Classic
Primary Arms Classic 21mm Micro Reflex
| Series | Classic |
| Reticle color | Red |
| Reticle options | 3 MOA Dot |
| Optic Removal for Battery Change | Yes |
| Window Size (in) | 0.55 x 0.80 |
| Enclosed | No |
| Footprint | RMSc |
| Battery | CR2032 |
| Solar Failsafe | No |
| Shake Awake | Yes |
| Night Vision Compatible | Yes |
| Material | Aluminum |
| Weight (oz) | 1 |
| Dimensions (in) | 1.6 x 0.98 x 1.03 |
| Country of Manufacture | China |
| Average Price | $150 |
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