Airsoft GI DIY – Installing a New Hop Up Unit (M4 / M16 one piece hop up)

Airsoft GI DIY – Installing a New Hop Up Unit (M4 / M16 one piece hop up): We received a lot of requests from customers on how to do some minor modifications / Upgrades to their airsoft guns. In the Airsoft GI DIY series of articles, I have Marq install minor modifications to standard airsoft guns that … Continue reading →