So I played my first game yesterday after about a year-long hiatus. My current AEG is having compression issues; here are the specs for the air-system:
-Very old TM piston head
-Stock CA cylinder head
-Type 0 systema cylinder (510mm inner barrel)
-Prometheus air nozzle
-Stock CA hop-up chamber
-Guarder bucking (still works fantastically)
-Element H-nub
-Prometheus 510mm inner
Now the airsoft market is always evolving, are there any new brands that I should look out for, or are the staples (Guarder, Prometheus, Modify, etc) still the high standards? I'm looking for a really tight seal, and after a year this gun really needs a tune-up. I am looking to definitely replace the cylinder head and piston head; I've put probably over 30 hours of work into the gun alone, so I'm by no means a novice to internals, but I've lost my touch in the mechbox world. Any pointers?