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Changes in version 4.1:
	
	
The body of the trigger has matte black color.
	
Spring guide stopper has been redesigned and moved forward. There is no need to push VSR bolt at the end of loading cycle.
	
Spring guide is all made of stainless steel with a perfectly smooth surface for less friction.
	
Hybrid piston has been completely redesigned. Rubber pad now exceeds larger area, stainless steel part is shorter, piston is more lightweight. This reduce the weight by a quarter over the previous generation. And lower weight means higher speed
	
Body made by CNC machining from light, but durable aluminum alloy 6061-T6.
	
Aluminum parts with high quality anodized finish
	
Piston catch, lever and the spring guide stopper are made of steel and hardened to HRC 28-32.
	
The top of the trigger is equiped with ball bearing for the smoother trigger press.
	
Axis are made of stainless steel.
	
Two torsional springs safety returns catch to the original position.
	
Whole trigger is made of 21 parts.
	
Package include trigger, spring guide, spring and hybrid piston.