Or something close to 20 anyways. I'm sure this list will depend on whether you're a hunter, a tactical sorta guy, a skeet shooter, a hunter, etc. No collectible type firearms. Only stuff that you would take out and use. Class/type of weapon, then I'll also list my more specific preferences. I'll start it:
O/U shotgun (Ruger Red Label, Redhead, Beretta, etc)
AR15 (Daniel Defense, etc.)
AK47 or some similar variant thereof (VZ58)
44Mag or 357 revolver (Ruger Security Six)
22 revolver (Ruger Single Six)
22 rifle (10/22)
Full size semi auto pistol (Glock in some caliber)
Full size semi auto pistol (Browning Hi power or clone)
Semi auto hunting shotgun (Remington 1100 or 11-87)
Brush hunting rifle (30/30 or Marlin Camp Carbine)
Long range rifle (Savage or Rem 700, or better)
Tactical semi auto shotgun (Mossberg JM Pro, etc)
Tactical pump shotgun (Remington 870 set up for HD)
22 Mag rifle (Marlin)
SKS (just because everybody should have at least one)
Side by side shotgun (just because everybody should have at least one)
S&W revolver (just because everybody should have at least one)
.45 semi auto pistol (Dan Wesson)
.22 semi auto pistol (Ruger Mk III)
Concealable semi auto or revolver (Sig P938 or KeltecPF9)
O/U shotgun (Ruger Red Label, Redhead, Beretta, etc)
AR15 (Daniel Defense, etc.)
AK47 or some similar variant thereof (VZ58)
44Mag or 357 revolver (Ruger Security Six)
22 revolver (Ruger Single Six)
22 rifle (10/22)
Full size semi auto pistol (Glock in some caliber)
Full size semi auto pistol (Browning Hi power or clone)
Semi auto hunting shotgun (Remington 1100 or 11-87)
Brush hunting rifle (30/30 or Marlin Camp Carbine)
Long range rifle (Savage or Rem 700, or better)
Tactical semi auto shotgun (Mossberg JM Pro, etc)
Tactical pump shotgun (Remington 870 set up for HD)
22 Mag rifle (Marlin)
SKS (just because everybody should have at least one)
Side by side shotgun (just because everybody should have at least one)
S&W revolver (just because everybody should have at least one)
.45 semi auto pistol (Dan Wesson)
.22 semi auto pistol (Ruger Mk III)
Concealable semi auto or revolver (Sig P938 or KeltecPF9)