I had a cva staghorn. That cheap lil rifle was accurate for its price! I forget how the trigger setup was but if its connected to the base of the barrel, just remove it and put the breech area in the bucket of water. Make sure you try that area real good and oil it up. 3 in 1 oil will rust your gun by the way. cva sells scope mounts where u can pull the scope off and then put it back on and have it still on sight. Some where around $20-25 if i remember right. Ahhh wait it just hit me. All you have to pull out is the plug at the back of the barrel where the firing pin, spring, are located. Simple gun to take apart. Once thats out, squeeze the trigger and hold it and the bolt will slide right out.