C-4 Plastic Explosive

C-4 plastic explosive is a weapon in Fallout: New Vegas.

Characteristics
Also known as Composition C-4, C-4 plastic explosive packs quite a punch. Being the standard-issue demolitions charge for the Army before the war, it's still finding much use in the harsh environment of the Mojave Wasteland. A remotely detonated charge, it can be implemented in many ways for effect and entertainment. Like most explosives, it can be reverse pickpocketed. The detonator is acquired separately. Unlike hand-held explosives like the frag grenade or dynamite, C-4 causes a huge explosion and should not be detonated until you have put a respectable distance between it and yourself.

It is possible to set up an ambush with C-4, though its high cost is a deterrent. Non-player characters who see you placing it may make remarks such as "I can see what you're doing!" but they will usually take no other action.

C-4 can also be easily placed on beds or chairs when the intended victim is awake/out of his/her seat/bed. (note: can kill multiple targets with this method, provided the beds/chairs are in close proximity to one another).

Reverse pickpocketing plastic explosive will arm it. If you detonate it while hidden, and stay hidden, you will not be blamed for the crime. Even if the target is dead the C-4 will still be present on their corpse and can be detonated. In fact, reverse-pickpocketing isn't necessary; if your target(s) stands in one place or revisits a spot regularly. You can drop a C-4 charge in plain view of anyone. As long as you detonate it while hidden, you will not suffer any ill reputation effects. However, if you hit your victim when throwing down the charge or if you fail to kill your target with the initial blast, they will be hostile to the player.

If you drop multiple C-4 charges, they will all go off when activating the detonator.

It is possible to trigger a C-4 charge without a detonator by shooting it. As long as you remain hidden, non-player characters will not become hostile.

It is an improved holdout weapon which can be brought into 'weapon free' areas such as casinos with a sneak skill of 50.

Locations

 * Can be found on the corpse of the man who attacks you in the Birds of a Feather quest.
 * It can be bought from Mick at Mick & Ralph's in Freeside if a speech check is passed.
 * 3 can be found in the Black Mountain Storage Room as part of Tabitha's Treasure Hunt
 * 3 can be found within the Vault 34 Armory.
 * Can be bought from the Arms Dealer at the 188 Trading Post.
 * Cliff Briscoe in the Dino Bite Gift Shop in Novac will randomly have them in his shop inventory
 * 1 can be found within Dead Wind Cavern.
 * 4 can be found inside Vault 19. One is hiding under the couch in the Northeast corner of the southwest room on the Living Quarters floor, which is in the in the Blue Quarters section. To get past the door, talk to Philip Lem and he will give you a pass key if you accept his quest. Another is in between the filing cabinets behind the desk in the Doctor's office. The third is between the two vending machines in the cafeteria, around the left side of the Nuka-Cola machine. The last C-4 is located just outside the locked underground entrance to the Overseer's office, between the door and the debris pile.
 * Can be bought from Chet in Goodsprings at random times
 * There is a chance of getting C-4 from explosives boxes in Ruby Hill Mine.
 * 2 can be found with a detonator in a footlocker at an NCR roadblock where you begin the quest Back in Your Own Backyard, east of the Toxic Dump Site.
 * 3 can be found with a detonator in a briefcase in the Lucky 38 Cocktail Lounge with a hard lock.
 * 4 can be found in Mick & Ralph's, however no detonator is found with them.
 * 1 can be found at Morning Star Cavern
 * Can be occasionally bought from the Gun Runners.
 * Can be bought from Johnson Nash in Primm.
 * Can be bought from Lacey in the Mojave Outpost Barracks, about 8 explosives and 1-2 detonator.
 * 2 total can be found in two floating, wooden Explosive crates on the east shore of the Colorado River near a small, unmarked cave with 4 lakelurks guarding 3 egg clutches. The small cave is south of the Hoover Dam. It is further south than the large cove just below the dam, round the next major bend in the river. One way to get there is to go north up the river from Cottonwood Cove.(It is also possible to travel Northeast of the Abandoned BoS Bunker, carefully climb down the cliff, and swim to the other side of the river. The lakelurks can attack from the bank while you're in the river so you may want to take care of them while on the cliff.)
 * About 6 can be found in the top level of Silver Peak Mine in explosives crates, just outside the fence-door behind which is a Remnants power armor helmet.
 * There's a chance that 8 can be purchased along with a detonator at Miguel's Pawn Shop.
 * 7 are found in Camp Guardian caves, 2 around the crate in the beginning of the cave and the other 5 are in the crate itself
 * 1 can be found in Nopah Cave, just South of Poseidon Gas Station.
 * 2 can be found on a super mutant master near a pile of cazador eggs south west of Ranger station Charlie.
 * 3 can be found with a detonator in Dead Money. Enter the Police Station via the west doorway. Turn north at Dog's cell to enter a short hallway & face west. Enter the first door on your right. In this room in an Average locked locker leaning in the north west corner of the room.
 * Occasionally can be found on dead Legionary assassins (though they never carry detonators).

Bugs

 * If live C-4 is placed in an non-player character's inventory, pickpocketing them again will show no C-4 on them. Although it will still detonate. This allows multiple C-4 to be placed on the non-player character. Although this serves no practical use, the combined force launches the body far further, sometimes through the top of the map if enough C-4 is used.
 * Attempting to equip the C4 from the Pip-Boy will cause the game to crash, the only way of using them is to hot-key them and use them from there.
 * The C-4 under the couch in the Living Quarters floor of Vault 19 may disappear. It can still be picked up by moving your cursor along the front of the couch.
 * Placing too many on top of each other at once will blow up without use of a detonator.

Gallery
Взрывчатка C-4