American Defense Quick-Detachable Picatinny-Style Mount for Holosun 509T Red Dot Sight
American Defense
The NCStar VISM SPD Dual Power Solar Red Dot Sight brings flexibility to any shooter who wants to run optics without worrying about battery life. This 1x red dot sight uses dual power sources—a solar cell on top that harnesses sunlight automatically, plus an AA battery for low-light and indoor use—so you're covered whether you're hunting in bright daylight or shooting at the range after work. The quick detach Picatinny mount locks down securely and removes fast, making it ideal for AR-15s and other platforms where you want to swap optics between guns or stow your rifle without the sight getting in the way.
The 2 MOA red dot is bright and easy to pick up, with five adjustable brightness levels when running on battery power. The sight sits at a standard 1.5" height above your AR rail, so it co-witnesses well with standard height iron sights. Unlimited eye relief means you can shoot from any position or shoulder angle without losing the dot—no tunnel vision, no hunting for the sight picture. The ruby lens coating reduces glare and helps the reticle pop even in harsh light. The LED is completely safe for your eyes and won't cause strain during extended shooting sessions.
If you're the type who prefers not to depend on batteries for every range trip or hunting season, the solar cell takes that variable off the table on sunny days. When clouds roll in or you're indoors, flip the electronic control panel to battery mode and adjust brightness to your preference. The red LED indicator shows you when the battery is powering the sight. This is a no-frills, reliable setup for hunters and shooters who value simplicity and redundancy in their optics.
| Magnification | 1x |
| Dot Size | 2 MOA |
| Dot Color | Red |
| Objective Diameter | 30mm |
| Mount Type | Quick Detach Picatinny (Locking) |
| Sight Height | 1.5" (AR-15 height) |
| Length | 4.0" |
| Weight | 11.7 oz |
| Lens Coating | Ruby |
| Battery Type | AA |
| Eye Relief | Unlimited |
| Brightness Levels | 5 (battery powered) |
Yes. The VISM SPD mounts to any Picatinny rail via its quick detach locking mount and sits at 1.5" height, which is the standard sight-over-bore height for AR-15s. It will co-witness with standard iron sights.
Absolutely. The solar cell only activates in sufficient sunlight, so indoors or at night you switch to AA battery power using the electronic control panel. You can adjust brightness across 5 levels depending on lighting conditions.
The sight automatically powers on via the solar cell whenever there is enough sunlight on the top-mounted solar panel. If you're indoors, shooting at dusk, or conditions are too dim, use the AA battery instead. You control battery power through the electronic control panel, which includes a red LED indicator to show when battery power is active.
The sight comes with the quick detach Picatinny mount. Note that international orders do not include the AA battery, so you may need to source one separately depending on your location.