The Prometheus Hop Up Flat Straight Chamber Packing Blue Bucking works in AEG airsoft guns. The smooth bore is unique and requires a bridge (Flat Hop nub) to function perfectly. Great for heavyweight BBs. Very popular seller and well-liked by pro players. Excellent new high-quality product from Prometheus in Japan!
This is the bucking to use in AEGs if you want to flat-hop your airsoft gun. Requires an additional nub (Firefly or Prometheus) to flat-hop it.
Tag: Bucking AEG Polarstar AK M4 M16