Was looking for a cool mil-sim gun, read good reviews, bought the marker.
When it arrived, I read everything, watched video and so on... Shot a few rounds off in the back yard, starts bursting balls, turns out the rubber seal around the bolt blew off.
Replaced bolt with the recommended back-up bolt I had purchased and got her up and working.
First day of game play on the field the marker worked great, sounded great, fired great for a total of two and a half games, then one of the clips jammed.
Turns out the fingers on chain got all messed up, the flat spring on top of the clip bent because it was pushed up into the bolt from the jam and guess what... once again the rubber seal around the bolt got messed up, this means a another whole new bolt.
Fixed it again, made some adjustments based off of recommendations from the distributor now Iâ€™m having what's called stall problems. Followed protocol got it working yet again.
Few weeks later took the AT4 to the field... chain in a different clip messes up, thankfully the bolt is ok but stalling issues start up again.
I give up!!!!
Spent alot of money and went nowhere...
I'm a pretty mechanically inclined guy but the ATS AT4 marker defies logic.
The whole clog, chain, mag. feed system is its selling point and its weak point.
I give up on this marker because the writing on the wall tells me that everything must be just right or your in for trouble.
"When its good, its good... when its bad, its baaaddd!!!" kind of thing.
I feel that the ATS company is holding on to the past and needs breath some new life into their marker (and their website). If they made some changes I'm sure good things would follow.