No it's not designed to do it.
pellet=no bb's= 6mm plastic not copper.
No, if you are talking about bb's for a BB gun. The BB's for an air rifle or BB gun wont even stay in a Magazine for an airsoft gun. Airsoft BB's are 6mm, air rifle bb's are much smaller. You will ruin an airsoft gun with the smaller metal bbs. But you can get aluminum 6mm pellets for an airsoft gun.
It cannot use metal bb's. It will A: break the gun or B: get you arrested.
Which one is more expensive? Your airsoft guns or BBs? Buy only good quality BBs!
Probably not- that is a LOT of BBs. What does the manual for your gun say?
.20 gram bbs
I do not know of a production airsoft gun that shoots bbs of those dimentions but it doesnt mean its not out there As you probably know, most common is 6mm, and some airsoft guns, specifically some revolvers, shoot 8mm bb's, but I have never heard of a 7mm bb or a gun that shoots it.
Yes. .12 grams is the weight of the BB, not the size. Almost all airsoft guns use 6mm BBs. .20 gram BBs are heavier and reduce distance and velocity, but increase accuracy. .12 gram BBs will fire with more velocity, but there will be more spin on the BB and less accuracy.
NO- they shoot large diameter plastic BBs. In general, they do not have the power of the traditional BB gun.
Airsoft guns aren't designed to fire metal BBs.
if you are talking about the airsoft gun, you can use any type of bb/bullet. The best and fastest bullet are 0.20 gram bbs.
The Magnum Research Baby Desert Eagle shoots Metal BB's. It is an Air gun not Airsoft. But Magnum Research also makes a Desert Eagle ( Not Baby) that is an airsoft pistol that shoots Plastic BB's