TTI - INFINITY TDC Hop Unit for Marui Spec Gen3 Glock - Black G17 giving you a more consistent

giving you a more consistent backspin and a flatter

⠂CNC Superline Riser Plate *1

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TTI - INFINITY TDC Hop Unit for Marui Spec Gen3 Glock - Black G17 giving you a more consistentTTI Infinity TDC Hop Unit for Marui Spec Gen3 Glock The TTI Infinity TDC Hop Unit for Marui Spec Gen3 Glock is a one piece, full CNC machined hop up chamber that upgrades the original factory unit. Its TDC (Top Dead Centre) design applies hop pressure straight down the centre of the BB for more consistent backspin and a flatter, more accurate trajectory. Machined from a single solid billet, it removes the flex and wear of the stock plastic chamber so