Empire (Resurrection) pnumatics are also available from Inception Designs. The resurrection pnumatics were designed off of some of the best. Their LPR is a copy of the AKA SCM (best LPR made), parts are even interchangeable. Ram is a close to the belsales ram, with some slight changes (for the better IMO). The 3-way is similar in function to a shocktech bomb, but with a better designed shaft and oring choice.
AKA still makes the SCM LPR and can be bought new from their website for $50. They also still make the Tornado valve, and regulators.
Shocktech is starting to make parts again.
Like stated above, you can get belsales pnumatics from Compulise paintball.
Paintball gateway has a good selection of cocker parts.
Palmers sells pnumatics and valves still.
You can get new frames from Inception designs, Niche Paintball, and Shocktech. CCM is going to be making their hinge again, no idea when it will be available though.