I think the shotgun is meant to be a Benelli M3. It is actually an airsoft replica, a rather cheap one based on how the ejection port is just a moulded part of the receiver. Below is one that seems to match (short barrel, shoulder stock, same ejection port):
Also, the AR looks like a Well fire M4 RIS:Error creating thumbnail: File missingWellfire M4 RIS Airsoft rifleThe barrel profile is fictitious, as is the combination of a flat top without a brass deflector. --commando552 (talk) 17:12, 13 November 2016 (EST)
As for the pistols, the two in the tray are the brigadier slided Beretta Airsoft gun and a P226 with front slide serrations, next two pictures are a Kimber Warrior, not enough of the last pistol is seen to ID it positively, but it looks like this Airsoft gun to me: