the reason y teh accuracyis bad for the tippmann flatline i think is the front bolt thats in ur gun...the standard one is plastic and that suks big time. i have the proseal metal bolt...works awesome...and for your hpa...i would get one thats small 45ci and fiberglass wrapped...but thats soome heavy money right there on the tank...i normally jus rent the compressed air tanks at the field to save some refill money
But for now:
1. Proseal frontbolt upgrade should be arround 30 bucks....u can get it at
www.*************.com
2. the broom stick....i dont really noe i heard misconceptions of both this barrel and flatlines...my sugesstion ...try them out first...if ur friends have it...
3. tank...theres a 70 buck tank...by crossfire...but its not really teh best one but still hpa...normal prices for hpa are 150 and up