Things I liked:Most of the gun is metal. It is heavy like the real thing. Looks good. Things I would have changed:The grip feels really cheap. The gun didn't work quite right at first and needed to be worked in a little before the hammer would go back when I pulled the trigger. The shells that hold the BB's have a little rubber tube at the end that holds the BB's and these fall out and can be lost. What others should know:Be careful if you glue the rubber BB's holders into the shells because if you use too much glue, the BB's will be held too hard and will not shoot out of the gun.
There is no hop up.
Things I liked:Looks good, but that really doesn't matter.
Good concept with regards to being able to add oil without taking the adapter off the propane tank. Things I would have changed:This product is dangerous. First of all, it is hard to get a good seal when filling the gun up with gas. I bought two of these units and both have stuck open when filling up my guns. Nearly gave myself frost bite trying to get the nozzle seated in the closed position again. What others should know:The chamber is quite large for adding oil so every time that you fill your gun you waste a lot of propane when you release the nozzle from the gun.
Things I liked:Not much to like because it is not what is listed in the description. Even though it is made by the same company as the Silver 4" model, it is not made out of the same materials. Things I would have changed:I had purchased the silver 4" model (HFC HG-133 4" Barrel Silver Gas Revolver) before I purchased this one. That model had said that if was heavy metal construction too. The only difference is that the 4" is mostly metal and has a much higher build quality. There is practically nothing metal in this product. It is so weak that the BB hardly makes it out of the barrel. What others should know:Mostly if not all plastic. Uses a weight below the barrel to make it heavier. The gun was delivered broken because the gun is allowed to move freely inside its own box. The barrel separated from the gun and the site came off too.