Having provided that "interesting" bit of reading material on the RAMI, I'd like to offer a bit of informaton as well.
Due to the compact size of this gun, the recoil spring assembly is under a lot of stress during operation.
Several sources indicate that it should be replaced every 1500 rounds if using the RAMI as a carry weapon. Like some models of Kahrs, it has also been found that the inner recoil spring lasts much longer than the outer spring, so many folks just replace the outer spring, and/or keep spare outer springs.
Finding recoil springs can be tough for the RAMI. The 3 sources I've found are CZ-USA, Midway USA, and Cajun Gun Works. All three sources often are out of stock, so when you find them, it's a good idea to buy a few to keep for spares. They're pretty cheap too.
Right now, CZ-USA has the outer springs in stock.....
http://shop.cz-usa.com/SearchByKeywo...0spring%20rami