The Rail kit, Deadlwind's initial exclusive product, was developed in 2001 and received a patent on the technology in 2002. The Rail kit is a closed-bolt bolt-on modification for Spyders and Spyder clones which disconnects the bolt from the hammer and independently cycles the bolt via a low pressure signal read from the trigger position. This resulted in multiple advantages-

• More consistent hammer strikes since the hammer is not affected by variances induced by the bolt (chambering different sized paintballs, presence or absence of oils, etc)
• Probability of chopping a ball is reduced to near-zero due to the extreme low pressure operation of the bolt.
• Smaller, lighter weight bolt "tip" reduces reciprocating mass, reducing kick.
• Bolt tip remains closed longer after a shot resulting in:


• Reduced noise.
• Reduced blowback up into ball feed neck.
• Increased efficiency (+35fps increase as tested on a Spyder Shutter).
• Increased "cool factor" of Spyder or clone.