I have a cometa 300 aswell, just the standard one and fitted a webley pro-system silencer to it. I know what you mean about the length. ideally i would like to have the barrel shortened and threaded but not sure if its worth my while as i am saving for a hw77. The spring broke twice in mine the first after 6months and the next one fitted by a gunsmith lasted just 3 ( looked suspiciously like a OX spring ). Finally fitted a new one myself and have been trouble free for a good while at 10.7ft/lb.I also have fitted sling swivels for ease of carrying when out in the feild. I didnt find the trigger all that comfy to use but found that the brass trigger shoe from B.A.R really helped by increasing the area that your finger can rest on. Does anybody know if any of the V-mach kist would fit this rifle or even if i could purchase a gas ram that would fit.
Alan