Currently, frontline PLA troops use the distinctive QBZ-95 rifle, which has a bullpup configuration. Bullpup rifles are distinguished from conventional assault rifles like the AK-47 and M-16 in that the receiver (the section of the firearm with the magazine, firing chamber and reloading mechanism) is located behind the trigger. This allows bullpup rifles to be shorter and lighter compared to conventional rifles of the same barrel length. However, the rearward location of the gun's center of gravity can make bullpups harder to fire for inexperienced users, as well as present difficulties in reaching to change magazines and or use safety and selective firing switches. Currently, Austria, Belgium, China, France, Great Britain and Singapore all manufacture and use bullpup rifles for their frontline forces.