RAP99, only similiarities are the realism and use of .43 caliber paintballs.
RAM1R with CASV EL handguard, Magpul CTR Stock, Eotech 557, 3x Magnifier, folding grip and tri rail mount.
More magazines, 60gr gas tank.
Only for true MILSIM players
I refer to it as RAM 1R because RAP4 simply rebrands, they dont make these. The oficial distributer in USA is Umarex, and they are sold to the rest of the world by APS and manufactured by QianWei Paintball in China. I bought mine from an oficial APS distributor here in Argentina. Overall it is a great marker. I have always wanted a trully realistic paintball marker and this is as good as it gets. 20 round magazines, shell ejecting, no hopper, no big gas tanks and no remote lines. From up close it looks exactly as a real M-4 and its overall operation is quite similar. Its weight is a bit more than the real M-4 too.
I loved it from the beggining and knew I was going to require a big budget. I got a lot of external upgrades for it, but also 5 spare mags which are quite expensive and the 60gr gas tank. Internally it is VERY compex, but sense it was several of us in the team that got the marker we bought one maintanaince kit that comes with all the tools required to maintain and fix the marker. Once you get the hang of it you realize its not all that complicated.
The biggest draw back is that you have limited supply of CO2, enough for 8 mags at most. Which means that sometimes I just resort to taking out the stock and playing with a 9 ounce tank screwed in the back and use that a stock. It doesnt look as good but I dont need to refill my tank as often. Actually the 9 ounces seem eternal.
Other issue is that you need to use it at 400-450 FPS and some fields wont allow it. But we have found that most MILSIM games do.
Its a great product a long as you are aiming for true realism and are willing to spend a lot of extra money on magazines.