If you are unsure of how to decompress the air cylinder you use an Allen key in the grub (set) screw at the rear of the cylinder. Turn it VERY slowly to release the air.
Thanks Sawbones & Carnivore, The air has leaked out by itself so it should be ok to work on, but I will make 100 sure it is decompressed.
I notice there is a little tube in the box that looks like a "plug spanner". It seems to fit around the pressure gauge. I assume that is then used to remove the
The end cap is actually so loose it can just be unscrewed by hand. There is just one o-ring holding it. And a small one on the filling valve screw. So I wiped the metal parts and o-rings, re-assembled and added some air and it seems ok so far. I only have 150 bar in my cilinder but wil leave it overnight and check it in the morning
yesterday i bought my p15 in iran , light gun really compare to my r10 or kral arms mega . its pretty loud so i have to make adapter ( 1/2 inch ) for silencer or build a new shroud for it with adapter . stock is easy to scratch on it so i decided to bundle it but i will make a new stock for it or maybe refinish it with better oil or even carbon looking finish .about accuracy , i got about (less than ) 20 mm in 45 meter , i will test it at 100 later and share the result with you ! the regulator must be tuned , i didn't know how to tune it so my gunsmith did it for me . also barrel has a little crowning problem that he fixed it for me . i cleaned barrel and entire mechanism from oil and then i polished it and used high quality silicon oil for suggested parts . also changed some O-ring cause default O-rings was not good . ( power adjustment : with fx 18 grain (made by jsb) i got 273 m/s so its 43 joules)
(scope : hawke sidewinder 6.5 20 44 tactical . mount : 30mm Utg high mounts )
My P15 is now shooting to hunting accuracy out to 45 yards. I hit a golf ball 2 out of 3 times [and scared it with the 3rd] at that range with excellent power. How much power is a mystery as my chrono has quit on me but, when I last tested it, the P15 was making 11.1fpe, good enough for the task in hand. [EDIT: I managed to get the Combro working and the rifle is making 10.9fpe]. With the rabbit season ahead it's good to know that this handy little power-house will be out for long walks and will not wear me out from carrying it. The Delrin/POM silencer makes it so quiet I am now annoyed by the racket the hammer spring is making though it does prove that the rifle is working.
That it is finally working as it should is a huge relief to me as I had been wondering whether I would be selling it on or getting a gunsmith to rebarrel it. H+N Sniper Medium are the pellet of choice though I will still try some heavier BisMags or JSB Heavys again as it has switched preference before. Hopefully it will become 'Polyplumbic' (to invent a word).
Has anyone found the need of a sling on theirs? If so, where have you mounted your studs or Picatinny rail? I'm currently trying a single point tactical sling but I'm always open to a better solution.