M4/M16
Magazine Speedloader 

Cartridge
speedloader is a very interesting alternative for
standard syringes. This one utilizes rotation, the device is powered by a
crank. In contrast to standard syringes, the cartridge can store up to around
1000 BBs  and once you get used to the
new way of loading magazine, a standard Mid-Cap magazine can be loading within
4-5 seconds.

Thanks
to the implementation of a standard M4 magazine socket, the speedloader
is compatible with majority of magazines of this type. The magazines attached
to the speedloader fit there in a stable way and
their filling, even in difficult condition on the battlefield, will not be a
problem. The entirety is made from a durable polymer. The size of the speedloader allows for its carrying in a double pouch for
M4 magazines.