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The Brownells Iron Sight Slide for Glock 21® Gen3 is perfect for a D.I.Y. custom pistol. This slide has distinctive front and rear cocking serrations that aid in manipulating the slide, especially for quick chamber checks. The front and rear serrations are cut to the same depth as the Glock® factory slide serrations. Also, the top edges and the front around the muzzle area are chamfered to reduce the risk of snagging on clothing and to make holstering the pistol easier.

This slide accepts Gen3 Glock® 21 internal parts and has factory cuts for iron sights. It is made of sturdy machined 17-4 stainless steel and hardened to Rockwell “C” 41-44 for superb wear resistance. Additionally, it features a durable, non-reflective matte Black Nitride finish.The channel liner is not included, and you need to order it separately.

Like all Brownells slides, the Iron Sight model for Glock® 21 Gen3 is precision machined from solid 17-4 stainless steel billet and is compatible with any factory or aftermarket Gen3 internal components. There's a Glock® factory rear sight dovetail and a standard Glock® front sight tenon cut ready for any factory or aftermarket sights you choose. This slide is the perfect choice for a custom pistol build.

Brownells Gun Tech™ Note: Channel liner required for these slides; it is a press fit and requires a tool to install. We recommend #777-100-017.