AimO 3.5-10x40E-SF Rifle Scope

£69.95

3.5-10x variable magnification with a 40mm objective lens
Illuminated mil-dot reticle in red or green with brightness settings
Side focus (SF) parallax wheel for sharp images at range
Aircraft-grade aluminium alloy body, Leupold Mk4 inspired styling
Waterproof, shockproof and anti-fog sealed construction
Supplied with two-piece high mounts and flip-up dust covers
Multi-coated, scratch-resistant lenses for clear light transmission

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Description
Specification

Magnified optics on a budget

The Aim-O 3.5-10x40E-SF is a variable-power rifle scope that brings genuine magnified capability to airsoft DMR and sniper builds without a premium price tag. With 3.5x to 10x zoom and a 40mm objective, it lets you positively identify and engage targets across the full length of most UK skirmish sites.

Reticle that works in any light

The mil-dot reticle can be illuminated in red or green with adjustable brightness, powered by a CR2032 battery, so your aiming point stays visible against dark hedgerows or inside dim buildings. In good light you can run it unlit and still use the mil-dot references for holdover and ranging.

Clear, dialled-in images

A side focus (SF) parallax wheel lets you tune the image for razor-sharp clarity at different distances, all from your shooting position. Multi-coated, scratch-resistant lenses maximise light transmission and contrast, while three tool-free turrets handle windage and elevation.

Built for the field

Machined from aircraft-grade aluminium alloy with Leupold Mk4 inspired styling, the scope is sealed to be waterproof, shockproof and anti-fog. It ships with two-piece high mounts and flip-up dust covers, so it is ready to bolt straight onto your rail. Find more sights and upgrades in our airsoft accessories range.

Product information reviewed by James Smith. Every gun is checked & serviced by our Rochester workshop before dispatch.

General
Brand	Aim-O
Other
Magnification	3.5x to 10x variable
Tube diameter	30 mm
Reticle	Mil-dot, red/green illuminated
Focus	Side focus (SF) parallax adjustment
Included	Flip-up dust covers, mounts, allen key
Model	3.5-10x40E-SF
Objective lens	40 mm
Illumination power	CR2032 battery
Body material	Aircraft-grade aluminium alloy
Mount	Two-piece high mounts for 20/22mm Picatinny rail (included)
Sealing	Waterproof, shockproof, anti-fog
Lens coating	Multi-layer anti-reflective

Recommended upgrades & accessories

Frequently asked questions

Will this scope fit my airsoft rifle?

It comes with two-piece high mounts that clamp to a standard 20/22mm Picatinny or Weaver rail, which covers the vast majority of airsoft AEGs, DMRs and sniper rifles. The high mounts leave clearance for flip-up iron sights underneath.

How does the illuminated reticle work?

The mil-dot reticle can be lit in red or green with multiple brightness levels via a rotary dial, powered by a CR2032 battery. This helps the aiming point stand out against dark foliage or low-light CQB, while the reticle stays usable unlit in daylight.

What does the side focus do?

The side focus (SF) wheel adjusts parallax so the target and reticle sit on the same focal plane, giving a crisp sight picture at different ranges. It is easier to reach than a front objective adjustment when you are in a shooting position.

Is it tough enough for skirmish use?

The body is machined from aircraft-grade aluminium alloy and the scope is sealed to be waterproof, shockproof and anti-fog. It is built to handle the recoil and knocks of airsoft use and typical UK weather on the field.

What is included in the box?

You get the scope, two-piece high mounts with an allen key for fitting, and a pair of flip-up dust covers to protect the lenses between games. Just add a CR2032 battery for the illumination.

AimO 3.5-10x40E-SF Rifle Scope

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