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Sightmark
Overview
The SightMark T-3 3x Magnifier is designed to enhance your sighting system by providing a 3X magnification, allowing for improved target acquisition and accuracy at extended ranges. Its full-size aluminum construction ensures durability while the flip-to-side mount offers quick transitioning between magnified and unmagnified views, making it versatile for dynamic shooting situations. This magnifier is commonly found in builds utilizing a mid-length gas system and chambered in 5.56 NATO, making it a suitable choice for a variety of tactical applications.
Prices checked
SightMark T-3 3x Magnifier With LQD Flip To Side Mount was the tenth most added magnifier on GunPartPicker in October 2026. Builders have been adding it to their builds on GunPartPicker since February 2026. All time, it is the eighth most added magnifier on the site. Builds with this magnifier are mostly chambered in 5.56 NATO (78%), split between mid-length (58%) and carbine-length (27%) gas systems, and nearly all AR-15.
Availability is good: it was in stock at one retailer or another nearly every day in October 2026, and today 6 of the 8 retailers we track have it in stock. It dipped to $84.48 at Sportsman Warehouse for a stretch in October 2026, well under its usual $143.97, so sales do come around. Buying today, the lowest price is $84.48 at Sportsman Warehouse, which matches the best price we saw in October.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 37 retailers
We ranked every magnifier by how often it shows up in real builds on GunPartPicker.
Read the guide: AR-15 Magnifier Guide →The part most often added in each category by the builds that include this one
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Aggregated and anonymized data showing how builders use this product
Builds in the community that include the SightMark T-3 3x Magnifier With LQD Flip To Side Mount
| Build | Parts | Total |
|---|---|---|
 | 19 | $2313.77 |
 | 25 | $2171.84 |
 | 23 | $3481.71 |
 | 26 | $1784.91 |
 | 27 | $1807.55 |
 | 31 | $3526.67 |
 | 30 | $3119.40 |
 | 19 | $5058.31 |
1 global rating
Top reviews
Sightmark T-3 3x magnifier with LQD flip to side mount has clear glass with a sharp reticle pattern through the optic. LQD mount holds zero through detach. Battery isnt needed since its a passive magnifier. Solid budget magnifier.
