difference is that EGW machines this entire safety from a single block of solid steel, then heat-treats it for hardness and strength before finishing the machining. Factory safeties are often cast or MIM (metal injection molded) and tend to bend or wear faster. The solid-steel approach with machining after heat treatment keeps the part straighter and more durable through hard carry and repeated use.
Yes, it works well for either application. The serrated design gives positive grip control, and the blued finish matches classic 1911 builds. Several users report installing these on competition pistols and carry guns with excellent results once fitting is completed. Since it requires fitting, have a qualified gunsmith handle the installation for best results.
Yes, EGW makes an ambidextrous version if you need controls on both sides of the frame. The standard single-sided model shown here is for the left hand side and is a good option if you prefer a lower-profile setup or are upgrading a traditional 1911 build.
| UPC | 841370101825 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | 11321 |
| Model | |
| Style | Thumb |
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