This gun is by far the best gun I've owned. Although the RPS lacks a little the fps makes up for it. ASGI chronoed my gun at 455 fps. You can quickly fix the rps by putting in a large battery, since it comes with a mini battery. This gun's stock is huge, but will not hold a large 10.8v. It maximum capacity is a 9.6v 4200mah with a converter. I have a 10.8v 4200mah powerizer battery and I had to buy an external battery pouch, but it was worth as the rps now is crazy. Now the range: I could hit a little satellite from about 200 feet away without the hop up set and .20g bb's. Now with the hop up set and using .25g bb's I can get it at 250-275 feet. Suggest that you but a tightbore barrel, so the groupings will better, but for a stock gun the groupings are very good.
Upgradeable for m16 parts
The other side of the selector switch fell off, but that doesn't matter since it wasn't functional anyways
Rating: [5 of 5 Stars!]