Geezer

Looks good to me. Made in England so it's prob quality stuff. Not like you have a polar star in there. Would be interested in knowing what some of you that have been around a long while use?

So it started around 310 when I got it around father's day and dropped to 280 over time. I popped the gearbox out and cycled the piston back to where I could lube the o-ring. (You can use a fingernail or small screwdriver to rotate the o-ring to get the whole thing. Went back up immediately. Also a huge problem with mine was they used too much glue on the red tip and it glued the inner to the outer barrel. The barrel is not supped to be locked in place. Also swap the barrel spring that is around the barrel that contacts the upper. It was odd shaped, almost conical.

Hey guys. So this same gun has been rebranded as a Matrix Calico Jack. Not sure if it is exactly the same but it seems to be. Re-lubing, 6.02 barrel and a 95 spring has it shooting 349.0 to 350.8. the only annoyance is the battery compartment and the inability to switch to a buffer tube. Going to try to find someone to print one of those extensions. Thanks for all the work you put into this. I was about to abandon it and buy an arp556 to start building but I think I may stick with this guy now.