Vortex Defender-ST 3MOA Micro Red Dot w/ Delta Point PRO Footprint - DFST-MRD3
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Vortex Optics
Overview
The Vortex Defender-ST 3MOA Micro Red Dot is a compact red dot sight designed to enhance your accuracy with its 3 MOA dot size, providing a precise aiming point for quick target acquisition. It features a Picatinny mounting interface, making it easy to attach to a variety of rail systems, while the red reticle color ensures visibility in different lighting conditions. This optic is commonly found on builds with a mid-length gas system and chambered in 5.56 NATO, making it a solid choice for those looking for reliable performance in tactical and competitive scenarios.
Specifications
Vortex Defender-ST 3MOA Micro Red Dot w/ Delta Point PRO Footprint - DFST-MRD3
Available Merchants(6)
Prices checked
Price Alert
November 2026 so far on GunPartPicker
Vortex Defender-ST 3MOA Micro Red Dot w/ Delta Point PRO Footprint - DFST-MRD3 is the sixth most added optic on GunPartPicker so far in November 2026, behind the EOTECH EXPS3-2 HWS and G43 Magnifier, with about 4% of all optics added to builds. Down from #4 in October. Builds with this optic are mostly chambered in 5.56 NATO (74%), split between mid-length (57%) and carbine-length (25%) gas systems, and mostly AR-15 (90%).
Availability is good: it was in stock at one retailer or another nearly every time we checked in October 2026, and today all 6 retailers we track have it in stock. Prices barely moved in October 2026, holding around $299.99, with no real sale all month. Buying today, the lowest price is $299.99 at Brownells, which matches the best price we saw in October.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 37 retailers
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Frequently Built With
The part most often added in each category by hundreds of builds that include this one
Smith & Wesson M&P15 Complete Lower 5.56x45mm/.223 Remington, Black - 812002
Geissele Automatics AR-15 SSA-E X Lightning Bow Trigger
Daniel Defense Collapsible Mil-Spec Buttstock, Brown - 21-091-04179-011
Bravo Company Manufacturing 5.56 NATO Mid-Length Bhf AR-15 Barreled Upper - MCMR-15 - 16"
SilencerCo Velos LBP 556 Rifle Suppressor, Black
Radian Raptor Charging Handle & Talon Safety Selector Combo - OD Green
Build Configuration Breakdown
Aggregated and anonymized data showing how builders use this product
PlatformBased on real build data showing which platform (AR-15, AR-10, AR-9) builders pair with this product.
CaliberBased on real build data showing which calibers builders choose alongside this product.
Gas SystemBased on real build data showing which gas system lengths builders use with this product.
Builds Featuring This Part
See all builds →Builds in the community that include the Vortex Defender-ST 3MOA Micro Red Dot w/ Delta Point Pro Footprint - DFST-MRD3
| Build | Parts | Total |
|---|---|---|
 | 30 | $6970.91 |
 | 27 | $4283.60 |
 | 14 | $5023.67 |
| 14 | $2426.70 |
 | 8 | $1271.46 |
 | 15 | $4548.76 |
 | 15 | $2481.17 |
| 19 | $5176.86 |
 | 19 | $2664.56 |
 | 28 | $3623.37 |
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