Re: Top lever and lock springs Archived Message Posted by David Williamson on October 20, 2017, 6:27 am, in reply to "Top lever and lock springs" Yes they are interchangeable, but the short leg of the lock spring may have to be fit to work correctly. All of the internal parts of the locks from a 10 ga. to a .410 are interchangeable. Message Thread: Top lever and lock springs - John mistretta October 20, 2017, 6:10 am Re: Top lever and lock springs - David Williamson October 20, 2017, 6:27 am Re: Top lever and lock springs - John mistretta October 21, 2017, 7:44 am   Searching