Haven't used any sidearms like this before, only used my Spyder Sonix and a Tippman Custom 98 once.
2002 Blue Spyder Sonix (aka Spyder Snap)
Black 14 inch J&J Ceramic
ACI 4-Stage Sub-Zero Expansion Chamber
Backwards ASA cradle (bottle under gun)\
Trigger Job (4.5 mm pull)
Stock Bolt Mods--no venturi, rear cocking mod
Drilled Vertical Adapter
Stock Valve Pin Mod (high flow ground)
14 ounce CO2 with 12 ounce backup
~~In the mail~~
Black Sprint E-Frame
CMI R-2000 Inline Regulator
None, keep it bare stock and get a holster for it. Also, buy some 10 round tubes to quickly attach to the feed tube for 10 quick shots in a pinch.
Small, cheap, reliable, accurate for its size and price, readily available at many stores, looks fairly good, doesn't break balls cuz you can't fire fast enough to do that. Barrel pivots down for fast squeegeeing in case you fux something up anyway.
No upgrades available, but hey, pretend it's a PGP. Just semi auto, with capability to hold more paintballs. And with an easy to squeegee barrel. So actually there is no bad side to this marker, just don't use it was your primary marker. Use it as a backup.
Don't bother with the constant air adapter. Or the 45 round hopper. Get a belt that holds 10 round tubes and fill like 10 of them. Get a 12 gram in the gun and 2 more on the belt. Hang gun in holster. When you run outta paint or you get a break and you're in a firefight, whip out gun, attach 10 round hopper, and proceed to open can of whoop ass.