Yes, Glenn, those are airsoft guns... In the photo, the weapon hanging on the wall on the left is an XM8 airsoft gun...I should know, I own one too...
UPDATE: Although, in most states, airsoft guns are required to have a bright orange tip which none of the weapons in the picture have. The orange tip on my XM8 was a removable tube, but most of the rest of my collection the tips are painted on the barrel.