6mm of either .12 or .20 gram bbs. 6mm of either .12 or .20 gram bbs.
Everything in the proper gauge/size.
It's uses size .12 for best results.
System of changable shotgun choke tubes made by Mossberg. Accu Choke is their brand name. A shotgun choke is a means of reducing the bore size at the muzzle of a shotgun, to produce shot patterns that spread to a greater or lesser degree.
The Mossberg 500 shotgun typically takes 12-gauge shells, but it is also available in other gauges, such as 20-gauge and .410 bore. The shotgun can accommodate both standard-length shells (2.75 inches) and longer shells (3 inches) in the 12-gauge version. Always refer to the manufacturer's specifications for your specific model to ensure compatibility.
No.
6mm
If there's varying sizes of airsoft pellets, then each size will only work for airsoft guns intended to take that size pellet. Others will be either too small or too large, and could end up damaging your airsoft gun, or even getting stuck in the barrel.
Air soft shotgun shells are the size of 12 gauge shotgun shells.
Yes
BB's for air guns (NOT airsoft) only come in one size .175 commonly referred to as .177 caliber. If you want to know about airsoft BB's then you need to put the question in the "Airsoft category."
No it depends, you need to check the rail size of your rifle, then the sort of rail that the scope can attach to. These are some standard airsoft scopes, check your gun rail size first though!
Yes, the Mossberg?æ500 20 gauge ammunition can be used in the Mossberg .410 model. To find out if ammunition will fit, the Mossberg company stamps the size needed on the side of the barrel.