Primary Arms GLx 1x MicroPrism w/Red or Green Illuminated ACSS Cyclops Gen 3 Reticle
- Rifle Scope
- 20 mm
- 1x
- 1x
- Better rated than 69%
A durable, daylight-bright prism sight with a reticle that remains usable without power, well liked by most buyers though one direct comparison favored the pricier SLx model for clarity.
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How it ranks among the 359 rifle scopes we track
4.7★ across 51 Amazon ratings, Bayesian-smoothed toward the category average.
51 Amazon ratings, weighted on a log scale so huge counts don't drown everything.
Brand identity, imagery, description and spec coverage.
The ProductDome score is separate from the Amazon rating shown above: it combines the Bayesian-smoothed Amazon rating with evidence volume, tracked demand, and data quality across the 359 rifle scopes we track - how the scorecard works · full rifle scopes data report. Confidence: medium - useful but incomplete evidence.Last refreshed Jun 22, 2026. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.
Overview
A 1x prism sight built around the ACSS Cyclops Gen 3 reticle, available with red or green illumination, with extended eye relief, a 20.5mm objective lens, IP67 sealing and up to 14,925 hours of runtime on setting five.
- ACSS Cyclops Gen 3 etched reticle
- 13-setting daylight-bright green illumination
- IP67 sealed, nitrogen purged housing
- AutoLive motion-sensing power saving
Who it's for
Suits shooters who want a prism sight with a reticle that works even if the battery dies, particularly on short-barrel rifles or pistol caliber carbines. Buyers comparing it directly against Primary Arms' SLx line should weigh the one report that the SLx delivers a truer 1x and sharper glass.
What buyers say
From Amazon customer reviews.
Reviewers consistently praised the daylight-bright green illumination, the wide eye box and the etched reticle staying usable without power, with more than one buyer calling the fit and finish solid. One reviewer who compared this GLx model directly to Primary Arms' own SLx 1x MicroPrism found the SLx noticeably clearer and closer to a true 1x, calling the GLx's magnification closer to 0.9x by comparison.
Strengths and trade-offs
Drawn from this product's published specifications.
- Etched reticle works without illumination
- Daylight-bright green LED setting
- Wide eye box, near unlimited eye relief
- One report of less clarity than SLx model
- Feels closer to 0.9x than a true 1x
Specifications
| Brand | Primary Arms |
|---|---|
| Model | PA-GLX-1XMP-CYCLOPS-G |
| Dimensions & fit | |
| Objective Lens Diameter | 20 mm |
| Item Weight | 9.1 ounces |
| Construction & materials | |
| Material Type | Aluminum |
| Color | Black |
| Compatibility & installation | |
| Mounting Type | Mini-Prism Footprint Mount |
| Compatible Devices | Rifle, Shotgun |
| Included components | |
| Included Components | CR2032 battery |
| Warranty & support | |
| Warranty Description | Limited lifetime |
| Other details | |
| Magnification Minimum | 1x |
| Magnification Maximum | 1x |
| Sport Type | Airsoft |
| Reticle Type | BDC |
| Night vision | No |
| Product Style | Green Reticle |
| Field Of View | 74.8 Feet |
Other Primary Arms rifle scopes
How it compares
This product against the closest alternatives we track in rifle scopes.
| Product | Amazon rating | Ratings | ProductDome score |
|---|---|---|---|
| Primary Arms GLx 1x MicroPrism w/Red or Green Illuminated ACSS Cyclops Gen 3 ReticleThis product | 4.7 / 5 | 51 | 4.0 / 5 |
| UTG 3-12X44 30mm Compact ScopeUTG | 4.5 / 5 | 3,000 | 4.4 / 5 |
| Vortex Optics Diamondback Second Focal PlaneBrand | 4.7 / 5 | 1,500 | 4.3 / 5 |
| PINTY Tactical Rifle Scope Combo: Illuminated OpticsPinty | 4.4 / 5 | 1,100 | 4.3 / 5 |
| Firefield RapidStrike 1-6x24 SFP Riflescope KitFirefield | 4.5 / 5 | 900 | 4.3 / 5 |
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Questions about the Primary Arms PA-GLX-1XMP-CYCLOPS-G
Common buyer questions answered straight from the product spec data - no fluff, no "it depends".
Does the reticle work if the battery dies?
Yes, the ACSS Cyclops reticle is etched into the glass and stays visible without illumination.
How does it compare to the Primary Arms SLx 1x MicroPrism?
One reviewer who owns both said the SLx has noticeably better clarity and a truer 1x magnification, calling the GLx closer to 0.9x.
What color illumination options are there?
This listing covers the red or green illuminated version, with reviewers noting the green setting reaches daylight-bright output.