The SIG Sauer ROMEO4T is a red dot rifle optic at 1x magnification, using the Ballistic Circle-Dot 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, solar failsafe, and night vision settings. The aluminum body measures 3.37 x 1.81 x 2.50 in and 7.6 oz. Measured against the 320 red dots and prisms in the index, it lands on the lighter side for weight (7.6 oz) and about in the middle for price ($530). It is one of 149 entries in the index that qualify as a red dot at 1x. The closest listed comparison is SIG Sauer ROMEO4T-PRO, the same brand's red dot at 1x, priced at $570.
| Series | ROMEO4T |
| Optic Type | Red Dot |
| Magnification | 1 |
| Reticle Name | Ballistic Circle-Dot |
| Reticle Color | Red |
| Solar Failsafe | Yes |
| Shake Awake | Yes |
| Night Vision Compatible | Yes |
| Enclosed | No |
| 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 |
| Material | Aluminum |
| Weight (oz) | 7.6 |
| Dimensions (in) | 3.37 x 1.81 x 2.50 |
| Average Price | $530 |
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