I would guess there must be some after market locks and triggers for that rifle. Contact CVA and see what they have to say. Actually I have a CVA rifle. When I got it that thing had a 12 pound trigger pull. I sent it in to CVA and they fixed it. Its now 3.5 pounds. Which is very acceptable. You might consider sending them the rifle and letting them work over the lock. Send them an email or give them a call. They have a great customer service.