hey guys,
I was wondering what the best internal upgrade is for the best price. open to all opinions, thanks!!!

Polishing your intels, Its free. There is many threads about it on this sight

*site*??....

Anyway, many people get a great performance boost from simply polishing your internal receivers. Most of the internal components are just fine, which is why most people spend their time modifying the outside.

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Owner of "Midnight" (Red items purchased from A5OG members):
A5MP5k-PDW With R/T| Polished Internals | JCS Red Hot Powertube w/Delrin Front Bolt | TechT Upgraded Cyclone - Vortex/Lightning/QEPH/Squishys | OpsGear MP5 Mag & Folding Stock | NCStar Red Dot sight w/ UMS raised rail | X7 Hopper / R5 Hopper | Palmer's Female Stabilizer w/Lapco mount | Lapco "Apex ready" Bigshot w/Apex tip | 8" Lapco BS w/ Suppressor Shroud| Flurry Emmissary Tactical Vest & Reaver Shinguards - camo'd |Crossfire 68/4500 HPA |Proto EL Olive Thermal Goggles
Other Markers - Spyder Imagine LED / ION

I would suggest using the search feature. enter, a5 performance upgrades.

I say this not to be a jerk, but because i cannot provide all of the information for you in more post without well over a half page of links, and info, that would not compare to the results you will get by searching. If you have any questions at all, post them up or drop me a message that'll let me make up for my listing advice in stead of info here.

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98% of paintballers...eh, who cares

From my experience, the more stuff you do internally - the more problems you'll have.

The only things I did was polish the internals, and round off the right side receiver hole and arm. I did sand down some rough edges on the front face of the stock bolt where it contacts the ball. This solved my ball breaks and smoothed out the action of the marker.