spyder xtra, whisper barrel, ricochet ak, esp electric trigger frame, 20 oz tank.
Strengths:
good varity of spings.
Weaknesses:
none yet
Review:
These springs are actually made for spder too. I got these so now i don't have to get my spring cut anymore. Theres nothing much to say about spings other than i paid $14.99 for them at my local paintball store.Most of the time i use the the lowest spring on my spyder rigt now.
Conclusion:
Get these springs if you don't want to get your sping cut anymore, they are the best out there right now.