Worker Elite 7kg spring.  Power up your blaster with this 7kg upgrade spring.  Compatible with the Recon MkII, Elite Alpha Trooper, Rampage, Retaliator, Tri-Strike, Doominator, Zombie Strike Slingfire, Delta Trooper, Mega Bigshock.  Provide more firepower to your equipment with this simple upgrade spring.  Comes with upgrade catch spring included.

Expectations.  Variables considered, depends on darts used (quality/condition), Blaster condition, breech used, lubrication and how well it is been maintained, seal etc.
Stock Retaliator = 90-100fps
Sealed breech (pusher kit/standard plunger tube)= 120-130fps
Sealed breech (brass breech/standard plunger tube)= 130-140fps

Blaster compatibility:  Elite: Recon MkII, Elite Alpha Trooper, Rampage, Retaliator, Tri-Strike, Doominator, Mediator, Zombie Strike Slingfire, Delta Trooper.


Important Safety
Blasters are modified at your own risk.  BlasterTECH will not accept any liability for damage or reduction of lifespan of your blaster.  BlasterTECH will not accept any liability for injury caused during or after modification.  The items on this site are safe as long as the operator uses it safely. The items on this site are to be used by those 18years or older.  Always wear protective eye wear whilst using blasters. Never point or aim at someone's eyes or face. Always use approved darts. By purchasing these items you will use it in a safe and responsible manner and you agree that BlasterTECH will not be liable for any injury caused by misuse or accidental usage.