Things I liked:I like multi pump or single pump pneumatic better than spring piston (break barrel.) BB repeater. Things I would have changed:I wish it had a clip for repeater with pellets. What others should know:Remington Air Master is identical to Crosman 2100. I like shooting tin cans the most, better than plastic bottles or soda cans. Pellets hit a tin can with a nice wack that gives the feeling of power very similar to a 22 firearm.
Things I liked:Single stroke and fairley easy to load you can shoot this pretty fast, 435 FPS is enough to make a tin can jump. I did research on Google and pyramydair has the best price. Things I would have changed:Fine as is. What others should know:On Utube there are vidios Beeman P-17 that show how to deburr the hole in the cylinder that has a sharp edge and maybe a burr from the factory and will wear the O ring there. Also how to polish the end of the barrel where you load a pellet as it closes against a O ring and if you smooth it the O ring will last longer. This is easy to do. I did it before I shot mine.