The Primary Arms SLx 1X MicroPrismT delivers red-dot speed with the clarity and durability of an etched reticle — it stays usable even with the illumination off, making it a great choice for shooters with astigmatism. This model uses a simple, fast T-Dot reticle and the popular H1/T1 micro-dot footprint for wide mount compatibility.
RDB illumination gives a bright, high-contrast aiming point across 13 settings (3 night-vision), with AutoLive motion-sensing to save battery. It's tiny (2.48in, 5.5oz), sealed to IP67 and nitrogen-purged.
How It Compares
Want a ranging reticle instead of a plain dot? See the SLx 1X MicroPrism ACSS Cyclops. Prefer a bigger window and mini-ACOG footprint? The GLx 1X MicroPrism. Browse all prism scopes and AR-15 optics; read our ACSS explainer.
Ideal For
- Close-range AR/carbine and shotgun setups
- H1/T1 footprint builds
- Shooters with astigmatism (etched reticle)
- Those wanting a simple dot with prism clarity
Key Features
- 1x prism; etched RDB-illuminated T-Dot reticle
- H1/T1 micro-dot compatible footprint; ships with 2.26in mount
- 13 settings (3 NV); AutoLive
- 1 MOA clicks; 120 MOA travel; 76.5 ft FOV
- 2.48in / 5.5oz; IP67, nitrogen-purged
Technical Specifications
| Magnification |
1x |
| Objective |
17 mm |
| Reticle |
T-Dot (etched, red RDB) |
| Brightness |
13 settings (3 NV) |
| Click Value |
1 MOA |
| Adjustment Range |
120 MOA W&E |
| FOV @ 100 yd |
76.5 ft |
| Battery |
CR2032 |
| Footprint |
H1/T1 (2.26in mount included) |
| Length / Weight |
2.48 in / 5.5 oz |
| Sealing |
IP67, nitrogen-purged |
What's Included
- Primary Arms SLx 1X MicroPrismT scope
- 2.26in mount
UK Delivery & Support
UK-stocked and dispatched tracked from our UK warehouse — no import duties or customs delays — backed by UK-based support and the Primary Arms Lifetime Warranty.
Frequently Asked Questions
Why a prism over a red dot?
The etched reticle stays sharp even without illumination — ideal for astigmatism.
What footprint does it use?
The H1/T1 micro-dot footprint; it ships with a 2.26in mount.
T-Dot or Cyclops?
The T-Dot is a simple fast aiming point; the ACSS Cyclops adds ranging and holdover features.
