Primary Arms SLx 5x MicroPrism
The Primary Arms SLx 5x MicroPrism is a prism rifle optic at 5x magnification, using the ACSS Aurora 5.56 Y reticle in red. It ships on a fixed mount at Absolute Co-Witness or Lower 1/3 height (1.41 or 1.535 in optical centerline). It runs on a CR2032 cell and adds shake awake, night vision settings, and an enclosed emitter. The body weighs 8.5 oz. Measured against the 320 red dots and prisms in the index, it lands about in the middle for weight (8.5 oz) and on the cheaper side for price ($400). It is one of 6 entries in the index that qualify as a prism at 5x. The closest listed comparison is Primary Arms SLx 5x36mm Gen III, the same brand's prism at 5x, priced at $345.
| Series | SLx 5x MicroPrism |
| Optic Type | Prism |
| Magnification | 5 |
| Reticle Name | ACSS Aurora 5.56 Y |
| Reticle Color | Red |
| Solar Failsafe | No |
| Shake Awake | Yes |
| Night Vision Compatible | Yes |
| Enclosed | Yes |
| Battery | CR2032 |
| Optic Removal for Battery Change | No |
| Mount Type | Fixed |
| Mount Height | Absolute Co-Witness / Lower 1/3 |
| Mount Height (in) | 1.41 / 1.535 |
| Weight (oz) | 8.5 |
| Average Price | $400 |
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