The gun and the build are great, theyre what you pay for, but its the customer service that sets these guys apart. Bought one of these guns and everytime ive had a issue or concern I call them up and can speak to the actual guy who built my gun. Let me save you some hassel. Just buy from airsoft junkiez

I did this gun with the Maxx hop unit and Prometheus inner barrel and a Polarstar Kythera. My only complaint about this out of the box was no matter what PSI I set my regulator to, what BBs I used or magazines where loaded into the gun it would only fire every other shot. After several variation testing's I reached out to Airsoft Junkiez to inquire if they could take a look at it and figure it out. They were happy to. After a bit of you-tube though I realized I could do it myself buying the metering screw from Polarstar and it would be less than what shipping it to AJ would cost me. This being the only issue and not actually something wrong with the tech work on the gun or the gun itself and more just the airflow due to me having a regulator that refreshed the Kythera to fast. The other reason I am giving this 5 stars is because of their customer service. When I initially reached out to AJ I explained the situation and what was happening and told them I had already removed the orange tip but wasn't looking for a new gun just answers about this one. They were happy to help anyway provided I shipped the gun and paid for parts which I could absolutely stomach. Thanks Airsoft Junkiez you have made a client for life. :)