Unlike traditional paintball markers that rely on gravity and a hopper for reloading, the RAP17 from RAP4 loads through a bottom-mounted magazine just like a real Glock 17. This gives users an incredibly feeling for War Games and SWAT simulations. Due to these many outstanding features, the RAP17 is undeniably the best non-lethal glock replica in the market. Many branches of the U.S. military and local law enforcement already use our RAP4 and RAP17 in their training camps and simulations. The RAP4 and RAP17 are so much better than the aluminum markers because it is designed and built exactly like a real M4 assault rifle and Glock 17. This makes them the PERFECT markers for military training, SWAT simulations, and competitive War Games.