TTI - INFINITY TDC Hop Unit for Umarex (VFC) G-series - Black G27 we offer two professional upgrades

we offer two professional upgrades for those who want more control over their power:

players can use it to fix the outer barrel to improve accuracy and performance

Does not include slide catch

All parts are CNC out of aluminium and steel provide the best durability

The weight is only 4

TTI - INFINITY TDC Hop Unit for Umarex (VFC) G-series - Black G27 we offer two professional upgradesTTI Infinity TDC Hop Unit for Umarex (VFC) G series The TTI Infinity TDC Hop Unit for Umarex (VFC) G series is a one piece, full CNC machined hop up chamber built to replace the fragile factory part. Its TDC (Top Dead Centre) design pushes hop pressure straight down the centre of the BB for more consistent backspin and a flatter, more accurate trajectory. Cut from a single solid billet, it removes the flex and wear of the stock plastic chamber so your