oSight · SE Series · DeltaPoint Pro Footprint
Osight SE DPP Enclosed Red Dot Sight
An enclosed-emitter pistol red dot built on the Leupold DeltaPoint Pro (DPP) footprint, so it bolts straight down to a DPP-cut slide with no adapter plate stacked underneath.
The sealed housing keeps rain, lint and pocket debris off the emitter, the 0.91 x 0.71 in window gives you a full-size sight picture, and the multi-reticle system lets you run a 2 MOA dot, a 32 MOA circle, or both together. Side-loading CR1620 battery, 7075-T6 aluminum body, IPX7.
Optic typeEnclosed emitter red dot
FootprintLeupold DeltaPoint Pro (DPP)
Reticle2 MOA dot, 32 MOA circle, or both
Window0.91 x 0.71 in (23 x 18 mm)
BatterySide-loading CR1620, up to 75,000 h
Build7075-T6 aluminum, IPX7 waterproof
Before you order: this optic uses the DeltaPoint Pro footprint. Your slide has to be cut for DPP, or wear a DPP adapter plate. An RMR or RMSc cut will not accept it. Not sure what your slide is cut for? Ask us and we will check your slide. Key Features
SEALED
Enclosed emitter, nothing to block
There is no open channel between the emitter and the lens, so rain, snow, lint and carry debris cannot creep in and dim or split the dot. That is the whole reason to run an enclosed optic on a working pistol.
WINDOW
0.91 x 0.71 in of glass
The aspherical, anti-reflective coated lens is parallax-free with unlimited eye relief, and the tall window makes the dot easy to find on the draw and easy to track in recoil.
RETICLE
Three sight pictures, one optic
Run the 2 MOA dot alone for precision, the 32 MOA circle alone for speed up close, or the dot inside the circle when you want both. You switch modes with the buttons, not with a different optic.
MOUNTING
Direct DeltaPoint Pro fit
On a DPP-cut slide the optic sits flat on the slide with no plate in the stack, which means a lower dot, fewer fasteners and one less thing to shoot loose.
BATTERY
Side-loading CR1620
The battery tray loads from the side, so you never break the optic loose from the slide and never re-zero to change a battery. Up to 75,000 hours in the dot-only mode.
CONTROLS
8 daylight settings plus 2 NV
Ten brightness levels total, including two night-vision settings, with motion activation that wakes the dot when the pistol moves and shuts it down when it sits still.
Which reticle mode fits your shooting?
The SE DPP is the same optic in three configurations. Most shooters settle on one and leave it there, so it is worth thinking about which one matches the way you actually shoot.
- 2 MOA dot only The precision setting. Best for slow fire, small or distant targets, and anyone who finds a big circle busy.
- 32 MOA circle only The speed setting. The circle is fast to pick up on the draw at close range and forgiving when your presentation is not perfect.
- Dot inside the circle The compromise most competitors run: the circle finds the target, the dot refines the shot.
- Night vision settings Two dedicated NV levels sit below the lowest daylight setting for use behind a device.
- Motion activation The dot wakes on movement, so the optic can live on a carry or duty gun without being switched on and off.
Built for DeltaPoint Pro cut slides
The DPP footprint is wider and flatter than the RMR pattern, and it is what we mill when a customer wants a large-window optic sitting as low as the slide allows. If your slide is not cut yet, we cut it here in house.
Specs at a Glance
| Specification | Osight SE DPP |
|---|
| Optic type | Enclosed emitter reflex sight |
| Footprint | Leupold DeltaPoint Pro (DPP) |
| Reticle | 2 MOA dot and 32 MOA circle, switchable (dot only, circle only, or both) |
| Reticle color | Red, 650 nm |
| Window size | 0.91 x 0.71 in / 23 x 18 mm |
| Lens | Aspherical, anti-reflective coated, parallax-free, unlimited eye relief |
| Adjustment per click | 1 MOA |
| Windage and elevation travel | Plus or minus 35 MOA |
| Brightness settings | 8 daylight, 2 night vision, with motion activation |
| Battery | CR1620, side-loading (no need to remove the optic) |
| Battery life | Up to 75,000 hours (mode 3, dot only) |
| Housing | 7075-T6 aluminum |
| Waterproof rating | IPX7 |
| Dimensions | 1.83 x 1.12 x 1.11 in / 46.4 x 28.5 x 28.2 mm |
| Weight | 1.34 oz / 38 g |
| Warranty | Lifetime warranty through Osight |
| Manufacturer part number | OSIGHTSEDPP |
Frequently Asked Questions
Will the Osight SE DPP fit an RMR-cut slide?
No. The SE DPP uses the Leupold DeltaPoint Pro bolt pattern and recoil lugs, which is a different footprint from the Trijicon RMR and from the RMSc pattern. It needs a slide cut for DPP or a plate that converts your slide to the DPP footprint.
Do I need an adapter plate?
Not on a slide that is directly cut for DeltaPoint Pro; the optic mounts flat to the slide. On an optics-ready slide that ships with plates, you would use that maker DPP plate.
Will my irons co-witness?
Standard-height sights sit too low behind an enclosed optic this tall. If you want to see your irons in the window, plan on suppressor-height (tall) front and rear sights.
Do I have to re-zero when I change the battery?
No. The CR1620 loads from the side of the housing, so the optic never comes off the slide and the zero is not disturbed.
Is it waterproof enough for carry and duty use?
It is rated IPX7 and the emitter is fully enclosed, so rain, sweat and snow are not a problem. Rinse it, dry it and check your screw torque as part of normal maintenance.
What is in the box?
The optic, mounting hardware, a lens cloth and the manual. Mounting screw length varies by slide, so confirm you have the right screws for your cut before you torque anything down.
Leupold and DeltaPoint Pro are registered trademarks of Leupold & Stevens, Inc. Trijicon and RMR are registered trademarks of Trijicon, Inc. Osight is a trademark of Osight Inc. Stonebridge Gunworks LLC is not affiliated with, sponsored by, or endorsed by these companies; the names are used only to describe fitment.
