Aw i'm not sure....i hav'nt had any trouble with it..i know i've heard the complaints.....this 400 is 2.5 years old....i just got new cables and Strings put on it...it's ready for another season.....i shot it 25 times today sighting a scope in....The truglo,i had on itwas too high on the xbow...and would'nt adjust corectly....Honkers