Apex Optic Mount for Holosun 509T Optic to Glock MOS Pistols

Description

If you run a Glock MOS pistol and have been looking for a way to mount a Holosun 509T, this Apex Optic Mount is the solution you need. Priced at just $60, it’s a straightforward, durable piece of hardware designed to get that optic locked onto your slide without any guesswork or extra modifications.

This mount is machined from a solid billet of steel and finished with a black oxide coating. That means it holds up to holster wear, sweat, and the kind of abuse a practical shooter or hunter puts on their gear. It’s not plastic. It’s not fragile. It’s built to stay put under recoil and keep your zero consistent, whether you’re running drills at the range, carrying concealed, or hunting in variable weather.

The mount is made specifically for slides that already have the factory GLOCK MOS cut. You don’t need to send your slide off for milling or buy an aftermarket slide. This plate mounts directly to the existing MOS footprint on your Glock. It accepts the Holosun 509T optic directly, so you’re not stacking adapters or dealing with loose tolerances.

Here’s what you get in the package and what to expect during installation:

• Direct fit for Glock MOS slides. Works with any Gen 3, Gen 4, or Gen 5 Glock that has the factory MOS cut. No filing, no fitting, no extra parts required.
• Steel construction. The billet steel body and black oxide finish provide corrosion resistance and long-term durability. This mount will outlast cheap aluminum plates that can strip or warp.
• Mounting screws included. You get the correct screws for attaching the mount to the slide and for securing the 509T to the mount. No hunting down hardware at the last minute.
• Recommended installation torque. Apex specifies 15 in-lb for the mounting screws. This keeps everything tight without risking damage to the screw heads or the threads in your slide.
• Clean before install. Apex recommends you clean the slide surface before mounting. This removes oil, carbon, or debris that could prevent the plate from sitting flush.

For the concealed carrier, this mount keeps your 509T low enough to co-witness with standard-height iron sights on most MOS slides. For the hunter, the steel construction means you’re not worrying about the mount cracking if you bump it on a tree stand or truck door. For the practical shooter, the direct mount eliminates the slop you get with some universal plates, so your dot stays where you put it.

If you’re running a Glock MOS