EOTech HWS 512.A65 — Holographic Weapon Sight
Overview
The EOTech HWS 512.A65 is the most popular holographic sight in the EOTech lineup — the Close Combat Optic chosen by USSOCOM (US Special Operations Command), offered in its AA-battery configuration, the most practical and cost-effective platform to operate long term.
Unlike traditional reflex red dots, EOTech's HWS holographic technology projects the reticle directly into the shooter's field of view, delivering ultra-fast target acquisition, unlimited eye relief, parallax-free operation, and perfect reticle overlay on moving targets. The 68 MOA / 1 MOA reticle (large enclosure ring + precision center dot) is one of the most intuitive and effective sight designs ever engineered for dynamic and CQB shooting.
The 512.A65 is the non-night-vision version of the EOTech HWS platform — for shooters who don't need NV modes, it offers the best price/performance ratio in the range. For use with night-vision equipment, see the 552 model.
Technical Specifications
- Optic type: 1x holographic sight (HWS — Holographic Weapon Sight)
- Magnification: 1x (no magnification)
- Reticle: 68 MOA (outer enclosure ring) + 1 MOA (precision center dot) — red reticle
- Viewing window: 30 x 23 mm (1.20" x 0.85")
- Field of view: 30 yards at 100 yards (28 m at 91 m), at 4" eye relief
- Eye relief: Unlimited
- Parallax: Parallax-free — no parallax error regardless of eye position
- Front window: 1/8" solid glass
- Rear window: 3/16" shatter-resistant laminate
- Optical coating: Anti-glare multi-coating
- Brightness settings: 20 levels, rear buttons, 110,000:1 brightest-to-dimmest ratio
- Power source: 2x AA 1.5V batteries (lithium, alkaline, or rechargeable)
- Battery life (lithium): 1,000 continuous hours at nominal setting 12
- Battery life (alkaline): 600 continuous hours at setting 12
- Auto shut-off: 8 hours (programmable to 4 hours)
- Low-battery indicator: Flashing reticle on startup
- Night-vision compatibility: NO (choose model 552 for NV)
- Mount: Integrated, Picatinny MIL-STD-1913 (1"), tool-less knob clamp
- Zero retention: Repeatable to 1 MOA after remounting
- Windage/elevation adjustment: 0.5 MOA per click (1/2" at 100 yards)
- Adjustment range: ±40 MOA
- Waterproof: Submersible to 3 m (10 ft), fog-proof internal optics
- Operating temperature (lithium): -40 to +65°C (-40 to 150°F)
- Operating temperature (alkaline): -29 to +60°C (-20 to 140°F)
- Length: 131 mm (5")
- Width: 49 mm (1.8")
- Height: 60 mm (2.25")
- Weight: 326 g (11.5 oz)
- Finish: Matte black, non-reflective coating
- Made in USA — Michigan
Key Benefits
- HWS holographic technology: not a standard LED projection — the reticle is optically reconstructed in the field of view, delivering some of the fastest target acquisition on the market and perfect reticle overlay on the target.
- Legendary 68 MOA / 1 MOA reticle: the large enclosure ring captures the target in a fraction of a second, the 1 MOA center dot ensures precision out to 300 m. A design proven over decades of operational use.
- Chosen by USSOCOM: the reference CCO (Close Combat Optic) of US Special Operations — operational validation unmatched in this segment.
- Universal AA power: AA batteries are available worldwide for pennies. No dependence on proprietary or expensive CR123 batteries.
- Unlimited eye relief + parallax-free: both eyes open, shoot at maximum speed with no head repositioning — essential for dynamic shooting.
- Tool-less mounting: knob clamp on Picatinny rail — install, remove, and swap between rifles in seconds.
- 20 brightness levels (110,000:1 ratio): perfectly readable in bright sunlight and low-light environments alike.
- Made in USA ruggedness: aluminum housing, submersible to 3 m, -40 to +65°C operating range with lithium batteries — built for intensive duty use.
- Broad platform compatibility: AR-15, AR-10, PCC, tactical shotgun, .22 LR carbine — universal on any Picatinny rail.
Use Cases & Context
- Dynamic sport shooting: IPSC/USPSA rifle, 3-Gun, PCC competition, local matches — the EOTech holographic is a historic choice in these disciplines.
- Tactical shooting and CQB: the 68/1 format is optimized for fast multi-target engagement at close and mid range.
- Professional training: LEO, security agencies, tactical schools — a field-proven optic.
- Mounting on AR-15, 9mm PCC, .22 LR carbine, tactical shotgun: full versatility thanks to the universal Picatinny rail.
- Stand hunting / small-game drives: fast acquisition, reticle visible in low light, compatible with authorized semi-auto platforms.
- Civilian training and recreation: intuitive optic, immediate learning curve — ideal for shooters new to red-dot / holographic sights.
What's Included
- 1 EOTech HWS 512.A65 holographic sight
- 2 AA batteries (initial installation)
- Integrated Picatinny tool-less mount
- Owner's manual
- EOTech manufacturer warranty card





