Brownells Complete Slide Assembly With Threaded Barrel For Glock 17

The Brownells Complete Slide Assembly with Threaded Barrel for Glock 17 is a fully assembled upper half built for shooters ready to either upgrade a factory Gen3 G17 or complete a custom pistol build from scratch. This isn't just a bare slide—it arrives complete with a match-quality 416 stainless steel barrel, front and rear iron sights, internal small parts, and a recoil spring assembly already installed. The threaded barrel features standard ½"-28 tpi threading, making it compatible with most common suppressors and sound moderators. Since the work is done, you simply mate it to a compatible frame and you're ready to shoot.

Built from 416 stainless steel billet and finished with a black Nitride coating, this slide is machined to Glock factory specifications on the interior while maintaining the durability needed for hard use. The slide comes pre-cut with a low-profile mounting slot for Trijicon RMR footprint reflex sights—a serious upgrade for shooters who want to run a red dot as their primary sight. If you're not mounting an optic right away, a reinforced polymer cover plate fills the slot and keeps things clean. The iron sights function as either your primary aiming solution or a reliable backup when paired with an optic.

Manipulation is smooth thanks to front and rear cocking serrations machined into the slide. The rear serrations are wide and shallow for solid purchase when racking, while the front set lets you press-check the chamber from awkward positions. Whether you're building a suppressor-ready pistol, refreshing an aging duty gun, or assembling a tack-driver for the range, this assembly cuts your build time and delivers professional fit and finish out of the box.

Key Features

• Fully assembled upper—barrel, sights, small parts, and recoil spring installed
• Match-quality 416 stainless steel barrel with ½"-28 tpi threaded muzzle for suppressors
• 416 stainless steel slide with durable black Nitride finish
• Factory Glock specifications internally; fits Gen3 G17 and compatible aftermarket frames
• Pre-cut RMR footprint optic mounting slot with polymer cover plate included
• Standard-height front and rear iron sights
• Front and rear cocking serrations for confident manipulation from any angle

Specifications

Frequently Asked Questions

What do I need to install this slide on my Glock 17?

This is an upper assembly only. You'll need a compatible Glock 17 Gen3 frame (factory or aftermarket) and a channel liner, which Brownells notes requires a press fit and installation tool. Brownells part #777-100-017 is their recommended channel liner for these slides.

Can I mount a red dot sight to this slide?

Yes. The slide has a pre-cut mounting slot milled for reflex sights that use the Trijicon RMR footprint. A polymer cover plate is included if you want to fill the slot and use only the iron sights.

Will this work as a suppressor-ready upper?

Yes. The threaded barrel includes standard ½"-28 tpi threads at the muzzle, which is the common specification for Glock-compatible suppressors and sound moderators.

Does this assembly come ready to install?

Yes. The slide ships fully assembled with the barrel, sights, internal parts, and recoil spring already installed. You're assembling a pistol, not building a slide from components.