I purchased this pistol about three weeks ago and my great grandson and I fired it today.
Everything works very well. No issues placing the primer into the chamber or extracting them, even though we did not use the tool provided.
We fired at about fifteen feet and found it to be accurate although we only had the 4.3mm BB's used for the Rider derringer, I'm sure it would have been better with 4.5mm
BB's.
A lot of fun to shoot, even in your backyard, I highly recommend it.