GSI Hop-up Arm for APFG (MCX / MPX) 68rd simply push down on this

simply push down on this lever to send the bolt forward

and Area 2 in Limited and Open divisions in the same year

a full 360 degrees of adjustable freedom and 24 different secure positions

Its realistic size allows it to fit into a grenade pocket

GSI Hop-up Arm for APFG (MCX / MPX) 68rd simply push down on thisGSI Hop up arm for APFG MCX, increases accuracy (hop up tensioner included) The hop up arm included as standard in the APFG MCX series has a lot of left right play, which makes bullets not come out consistently. To solve this problem, GSI improved the play of the hop up arm for the MCX and matched it with a dedicated hop up rubber and hop up tensioner to create the optimal bullet collection. This precision engineered upgrade ensures your shots are