The Primary Arms SLx 1X MicroPrismT Scope with green ACSS Cyclops Gen II illumination (part number 710080, SKU PA-SLX-1XMP-H-CYCLOPS-G) is a 1x unmagnified prism scope with a 17 mm objective and a glass-etched ACSS Cyclops Gen II reticle illuminated in green, built on the H1/T1 micro-dot footprint and supplied with a 2.26 in mount. It is 2.48 in (63 mm) long, weighs 5.5 oz (156 g), adjusts in 1 MOA clicks with 120 MOA of windage and elevation travel, gives a 76.5 ft field of view at 100 yards (25.5 m at 100 m), and is sealed to IP67 and nitrogen-purged.
This variant stacks two advantages. The prism construction etches the reticle into the glass instead of projecting an LED, so shooters with astigmatism see a clean horseshoe and chevron rather than a smear — and the reticle keeps working with the illumination off. The green emitter then plays to the eye's peak sensitivity, which tells against foliage, hedgerows and the flat overcast light of a British winter, and is usually clear at a lower brightness setting than red would need.
How It Compares
This is the green-illuminated Cyclops Gen II version. The same optic is offered with red ACSS Cyclops Gen II illumination, with a simpler T-Dot reticle, and with the 9mm-specific green ACSS Gemini 9mm reticle. For a larger window and near-unlimited eye relief, step up to the GLx 1X MicroPrism with green ACSS Cyclops illumination. For magnification, see the SLx 3X MicroPrism with green ACSS Raptor illumination. Browse the Primary Arms prism scope range and all prism scopes, and read our guides to how prism scopes work, astigmatism and red dot sights and green versus red illumination.
Ideal For
- Shooters with astigmatism who want a micro-sized optic that stays sharp
- Deer stalking and woodland shooting, where a green reticle stands out against foliage
- Practical shotgun and 3-Gun, where a light, fast 1x optic decides the stage
- Night fox and vermin control at dusk, where a lower brightness setting suffices
Key Features
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Magnification: 1x unmagnified, 17 mm objective
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Reticle: ACSS Cyclops Gen II, etched into the glass, with a fast horseshoe, a precise centre and ranging features
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Astigmatism: The etched reticle is resolved through the optic's own focusing system, so it stays sharp for eyes that see LED red dots as a smear
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Footprint: H1/T1 micro-dot pattern, compatible with the wide range of mounts made for micro red dots, with a 2.26 in mount included
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Illumination: Green, 13 settings of which 3 are night-vision compatible, with AutoLive motion sensing, from one CR2032 cell
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Turrets: 1 MOA per click, 120 MOA of windage and elevation travel
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Field of view: 76.5 ft at 100 yards (25.5 m at 100 m)
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Size: 2.48 in (63 mm) long, 5.5 oz (156 g)
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Sealing: IP67 rated and nitrogen-purged against fogging
Technical Specifications
| Product Type |
MicroPrism scope, unmagnified |
| Magnification / Objective |
1x magnification, 17 mm objective |
| Reticle |
ACSS Cyclops Gen II, glass-etched, green illuminated |
| Illumination |
13 brightness settings, 3 night-vision compatible, with AutoLive |
| Battery |
CR2032 |
| Click Value |
1 MOA per click |
| Adjustment Range |
120 MOA windage and elevation |
| Field of View |
76.5 ft at 100 yards (25.5 m at 100 m) |
| Length / Weight |
2.48 in (63 mm) / 5.5 oz (156 g) |
| Water Resistance |
IP67, nitrogen-purged |
| Mount |
H1/T1 micro-dot footprint, 2.26 in mount included |
| SKU / MPN / UPC |
PA-SLX-1XMP-H-CYCLOPS-G / 710080 / 810178480159 |
What's Included
- Primary Arms SLx 1X MicroPrismT scope with green illumination
- 2.26 in mount
UK Delivery & Support
This prism scope is UK-stocked and dispatched tracked from our UK warehouse — no import duties and no customs delays — backed by UK-based aftersales support.
Frequently Asked Questions
Does a prism scope help with astigmatism?
Yes, for many shooters it does. A prism scope's reticle is etched into the glass and viewed through the optic's own focusing system, so it is resolved by the same corrected optical path as the target, whereas a red dot projects an LED that an astigmatic eye commonly sees as a smear, flare or double image.
Why choose green illumination over red?
The human eye is most sensitive to green light, so a green reticle is often easier to pick up against foliage and in poor light, and it can be seen clearly at a lower brightness setting, which saves battery.
What mount does the SLx 1X MicroPrismT need?
The SLx 1X MicroPrismT uses the H1/T1 micro-dot footprint, so it fits the wide range of mounts made for micro red dot sights, and a 2.26 in mount is supplied in the box.
What does the ACSS Cyclops Gen II reticle do?
The ACSS Cyclops Gen II combines a bold horseshoe that draws the eye quickly to the centre at close range with a precise centre aiming point and ranging features for estimating distance to a target of known size.
Does this optic work if the battery dies?
Yes. The ACSS Cyclops Gen II reticle is etched into the glass rather than projected, so it remains fully visible and usable with the illumination switched off or the battery flat.
Is the SLx 1X MicroPrismT waterproof?
The Primary Arms SLx 1X MicroPrismT is sealed to IP67 and nitrogen-purged, which protects it against dust ingress, temporary immersion in water and internal fogging.
