You can purchase a full size 1911/22 that will fit into your 1911 holsters . They are branded as Colt, but they are produced by Walther in Germany and imported by Umerex. I have such a pistol and it has performed very well. I use mine primarily as a training augment to my center fire semi autos. In that role it is an excellent firearm.Accuracy?
High volume of ammo?
Does the 22LR slide work on your full sized 1911 frame? (Can it be used as a conversion?)
Or to put it a different way, Ruger 22/45 or Browning in 22LR or conversion?
This is a link to an example
Walther Arms Colt 5170304 1911 Government Tribute .22 LR 5" 12+1 Poly Grips | 5170304 - Buds Gun Shop