It has locking lugs - I have an officer model but never fired it. At some point I will convert to smokeless 45cal and would like to find a Ruger boat paddle synthetic stock. I work on remington 700ml a little more and like the parts options better.
I have several. They are handy and accurate. My officer model has dropped the most deer of all my MZs. I converted it to a closed breech for BH209. 75gW and 250 TMZ Yellow crush rib sabot. Even crappy ones sell for big money on GB.