I recently bought a used Astra a-75 .45 from a friend. I like the gun and for the money think it is a good gun. The question I have is that the slide to frame fit is loose and the gun rattles a bit. The gun shoots well but the rattling annoys me.I dont have a lot of money to spend, the reason I got the Astra in the first place, is there any way to fix this without any major investment. Also anyboody have any tips for tuning the gun for better performance that I might be able to do on my own. shaky Astra A-75