yes
Gauge indicates a shotgun, not a rifle. The 8 gauge has been out of production for many years, and was a black powder shotshell. The 8 g. is not legal for hunting in the US.
Remington
mossberg makes a pink shot gun, and remmington makes a 20gauge pink shotgun
It is difficult to find even 10 gauge shotgun ammo today. I have my doubts if 8 gauge shotgun ammo is even made any more, but corrections welcomed.
Iver Johnson
Yes, it is larger, the smaller the gauge the larger the bore i.e. 3 gauge is larger in diameter than a 8 gauge or a 12 gauge.
Market or kiln gun
mossburg
who makes the westernfield 12ga shotgun model m505a
a few hundred to multiple thousands depending on the usuals
it was make in 1989 i have one