I have all the guns that you can collect in your hideout except for one...

The M1911 Can't be collected (even with an Action Replay). The gun that should be between the M14 and the Shotgun is the Mark III Rifle, and sadly, that can't be collected either.

You can't, but I got a staple gun once in my collection.

You guys are all wrong! That gun is the elephant rifle. It is in pappy Leblanc's room in the mission 'Til Death Do us part

Its... Uhh sorry I don't know maybe it is the elaphant rifle. But I know one thing weapans that can't be concealed can be placed in the box and it will go. Btw have you got the air gun.

Yes, that gun is the Elephant Rifle. You can find the Elephant rifle on the mission called Till Death Do Us Part. You know, the mission where you have to kill the Groom, and the Father of the bride? On that mission you can find the Elephant rifle in it's case, which can be found in the Attic. So if you want it, get a disguise then go have a look around. Hope this helps.

The real name is the "Elephant Rifle". On the mission 'Til Death Do Us Part, go into the attic. Look around there for a case. Inside, the elephant rifle is yours for the taking.

It is not the Elephant Gun. The Elephant Gun appears with the group of Sniper Rifles in the Hideout Level. There is a weapon slot for another rifle on the rack that includes the Shotgun and M14. You can only assume this slot is for the Mark III but you can only obtain a replica from one of the actors in Curtains Down... Perhaps this was another assassination option they ultimately decided to leave out of the game so there is no Mark III, or maybe I just can't find it.

I'm missing whatever gun that is as well. I have the elephant rifle and the air gun but still have a hole next to the m14 and shotgun. The shape of it is very similar to the m14 though, just minor differences, and I don't recall seeing anything else like that in the game.

There's a rifle in the room on mission heaven or hell when that somebody tries. To stab you kill her access the computer and the rifle case is right next to it.

The air rifle is in the club house on "New life"

The air rifle is in "new life" in the clubehouse.the gun that you are missing is right next to the desk in heaven or hell.

Between the m14 and shotgun is the mkIII the middle sniper is the elephant rifle the air rifle is next to the f2000 and the sg553

That gun is called a dragonov and there is an easier way to obtain it. Replay "death of a showman" and once you kill all the guards with it keep it untill you reach the office and put it in the assassin crate and it will be in the hideout when you get done the mission.