I'm sorry you've had to return the kral. My club mate gave up with his magazine and uses a single shot loader, his valve went faulty, his power was just over 10fpe. If something sounds too good to be true, it usually is! On a up side for budget bullpup, I love my smk shorty accurate upto 50yards, faultless mag, once you get into a system cocking it it works well. Very very well made, titanium cylinder and regulated.