Primary Arms SLx 3X MicroPrism Scope Red Illuminated ACSS Raptor 5.56/.308 Yard Reticle FDE
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The Primary Arms SLx 3X MicroPrism is a fixed 3x prism scope with a red-illuminated, glass-etched ACSS Raptor 5.56/.308 Yard reticle, finished in Flat Dark Earth.
The reticle is etched into the glass rather than projected by an LED, which is why so many shooters with astigmatism can use a prism scope cleanly when a red dot looks like a smear.
Primary Arms gives the optic a 23mm objective, 2.70 in of eye relief, a 7.4mm exit pupil and a field of view of 38.00 ft at 100 yards, weighing 7.95 oz. Exposed low-profile turrets adjust in 1/4 MOA clicks with 80 MOA of travel in windage and elevation, illumination is red across 13 brightness settings with three of them night-vision compatible and AutoLive motion sensing, and the power source is a CR2032 coin cell. It carries the Primary Arms MicroPrism mounting pattern, which is also compatible with Trijicon Mini-ACOG mounts.
The ACSS Raptor puts a centre chevron over bullet drop holdovers, ranging stadia and wind holds, laid out in yards for 5.56 and .308. Optically this is the same scope as the black version, so the choice is finish, not performance, and 3x is deliberately fixed: no zoom ring, no first focal plane compromise, no second battery. Because the reticle is etched, it stays usable with the illumination off or a dead cell.
It uses the Primary Arms MicroPrism mounting pattern and is compatible with Trijicon Mini-ACOG mounts, so it goes on any Picatinny-railed rifle through the mount supplied with it. The same optic in black is the SLx 3X with the red ACSS Raptor, and the green illuminated version swaps the emitter colour. For an unmagnified prism on the H1/T1 footprint, look at the SLx 1X MicroPrismT with ACSS Cyclops Gen II.
| Product Type | MicroPrism scope, fixed magnification |
|---|---|
| Magnification | 3x fixed |
| Objective | 23mm |
| Reticle | ACSS Raptor 5.56/.308 Yard, glass-etched, red illuminated |
| Illumination | 13 settings, 3 night-vision compatible, with AutoLive |
| Battery | CR2032 3V lithium coin cell |
| Click Value | 1/4 MOA per click |
| Adjustment Range | 80 MOA elevation and 80 MOA windage |
| Field of View | 38.00 ft at 100 yards |
| Eye Relief | 2.70 in |
| Exit Pupil | 7.4mm |
| Weight | 7.95 oz |
| Mount Compatibility | Primary Arms MicroPrism / Trijicon Mini-ACOG |
| Finish | Flat Dark Earth |
| UPC | 818500015864 |
| MPN | 710054 |
If red dots have never worked for your eyes, this is the honest fix. Order the SLx 3X MicroPrism today — imported from the USA with all duties paid by us and dispatched tracked from the UK in 7–10 business days, with nothing to pay on delivery.
Explore more: Prism Scopes, SLx 3X MicroPrism in black or browse all Primary Arms.
| Brand | Primary Arms |
|---|---|
| Part no. | PA-SLX-3XMP-RAPTOR-5YP-FDE |
| Category | Rifle Scope |
| Barcode | 818500015864 |
£5 tracked UK delivery on every order via Royal Mail Tracked 24. Our products are ordered in from the manufacturer rather than held in UK stock, so please allow 7 to 10 business days (Monday to Friday, excluding bank holidays) from the date of your order for it to reach you. Tracking details are emailed on dispatch. UK delivery only.
You have 30 days from receiving your order to cancel it for any reason, then 14 days to send it back unused and in its original packaging. Faulty, damaged or incorrect items are replaced or refunded and we cover reasonable return postage. Refunds go back to your original payment method within 14 days of receiving the return.
7 to 10 business days from the date of your order. Every order is sent Royal Mail Tracked for a flat £5 and you receive tracking details by email when it is dispatched.
Yes. We list only genuine parts and optics from the brands shown, ordered in from the manufacturer for your order.
Compatibility notes on this page come from the manufacturer. If you are unsure, email us with your make and model before ordering and we will check rather than guess.
Yes. Bundle & Save applies automatically in your basket: 5% off when you buy 2 items, 10% off at 3 items and 15% off at 4 or more. It works across the whole range, so you can mix and match, and there is no code to enter.
Yes — you have 30 days from delivery to cancel for any reason, as long as the item is unused and in its original packaging. See our returns policy for the details.
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