Beretta U22 Neos appear to be the standard sidearm of the Westworld QA Security Force. As such, they appear to be easy to acquire: Clementine Pennyfeather used one in "The Well-Tempered Clavier". Later it was used by Bernard Lowe to commit suicide. In Season Two, Charlotte Hale and Elsie Hughes start carrying one.
Notes
- This weapon has a red barrel, which may indicate that it's for use against both humans and hosts. Other weapons used by staff are colour coded in the same way, such as the Beretta Px4 Storm Compact used by Stubbs and the FN P90 TRs used by QA are.