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Sightmark
Overview
The Sightmark Ultra Shot A-Spec Reflex Red Dot Sight is a red dot optic constructed from 6061-T6 aluminum with a matte finish. It features a red reticle and provides 1 MOA adjustments for windage and elevation. The optic mounts via a Picatinny interface and is powered by a CR123A 3V Lithium battery, offering a battery life of 1,001 - 5,000 hours. GPP build data shows this optic frequently appears in .308 Win caliber builds with a carbine-length gas system. Builders on GPP commonly pair this optic with Aero Precision gas blocks, charging handles, buffer kits, and dust covers, as well as the Advanced Technology AR-15 X1 Recoil Reducing Pistol Grip.
Pros
- +Picatinny is the most common mounting interface in the GPP catalog, ensuring broad compatibility.
- +Red dot optics are the most common optic type in the GPP catalog.
- +The red reticle is the most common reticle color in the GPP catalog.
- +The 1,001 - 5,000 hour battery life is the second most common in the GPP catalog.
Trade-offs
- −This product uses a CR123A 3V Lithium battery, while most products in this category use a CR2032 3V Lithium Coin battery.
- −This product uses 1 MOA adjustments, while most products in this category use 1/2 MOA adjustments.
- −This product uses 6061-T6 Aluminum, while most products in this category use a broader "Aluminum" designation.
Specifications
Available Merchants(5)
Prices checked
Price Alert
Price and stock
Availability is good for the Sightmark Ultra Shot A-Spec Reflex Red Dot Sight: it was in stock at one retailer or another nearly every time we checked in October 2026, and today 4 of the 5 retailers we track have it in stock. Buying today, the lowest price is $179.97 at MidwayUSA, which matches the best price we saw in October.
Prices checked · refreshed daily across 37 retailers
Not sure which optic to pick?
We ranked every optic by how often it shows up in real builds on GunPartPicker.
Read the guide: AR-15 Red Dot & Optic Guide →Check it against the live catalog:
Frequently Built With
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Builds Featuring This Part
See all builds →Builds in the community that include the Sightmark Ultra Shot A-Spec Reflex Red Dot Sight
| Build | Parts | Total |
|---|---|---|
 | 27 | $1872.41 |
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