OSA Glock Optic Cut – Leupold DeltaPoint Pro
Upgrade your Glock with a direct-milled Leupold DeltaPoint Pro optic cut for the strongest, lowest-profile mounting solution available. By machining the optic directly into your factory slide, your red dot sits lower than adapter plates or factory MOS systems, providing improved durability, a lower bore-to-optic height, and a more natural sight picture.
Every slide is professionally machined, refinished to your specifications, and returned ready to mount your optic with the confidence that it will maintain zero under hard use.
Note: This optic cut is not compatible with the SIG Sauer Romeo2 or EOTECH EFLX.
Service Includes
- Precision Leupold DeltaPoint Pro optic cut
- Complete slide disassembly and reassembly
- Iron sight installation (some limitations apply)
- New striker channel liner installed on all refinished slides
- (2) Sets of 4-40 x 5/8" T10 Torx mounting screws
- Precision-machined recoil/indexing posts
- Choice of finish:
- Optic Cut Only (Cold Blue)
- Single Color Cerakote
- Camo Pattern Cerakote
Rear Sight Options
Choose the configuration that best fits your setup:
- No Rear Dovetail (for use with the Leupold DeltaPoint Pro rear sight attachment)
- Rear Sight in Front of the Optic
- Rear Sight Behind the Optic (10mm and .45 ACP Glock slides only)
Precision Machining
Unlike optics mounted on adapter plates, the OSA DeltaPoint Pro Optic Cut allows the optic to sit deep within the slide for maximum strength and a lower mounted height.
Additional front and rear indexing bosses are machined directly into the slide around the mounting screw holes. These precision recoil lugs help absorb recoil forces and maintain zero even after removing and reinstalling the optic.
- Optic Cut Depth: 0.145"
Iron Sight Compatibility
Depending on your preferred co-witness height, we recommend the following combinations:
Lower 1/4 Co-Witness
- AmeriGlo 5XL Sight Set (.407" Front / .507" Rear)
- AmeriGlo .407" Front with Leupold Rear Sight Attachment
Lower 1/3 Co-Witness
- AmeriGlo 7XL Sight Set (.450" Front / .554" Rear)
- AmeriGlo .450" Front with Leupold Rear Sight Attachment
Our Thoughts
A direct-milled optic cut is one of the best upgrades you can make to a Glock.
Compared to adapter plates or factory MOS systems, a direct-milled slide positions the optic significantly lower, improving presentation, increasing screw engagement, and reducing the chances of losing zero under heavy use.
The DeltaPoint Pro has long been regarded as one of the premier duty pistol optics, and machining the slide specifically for its footprint ensures the strongest and most repeatable mounting solution possible.
We also replace the striker channel liner on every slide that receives refinishing. It's a small detail that often gets overlooked, but it's part of ensuring your slide is returned in excellent working condition.
Turnaround & Shipping
- Current Lead Time: Approximately 2–3 Weeks
- Please include a copy of your order invoice when shipping or dropping off your slide.
Professional Machining
While final assembly, inspection, and customer service are handled through OSA, the optic machining itself is performed by our trusted partners at Battle Werx, one of the industry's most respected slide machining specialists. Their precision machining, combined with OSA's finishing and quality control, ensures your slide is completed to the highest standards.
Patent Information
This service incorporates patented optic cut technology pioneered by ZEV Technologies (U.S. Patent RE47335), providing an industry-proven mounting interface designed for maximum strength, repeatability, and long-term reliability.
