Material: Stainless Steel Finish: Natural Overall Length: .525" Hole Diameter: .257" Reverse Plugs from EGW are designed for easy installation and increased performance. Made from stainless steel, the rounded shoulder is extended for added support with no exposed area where cracks can occur. A reverse plug is used in comp guns and bull barreled pistols where there is no bushing to retain the spring. This plug is for 3" barrel length only. Must be installed by a competent gunsmith. Measure the length of the dust cover where the plug sits to confirm this is the correct plug for guns not listed below. This plug fits: Mfg: Egw