Element Optics THEOS 2–10×42 FFP — a compact, capable mid-power for modern precision shooting

ELEMENT OPTICS THEOS 2–10×42 FFP — A Compact, Capable Mid-Power for Modern Precision Shooting

Element Optics quietly raised the bar for mid-power variable optics with the Theos 2–10×42 FFP. Built around a 34 mm main tube and loaded with features normally reserved for larger, heavier scopes, the Theos is aimed squarely at shooters who want precision, low weight, and tactical functionality in a compact package — think PRS/NRL, law-enforcement patrol rifles, and hunters/stalkers who want a true first-focal-plane fighting/precision optic.

Below, we walk through the headline features, the reticle and turrets, and the complete spec set so you can quickly decide whether the Theos belongs on your next build.

Why the Theos matters

Truly compact, genuinely capable: At just 290 mm (11.4”) and 819 g (28.9 oz), the Theos is shorter and lighter than many 1–6 / 1–8 and 3–15 class scopes — yet it keeps a 34 mm tube and a broad adjustment envelope.

First focal plane reticle with diffractive illumination: The MPR-1D diffraction grating reticle stays true across magnification changes and adds an illuminated aim point that’s designed to be visible in low light without washing out fine holdover marks.

Battle-ready mechanicals: Features like RevTrak turrets, a tool-free resettable turret, zero-stop, and a robust parallax adjustment make this a practical optic for time-critical engagements and precision work alike.

Optical quality: Element spec’d ED (extra-low dispersion) glass to limit chromatic aberration and keep the image crisp across the zoom range.

Key features at a glance

• First focal plane (FFP) MPR-1D diffraction-grating illuminated reticle.

• Wide 2–10× magnification: fast transitions between close and extended distances.

• 42 mm objective, ED glass elements for improved clarity and color fidelity.

• 34 mm main tube for extra internal adjustment and mount flexibility.

• RevTrak turrets with integrated revolution indicator and zero-stop; tool-free resettable turret.

• Quick-set parallax and low-profile design for fast, repeatable adjustments.

• Robust environmental spec: waterproof, fog-proof, and extremely shock resistant.

The reticle — MPR-1D

The MPR-1D shown with the Theos combines a clear central aiming point (illuminated via diffraction grating) with a graduated pattern of dots and stadia for rapid holdover and range compensation in the 2–10× zoom range. Because it’s FFP, the subtensions remain accurate at any magnification, which is especially useful for shooters who dial or hold at varying engagement distances.

Full specifications

• Magnification: 2–10×

• Objective lens diameter: 42 mm

• Focal plane: First focal plane (FFP)

• Reticle: Diffraction grating illuminated (MPR-1D)

• Lenses: Extra-low dispersion (ED) glass

• Body tube diameter: 34 mm

• Length: 290 mm (11.4”)

• Weight: 819 g (28.9 oz)

• Waterproof: 3 m 30 min

• Fogproof: Yes

• Shockproof: 1000G (50 BMG) — 1000 times

• Parallax adjustment range: 10 m – ∞

• Elevation adjustment range: 43 MRAD

• Windage adjustment range: 29 MRAD

• Click value: 0.1 MRAD (1/10 MRAD), 12 MRAD per revolution

• Eye relief: 83 mm – 97 mm (approx. 3.2” – 3.8”)

• Field of view: 19 m – 3.8 m @ 100 m (57.0 ft – 11.4 ft @ 100 yd)

Who should consider the Theos?

• Precision rifle competitors (PRS / NRL): FFP reticle + large internal adjustment + robust turret system make the Theos a solid mid-range contender for match rifles where weight and compactness matter.

• Tactical / duty shooters: Compact length, RevTrak/zero-stop turrets, and illuminated aim point give fast acquisition and repeatable mechanicals for patrol or special-ops style setups.

• Hunters & stalkers: The 2–10× zoom provides rapid close work while still offering enough magnification for mid-range precision shots; lightweight and compact for mobile hunting setups.

• Anyone who wants an all-round “do-it-all” optic: The combination of ED glass, FFP reticle, and a 34 mm tube makes it flexible for many rifle types and cartridges.

Final thoughts

Element Optics’ Theos 2–10×42 FFP is a compact mid-power that doesn’t compromise on features. It brings together a useful zoom range, an FFP diffraction-illuminated reticle, precision turret mechanics, and a rugged platform in a package that’s lighter and shorter than many competitors. For shooters seeking a capable precision optic paired with a lightweight, maneuverable rifle, the Theos is worth a close look.