TTI - INFINITY TDC Hop Unit for Umarex / GHK G17 Gen5 MOS - Black Tracer Unit Spring Guide

Spring Guide

Stealthy black anodised finish

The 300mm length suits longer GBB platforms and carbine conversion kits

Upgrading the sear set is one of the most effective ways to sharpen your trigger response and improve reliability under heavy use

Product Code: F-IF43DSR-TT

TTI - INFINITY TDC Hop Unit for Umarex / GHK G17 Gen5 MOS - Black Tracer Unit Spring GuideTTI Infinity TDC Hop Unit for Umarex GHK G17 Gen5 MOS The TTI Infinity TDC Hop Unit for Umarex GHK G17 Gen5 MOS is a one piece, full CNC machined hop up chamber designed to replace the fragile factory unit. Its TDC (Top Dead Centre) adjustment system applies hop pressure straight down the centre of the BB for more consistent backspin and a flatter, more accurate trajectory. Machined as a single solid piece, it removes the flex and wear points of the