Most pistol scopes by design have a very long eye relief so that the reticule is in focus when your arms are almost fully out stretched in the normal pistol shooting position. I had one for years on my .30 M1 carbine as it is difficult to fit a normal rifle scope on them. Also handy for shooting moving targets with both eyes open. Since returning to UK I have used Rhino pistol scopes with 32 mm lens and found them quite good, but I am not sure if they are still available.
Baz
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