So got stuck into my mates son’s Cosmo. Pretty cool. First thing to not it is a gen8 style, not exactly gen8 spec. The front mounting pin holes are different as is the tpiece post screw. You could make it work, but the Cosmo box seems similar in quality material to gen8, maybe close to a singularity if I dare say!
First note is the nozzle is proprietary, as is the tpiece so hopefully the hot water trick works to get an alloy barrel in. Stock plastic barrel is only 210mm, adding an extra 30-40mm would let a hopup be added so hoping for that.
Next, spiral bevel and pinion gears! Pretty cool, unfortunately won’t be able to test the gears durability as when the anti reverse spring failed it has broken the tappet cam off the sector!
Metal spur gear wouldn’t fit in true gen8 form… but change the stock 8mm bushes and bearings to SHS slims and there is plenty of room for shimming! Yay! Also going for cast gears, metal rack piston, and spring from JG V2 boxes, all unused from boxes I upgraded before use so he can have those for free and keep the cost down!
It is getting a new piston head, o-ring, and red chi hai though… and alloy barrel gel gods willing.
Some other nice notes, the trigger and spring behave and stay put, I know bullshit right! Also cylinder head seals well, nozzle is a little leaky but can’t change that, and the cylinder is slotted/ported just a little over volume for a 210mm barrel, standard piston head and o-ring were reasonable but not great.
Also the amount of screws in the body is good for sturdiness but takes a while to get into. At least are all the same size!
So far pretty impressed, will have a video in time of course.
