any its not about the weight but the caliber. all airsoft bbs are the same diameter unless theyre a crappy off brand but a .12 gram will shoot out of a gun just as a .52 gram will. but dont use either one in an r73. idk your fps but .20 gram or .25 is probably the best
There is a small door leading to the hopper on the top of the scope, just fill that up.
Actually, its a gravity fed rifle and it the hopper can hold 500 bbs in the hopper, and it fires around 275 fps.
in the scope its a slide on the top put the scope on the gun aligned with the hole in the gun and scope then pour bbs into the scope
Apparently Not. See the link below.
The gun comes with one.
If you have a local hobby shop, from there. Otherwise, you will have to ship it in.
See the link below for the owners manual
That is a question that has a 50/50 chance of each. You would have to state why and what you would be using that for.
Charging time is 4 to 6 hrs See the link below
The R71 holds more rounds and is Semi and full auto and cost less. It's a better bang for your buck.
if you put the scope on right to where the arrow on the scope is even with the arrow on the gun then at the top of the scope there is a nob thing if you push that forward you see the inside of the scope then you put the bbs in but don't worry you can still see through the scope
The scope on the R73 is a fake scope. It really a see through Hopper. You can not replace it with a real scope. You have to use it to fill the gun with BB's.