Collect All Weapons in Hitman: Blood Money

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These are all of the weapons that you can collect throughout the game, a total of twenty. You can play around with them at your Hideout afterwards (with the exception of the Nailer).

To successfully collect a weapon it must either be on you, safely stored inside a Weapons Crate, or inside your ICA Crate at the end of a mission. You can bring in any of these weapons to use in another mission and leave it behind without penalty.

The information on each weapon and is broken down as follows (if applicable):

Missions: What missions the weapon appears in.
Based on: What real life weapon this is based on.
Magazine Capacity: How many rounds the magazine of the weapon holds.
Uses: What type of ammo the weapon uses.
Notes: Information on the weapon or item.

Melee Weapons

These weapons are unusual in that even though they fire projectiles they are considered melee weapons.

Nailer — Missions: Curtains Down, A New Life, Amendment XXV. Magazine Capacity: 50 rounds. Ammo Type: Nails. Notes: This nail gun doesn't do much damage and can be considered a "fun" weapon to play with. It is the only weapon that is not available at your Hideout. Even though it is a tool is is considered a weapon and you need to be in an appropriate disguise before bring it out into the open.
Air Rifle — Missions: A New Life. Based on: Beeman Break Barrel. Magazine Capacity: 1 round. Ammo Type: Darts/Tranquilizer. Notes: This is considered a melee weapon because of its non-lethal nature. This weapon has a two level zoom mode and fires Tranquilizer Darts to Sedate people from afar. Because of its small magazine you get only a couple of shots when you bring it into a mission thus making it nearly useless.

Pistols

These easily concealable weapons can take down people from a distance. However, most of them tend to make a lot of noise which will attract unwanted attention and all have some degree of recoil.

SLP .40 Pistol — Missions: Death of a Showman, Curtains Down, Flatline, A New Life, The Murder of Crows, You Better Watch Out..., A House of Cards, A Dance with the Devil, Amendment XXV. Based on: Heckler & Koch USP40. Magazine Capacity: 12 rounds. Ammo Type: .45 ACP. Notes: This is a basic pistol that can be easily found on most of the missions and has decent accuracy and power.
SLP .40 .S — Missions: The Murder of Crows, A House of Cards. Based on: Heckler & Koch USP40. Magazine Capacity: 12 rounds. Ammo Type: .45 ACP. Notes: This is the exact same weapon as above but silenced. If you need to bring in a pistol outside of your Silverballer then this is a good choice because of its silenced nature and the fact that its un-silenced cousin is the most common weapon in the game allowing you to acquire lots of ammo if needed.
Snub Nosed — Missions: A Vintage Year, Death on the Mississippi. Based on: Smith & Wesson Model 686. Magazine Capacity: 6 rounds. Ammo Type: Pistol. Notes: This is a small snub-nosed revolver. It fires somewhat slowly and has a longer reload than the SLP. 40 Pistol.
Six Shooter — Missions: ...Till Death Do Us Part. Based on: Schofield Model 3. Magazine Capacity: 6 rounds. Ammo Type: Pistol. Notes: This is a longer barreled revolver. It fires a bit faster than the Snub Nosed but has a much longer reload time.
Desert Eagle — Missions: Death of a Showman, The Murder of Crows, Death on the Mississippi, A Dance with the Devil, Amendment XXV. Magazine Capacity: 9 rounds. Ammo Type: Magnum. Notes: This powerful pistol has solid stopping power and a decent rate of fire.
Bull .480 — Missions: A New Life, Death on the Mississippi. Based on: Taurus Raging Bull. Magazine Capacity: 6 rounds. Ammo Type: Bull. Notes: This huge powerful revolver has solid stopping power but has a slow rate of fire and slow reload.

Sub-Machine Guns

These easily concealable weapons can clear out an area of bad guys in a hurry.