I bought parts from both airsoftgi and evike. some stuff airsoftgi has cheaper/better quality, vise versa with evike.
Airsoftgi i bought the TB barrel, the nozle and the piston head/cylender head set, along with the mag box.
evike i bought the motor, the gear and piston set, the sound aplifer flash hider, along with evike .01 stickers.
I bought the Lipo off of Ebay. Ebay is REALLY good for lipos atm. I bought the 15c 3cell Tenergy 11.1v 2000 mah tamiya plug lipo for 23$ shiped. the same exact battery airsoftmegastore carries for 45 dollars not including shipping.
Ebay also has a Large collection of high discharge rate no end plug lipos that come straight from asia. Youd have to buy your own plug,either tamiya or deans, or what ever you want, and sauder it on thier with Uber high resistance sauder. and those averaged about the same as what i bought, those you can buy 2000-4000 mah for 20-30 bucks.
The Lipo charger i bought on Amazon for $30 shipped. can also find it on evike for 35 not including shipping.
The motor i bought, guarder ITU is on preorder until next week, so i doubt evike will part out the parts, makign them ship it all at once next week.