My Ruger Mark IV 22/45. Actually the only part that is Ruger now is the frame.
Volquartsen Accurizing Kit and LLV-4 6 inch barrel with compensator. Tandemkross Victory Trigger. Trigger pull is 19 oz. Shoots like a dream.
Herrett Stocks but today I changed them out for a pair of StonerCNC blue stocks. They are heavily textured and keep my hand where I put it.