Here is the full list of all 16 GunsBox VR Playtest achievements.
Complete basic training
Complete first execise
Complete extended training
Hit the target with a pistol 50 times
Hit the target with a shotgun 50 times
Hit the target with a carbine 50 times
Complete all stages in any match
Customize your weapon
Complete the carbine training
Complete the pistol training
Complete the shotgun training
Complete the revolver training
Create your first stage
Share your stage with the community
Hit the target at least once with the collimator sight
Hit the target with a revolver 50 times