Here's a List of Stuff from Both Manufacturer's
MacDev:
~Red Valve (high flow)
~LPR Adjustment (replaces the Stock one and is smaller)
~Sonic Trigger Frame (a lot better than the stock)
~Mid and High Rise
~Sonic ball detent (ball made from delerin which is easier to clean and won't damage the bolt as much)
~ Sonic Aftermarket Reg adapter (looks great with their gladiator reg)
~They even Market a full Sonic version of the Bushy
Paintball Trader
~Offers a Vapor Mod (polishing of internals other work to hae your bushy running smoother)
~Vapor Valve (higher flow for lower pressure comes with Black magic cupseal)
~Vapor Bolt (high flow and better air efficency, also uses three o-ring design)
~Vapor Trigger (replacement trigger for the bushy)
Sam (the owner)also does a thread conversion for
which rethreads your bushy to take cocker barrels
There is also the Ripper Grip frame made by cnc-machining:
www.cnc-machining.com/ripper
I have this frame and it rocks, the spring tension for the trigger is adjustable and looks very cool.
This is what we have stateside, hope this helps
