That’s a Para Ord. 1911 LTC (barrel is 1/2” shorter than standard).
LR, it's a .22 pistol made by Ruger. They are very nice. Ruger has been making this model type since 1949. Andy's is the most updated version but still has the classic 'Atomic Age' style.
If you were going to get a first pistol for yourself LibertyRocks, that is the one to get.