Siegetek Concept Spring Guide Spacer for Cyclone System double bell m4 the regulator still has the

the regulator still has the ability to operate at 40psi

CNC Aluminum Advanced Speed Trigger (Style D) is specially designed for fast response

0 (Buna 70) - Type 2 Barb Fitting

Replacements are available

Siegetek Concept Spring Guide Spacer for Cyclone System double bell m4 the regulator still has theSiegetek Concept Spring Guide Spacer for Cyclone System For those who purchased the optional spring guide spacer, simply slip the spacer down the guide rod on the spring guide as shown. This would pre compress the spring to produce higher energy output when installed. Please ensure that the wider end of the spacer caps over the spring guides thrust bearing while the narrower end engages the spring. Installing the spacer in reverse will jam the system