Holosun HS503R Micro Red Dot Sight 1x with Selectable Reticle & Picatinny Mount OptionsHolosun$219.93
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Holosun
The Holosun HS515GM is a heavy-duty red dot sight built for shooters who demand reliability on patrol, in competition, or in the field. This micro optic pairs a crisp 2 MOA dot with a 65 MOA circle—flip between them instantly depending on your distance and target size. The side-mounted battery design keeps the top rail uncluttered, and Holosun's Shake Awake technology puts the sight to sleep when it detects no motion, then wakes it instantly with the slightest movement. A single CR2032 battery can power the 2 MOA dot for up to 5 years, so you're not swapping cells constantly.
The HS515GM ships with a Picatinny quick-release mount set to lower 1/3 co-witness height—that puts the dot in line with standard iron sights on most modern rifles. Clear flip-up lens covers keep the optic protected in storage or during rough transport, and the included kill flash filter tamps down glint. The matte black finish is durable and won't catch light or draw unwanted attention downrange.
This is the kind of sight that works equally well on a duty carbine, a 3-gun rifle, or a home-defense AR. Holosun's reputation for building glass that holds zero and functions flawlessly across temperature swings makes the HS515GM a solid choice if you want proven reliability without the premium price tag of boutique brands.
| Brand | Holosun |
| Model | HS515GM |
| Magnification | 1x |
| Reticle Options | 2 MOA dot, 65 MOA circle dot (selectable) |
| Mount Type | Picatinny quick-release |
| Mount Height | Lower 1/3 co-witness |
| Battery | CR2032 (side-mounted) |
| Battery Life (2 MOA) | Up to 5 years |
| Finish | Matte black |
| Included Accessories | Picatinny quick-release mount, flip-up lens covers, kill flash filter |
Yes. The included Picatinny mount is preset for lower 1/3 co-witness height, which aligns the red dot with standard iron sights on most AR-pattern rifles and other modern firearms.
On the 2 MOA dot setting, a single CR2032 battery can run for up to 5 years. Shake Awake technology extends battery life by powering down the optic when no motion is detected, then instantly reactivating when you move.
The HS515GM comes with a Picatinny quick-release mount, flip-up lens covers, and a kill flash filter. Everything you need to mount and protect the sight.
Yes. The HS515GM features a selectable reticle—you can instantly flip between the 2 MOA dot alone or the 2 MOA dot with a 65 MOA circle, depending on your shooting distance and target.
Holosun
The Holosun HS515GM is a heavy-duty red dot sight built for shooters who demand reliability on patrol, in competition, or in the field. This micro optic pairs a crisp 2 MOA dot with a 65 MOA circle—flip between them instantly depending on your distance and target size. The side-mounted battery design keeps the top rail uncluttered, and Holosun's Shake Awake technology puts the sight to sleep when it detects no motion, then wakes it instantly with the slightest movement. A single CR2032 battery can power the 2 MOA dot for up to 5 years, so you're not swapping cells constantly.
The HS515GM ships with a Picatinny quick-release mount set to lower 1/3 co-witness height—that puts the dot in line with standard iron sights on most modern rifles. Clear flip-up lens covers keep the optic protected in storage or during rough transport, and the included kill flash filter tamps down glint. The matte black finish is durable and won't catch light or draw unwanted attention downrange.
This is the kind of sight that works equally well on a duty carbine, a 3-gun rifle, or a home-defense AR. Holosun's reputation for building glass that holds zero and functions flawlessly across temperature swings makes the HS515GM a solid choice if you want proven reliability without the premium price tag of boutique brands.
| Brand | Holosun |
| Model | HS515GM |
| Magnification | 1x |
| Reticle Options | 2 MOA dot, 65 MOA circle dot (selectable) |
| Mount Type | Picatinny quick-release |
| Mount Height | Lower 1/3 co-witness |
| Battery | CR2032 (side-mounted) |
| Battery Life (2 MOA) | Up to 5 years |
| Finish | Matte black |
| Included Accessories | Picatinny quick-release mount, flip-up lens covers, kill flash filter |
Yes. The included Picatinny mount is preset for lower 1/3 co-witness height, which aligns the red dot with standard iron sights on most AR-pattern rifles and other modern firearms.
On the 2 MOA dot setting, a single CR2032 battery can run for up to 5 years. Shake Awake technology extends battery life by powering down the optic when no motion is detected, then instantly reactivating when you move.
The HS515GM comes with a Picatinny quick-release mount, flip-up lens covers, and a kill flash filter. Everything you need to mount and protect the sight.
Yes. The HS515GM features a selectable reticle—you can instantly flip between the 2 MOA dot alone or the 2 MOA dot with a 65 MOA circle, depending on your shooting distance and target.
