Nighthawk Custom Single Side Thumb Safety Stainless Fully Machined. With a shaft diameter cut to maximum dimensions this thumb safety is sure to provide a snug fit on your 1911. 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 1911 Thumb Safety Single Side: Manufacturer: Nighthawk Custom Gun Make: 1911 Platform Gun Model: 1911 Width: 3.25 in Package Contents: Nighthawk Custom 1911 Thumb Safety Single Side The Nighthawk Custom Nighthawk Thumb Safety Single Side Blued Steel is a quality addition to the Nighthawk Custom lineup. For more great deals on Pistol Parts by Nighthawk Custom please browse our Nighthawk Custom Gun Parts page. What firearm models does the manufacturer say Nighthawk Custom 1911 Thumb Safety Single Side is compatible with? The manufacturer says that Nighthawk Custom 1911 Thumb Safety Single Side is compatible with 1911Nighthawk Custom Nighthawk Thumb Safety Single Side Stainless Steel