12.7mm Submachine Gun

The 12.7mm submachine gun is a weapon in Fallout: New Vegas.

Characteristics
More common in higher levels, the 12.7mm submachine gun is a heavy-duty large caliber submachine gun (SMG). It features a unique top-mounted magazine, which lies parallel to the weapon's barrel, much like the P90c. It boasts a high damage-per-second, but suffers from a small magazine capacity and a fairly large spread, however this spread is less than that of the 10mm SMG (as of patch 1.3.0.452). It is also one of only two fully automatic weapons which are capable of being silenced, (the silencer is not to be confused with the 12.7mm pistol silencer, as they are not interchangeable), the other being the silenced .22 SMG.

Unlike other submachine guns, the 12.7mm submachine gun is classified as a two-handed weapon; because of this, traveling with the weapon unholstered will slow the player character's movement speed. This also causes the weapon to be holstered on the back, rather than on the hip as with other SMGs. This also affects it with regard to the jury rigging perk, putting it in the same repair class as the service rifle and light machine gun, instead of with one-handed automatics like the 10mm SMG and 9mm SMG.

Modification

 * 12.7mm submachine gun silencer - silences the weapon.

Locations

 * Bloodborne cave - behind a very hard locked gate in a box along with just under 8000 caps. There is a key to the gate lying by the campfire in the back of the cave (be wary of the tripwire behind the gate).
 * Great Khans have been observed having the weapon on them in relatively low condition at higher levels.
 * Gun Runners - the Vendortron sells one.
 * Hidden Valley Bunker - it can sometimes be bought from Knight Torres.
 * The Fort - can be obtained from Legion soldiers.
 * Commonly found on Legion Vexillarius at higher levels.
 * At higher levels, this can be bought from various weapon merchants.
 * In the Honest Hearts add-on, it is used often by the White Legs at higher levels.
 * At higher levels, Legionary assassins will carry this weapon.
 * May randomly be found on human enemies in Lonesome Road
 * Ulysses carries one in Lonesome Road

Behind the scenes

 * The 12.7mm SMG is almost entirely fictional, though a couple of elements were loosely inspired by the FN P90 and TDI Vector.
 * Most real life .50 caliber bullets will measure to 12.7mm. From the .50AE pistol round., to the .50 BMG Heavy Machinegun/Sniper rifle round. The Fallout: New Vegas 12.7mm submachine gun is a .50 caliber weapon, most likely firing the Fallout Universe's fictional version of the .50AE pistol round.