NEW One-Piece Body - New 3D machining with sleek lines. The Body has an integrated male FRM the same as Ego11 and Geo2 to accept the SL3 Regulator * NEW SL3 Regulator - Internally and performance-wise, the exact same regulator that can be found on the Ego11, CSL and Geo2.1. It allows the Etek4 to run with HP, MP or LP tanks without the need to alter settings and inline regulator adjustments. It has a replaceable and reversible main seal as well as self-purging feature to leave the firing chamber de-gassed after tank removal. * NEW Angled Inline Reg Swivel - Similar to those seen on the Geo2.1 and Ego11, the Etek4 now includes its own angled reg swivel. * NEW 2012 OOPS - The new OOPS combines a low profile, ultra-easy on/off/purge function and front-mounted hose exit. As with all Eclipse markers since 2007 the Etek4 utilizes the T-Slot Rail. The Etek4 will also accept a POPS ASA. * NEW Zick2 Rammer Kit - The incredibly successful Zick2 kit is now to be found as standard on the Etek4. The Etek4 kit utilizes a unique rammer cap to work with the Etek4 rammer housing.