NOVRITSCH SSQ4 HPA MODULE Optics MK2 Rigid Receiver: The MK2

MK2 Rigid Receiver: The MK2 upper receiver is identifiable by the reinforced "bulge" near the forward assist

The steel spring guide is equipped with a thrust bearing and uses a 3-lug design which ensures better axial alignment

backstrap jig

) Authority Elite MWS GBBR is a top-tier

Compact Pistol Calibre Carbine Platform

NOVRITSCH SSQ4 HPA MODULE Optics MK2 Rigid Receiver: The MK2Convert your Gas SSQ4 into its HPA variant with this kit! Doing so will unlock the potential of HPA giving you higher BB capacity, more consistent power output and no cooldowns. You will need SSQ4 HPA magazines to use this kit It is not compatible with any other GBBR.