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EOTech
Overview
The EOTECH EXPS3-2 HWS is a holographic sight featuring a 0.5 MOA dot size, which allows for precise aiming and quick target acquisition. With a battery life of 501 to 1,000 hours powered by a CR123A 3V Lithium battery, this optic is designed for extended use without frequent battery changes. Its 1/2 MOA adjustments and night vision compatibility make it versatile for various lighting conditions, while the Picatinny mounting interface ensures easy attachment to your firearm. This optic is commonly found in builds with a carbine gas system and chambered in 5.56 NATO.
Specifications
Available Merchants(8)
Prices checked
Price Alert
November 2026 so far on GunPartPicker
EOTECH EXPS3-2 HWS and G43 Magnifier is the fifth most added optic on GunPartPicker so far in November 2026, behind the SIG Sauer Romeo 5XDR Gen II Red Dot Dot w/ Juliet 5 Micro Magnifier - SORJ5X201, with about 4% of all optics added to builds. Up from #6 in October. Builds with this optic are mostly chambered in 5.56 NATO (80%), split between mid-length (49%) and carbine-length (41%) gas systems, and mostly AR-15 (94%).
Availability is good: it was in stock at one retailer or another nearly every time we checked in October 2026, and today 7 of the 8 retailers we track have it in stock. It dipped to $1,165.19 at KY Gun Company for a stretch in October 2026, well under its usual $1,339, so sales do come around. Buying today, the lowest price is $1,165.19 at KY Gun Company, 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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Read the guide: AR-15 Red Dot & Optic Guide →Check it against the live catalog:
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
Bravo Company Manufacturing 5.56 NATO Mid-Length Bhf AR-15 Barreled Upper - MCMR-15 - 16"
Magpul AR-15 MOE Stock Collapsible Mil-Spec Black
Streamlight ProTac Rail Mount HL-X Laser 1000 Lumen Weapon Light with Tape Switch - CR123A
SilencerCo Velos LBP 556 Rifle Suppressor, Black
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 EOTECH EXPS3-2 HWS and G43 Magnifier
| Build | Parts | Total |
|---|---|---|
| Build 1 | 12 | $4551.12 |
 | 26 | $3838.92 |
 | 26 | $2084.06 |
 | 28 | $5562.13 |
 | 9 | $1761.75 |
 | 26 | $2856.93 |
| 23 | $4113.30 |
 | 26 | $3374.43 |
 | 28 | $4870.17 |
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