TDC VSR TUNING KIT HOP UP ESCW (ESC-TDC-HOP-VSR)

TDC VSR TUNING KIT Innovative system to manage the hopup adjustment from the top through a bolt, super precise millimeter adjustment! it is necessary to modify your external barrel, it is supplied together with the MAPS to be able to drill in the right place without making mistakes COMPATIBLE WITH BOTH FLAT AND FULL PRESSERS NB. SPECIFY VSR MODEL IF MB03 - PRO SNIPER OR GSPEC