echo 1 all metal m4 and the echo 1 platinum edition m4?

what is the difference between the all metal m4 and the platinum m4? just wondering, a friend of mine asked and i didnt know

So Fla Sniper wrote:

what is the difference between the all metal m4 and the platinum m4? just wondering, a friend of mine asked and i didnt know

the echo 1 all metal m4 is exactly that...all metal. it comes with echo 1's 8mm ball bearing gearbox, torque motor, m100 spring, 300mm inner barrel, and metal hop up unit. the battery, which is included, goes in the foregrip. the echo 1 platinum edition m4 is a collabration of echo 1 and VFC, both companies have made one gun that is complete from the start. it has almost all of the same features as the all metal m4, gearbox, torque motor, etc... the gun can take a variety of batteries from the start including LI-PO batteries. the battery is placed in the crane stock, which makes the gun very balanced and comfortable. the inner barrel is a bit longer, 363mm, but both barrels should be upgraded to a tightbore barrel for better preformance. the platinum m4 does have a bit higher velocity, it shoots about 415fps with .20g and the all metal m4 shoots around 360-370fps with .20g. both guns are well made and i highly recommend either one of them to you or your friend. for anymore information please visit us in the store and we will be more than happy to go over these details once more

thanks, ill stop by this week to look at both guns