| Term |
Definition |
| Ejector |
A device for expelling a fired cartridge case from a firearm. |
| Elevation |
Adjustment of the point of impact of a firearm in the vertical plane; the knob used on an iron sight or telescopic sight to raise or lower the point of impact. |
| Extractors |
The Extractor is a device that pulls the cartridge out of the chamber. |
| Eye Relief |
Eye relief is the distance your eye must be from the ocular lens and still get a full field of view. |