EOTech's two main holographic weapon sights — the EXPS and the XPS — share the same fast holographic reticle but differ in body, controls and mounting. That decides which fits your build.
First, decode the model numbers
EOTech's naming looks cryptic and is actually systematic, which makes choosing much easier once you can read it.
The number after the family name tells you night-vision compatibility. An EXPS2 or XPS2 is a daylight-only sight. An EXPS3 or XPS3 adds night-vision-compatible brightness settings, which are dim enough to use behind image intensifiers. If you do not own night vision, the 2-series saves you money for no practical loss.
The number after the dash tells you the reticle. A -0 is the standard 68 MOA ring with a single 1 MOA aiming dot. A -2 gives you the same 68 MOA ring with two 1 MOA dots stacked vertically, the lower dot acting as a longer-range holdover. We also stock a -4 and the EXPS3-DCR, plus green-reticle versions such as the XPS2-0GRN.
So an EXPS3-0 is a night-vision-capable sight with the standard single-dot reticle, and an XPS2-2 is a daylight-only sight with the two-dot reticle. That is the whole system.
EXPS: built to run a magnifier
The EXPS uses a quick-detach lever mount, side-mounted buttons (so a magnifier behind it does not block the controls), and a taller height that co-witnesses cleanly with a flip-to-side G-series magnifier. If you plan to add magnification, the EXPS is the natural choice — see G33 vs G43 vs G45.
The side buttons are a bigger deal than they sound. On the XPS the controls sit at the rear, which is precisely where a magnifier goes. Put a magnifier behind an XPS and you can find yourself reaching around it to change brightness. EOTech moved the buttons on the EXPS specifically to solve this, and it is the main reason the EXPS is the one bundled into their magnifier kits.
The quick-detach lever is the other practical difference. It lets you pull the sight off and put it back without losing zero — useful if you swap optics between rifles, or need to get at a backup sight underneath.
XPS: lighter and lower
The XPS is more compact and lighter, with rear-mounted buttons and a lower, non-QD mount. It is ideal when you want the smallest, lightest holographic setup and are not running a magnifier — a clean red-dot-style profile on a carbine.
It also uses a single battery rather than the EXPS's twin-battery arrangement, which is part of why it is shorter. Fewer batteries means less runtime, but it also means less weight and a smaller footprint on the rail — worth it on a short, light build where every inch of rail is wanted for something else.
What they have in common
Both use the same holographic reticle technology, and that is the reason to buy either. A holographic sight builds its reticle from a laser-illuminated hologram rather than projecting an LED off a coated lens. Two practical consequences follow.
The reticle stays usable if the front window is damaged or partially obscured — a holographic sight will keep working with a cracked or muddy window where a reflex sight's dot can be blocked entirely.
And holographic reticles often look cleaner to shooters with astigmatism. An LED dot smears into a comma or starburst for astigmatic eyes; a hologram frequently does not. If you have tried red dots and been frustrated, this alone can be worth the price difference. See red dot vs holographic sight.
The shared cost is battery life. Holographic sights draw considerably more power than a modern LED red dot, and neither of these will run for years on a cell. Both have an auto-shutdown, and both are sights you switch on rather than leave on indefinitely.
How to choose
- EXPS if you want (or might add) a magnifier, prefer a QD mount, or want night-vision-compatible versions.
- XPS if you want the lightest, lowest-profile holographic sight and no magnifier.
The question that settles it for most people is the magnifier. If there is any chance you will add one, buy the EXPS now — retrofitting means replacing the sight, not just adding the magnifier. If you are certain you want a minimal 1x setup and nothing else, the XPS is lighter, lower and cheaper, and nothing about it is a compromise for that job.
If you are buying a sight and magnifier together, look at the HHS kits, which pair an EXPS with a G33 already matched for height.
Deciding between a holographic sight and a plain dot in the first place? Read red dot vs holographic sight, and browse the full EOTech collection.