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Perfect “Top Half” for a D.I.Y. Custom Pistol

The Brownells Iron Sight Slide for Glock 20® Gen3 enables you to build a custom Glock®-style pistol with a slide that sports distinctive front and rear cocking serrations. The front serrations aid in manipulating the slide, especially for quick chamber checks. Both the front and rear serrations are cut to the same depth as the Glock® factory slide serrations to ensure preservation of structural rigidity. 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.


Accepts Gen3 Glock® 20 internal parts

Factory cuts for iron sights

Sturdy machined 17-4 stainless steel

Hardened to Rockwell “C” 41-44 for superb wear resistance

Durable, non-reflective matte Black Nitride finish

Channel liner not included; please order separately (see note below)


Like all Brownells slides, the Iron Sight model for Glock® 20 Gen3 is precision machined from solid 17-4 stainless steel billet to factory specifications inside so it is compatible with any factory or aftermarket Gen3 internal components. Outside, 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 is the perfect companion “top-half” for a custom pistol build.

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