Before any upgrades are done to the rifle, both stock, an open bolt rifle will be more accurate. But after you do some mods, as well as some upgrades to the closed bolt, you can get it to be just as accurate. And the closed bolt system is going to be far better on gas than the open bolt is.
The closed bolt system ( the brass tube ) has been around for a long long time, and it is a tried and true system. The open bolt is a newer system, but many people like it. Think of the closed bolt like an AEG, and the open bolt like a Tanaka M700.
If you are going to be crawling around in the muck and gunk, I personally would vote the closed bolt system. As the open bolt leaves the hop up exposed to dirt and other items that you wouldn't want in your system.
The closed bolt system ( the brass tube ) has been around for a long long time, and it is a tried and true system. The open bolt is a newer system, but many people like it. Think of the closed bolt like an AEG, and the open bolt like a Tanaka M700.
If you are going to be crawling around in the muck and gunk, I personally would vote the closed bolt system. As the open bolt leaves the hop up exposed to dirt and other items that you wouldn't want in your system.