EMG / Maxx Model CNC Aluminum Hopup Chamber for M4 / M16 Series Airsoft AEG Rifles (Model: M4A / EMG Blue)
1 Customer Review
by Mark L. on 03/11/2024
"my first hop up install ..unit comes ready to drop in , no need to assemble the unit. works but i get a double feed every 4-5th shot but i think thats probably a different issue (gear ratio maybe?)