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Foster (F202) US Output Fitting
GDWeight : 136
the springs may need to be pushed into location with a small flat blade screwdriver
Package Contents
1 Threaded Outer Barrels
TTI - INFINITY TDC Hop Unit for Umarex / GHK G17 Gen5 MOS - Black Cocking Handle Foster (F202) US Output FittingTTI 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
