PM 12 S
cal. 9 mm Parabellum

General description

The Beretta PM 12S sub-machine gun is a 9 mm Parabellum blowback weapon which has both semi-automatic and full-automatic fire capabilities.
The telescopic bolt, which encloses the barrel (200 mm long) for three quarters of its length, makes the weapon very compact and reduces to a minimum the upward movement of the muzzle during firing.
The front grip, the magazine housing, the trigger guard with firing device and manual and automatic safety devices are all in a one-piece assembly and are integral parts of the receiver. This gives solidity to the weapon and ensures good performance over the years.
Longitudinal grooves along the whole length of the receiver allow excellent sliding of the bolt even in extremely adverse conditions (fall of the weapon in mud and exposure to dust and sand).
The PM 12S's sturdiness and its total reliability in different latitudes can easily be seen in the general structure of the weapon and in the dimensions of its component parts, as also in the extreme simplicity of design and assembly.

Devices and controls

The selector device allows for an easy selection of three positions, namely: "manual safety" (S), "single shot" (1), "full automatic fire" (R), without any need for removing the hand from the grip.
The automatic safety, which locks the trigger and the bolt in its closed position, safeguards from accidental firing if the gun is dropped and precludes firing if the grip is not firmly held.
The fixed firing pin can strike the primer only when the cartridge is fully chambered, avoiding accidental firing, since the weapon fires from the "open bolt" position.
The front sight, adjustable in elevation and windage, and rear sight with 100 mt. or 200 mt. flip aperture allow accurate aimed fire and are well protected from impacts.
The sturdy folding butt can be safety locked in the "open" position. When folded, the butt runs along the side of the receiver in the most practical position.
The exterior surfaces of the weapon, finished (after phosphate treatment) with epoxy resin coating, guarantee the best possible protection against corrosion and maximum resistance to wear and abrasions.

Accessories (on request)

- 32-round spare magazine
- Magazine changers
- Hemp sling
- Frontsight adjusting tool
- Ammunition: ball, propulsive, drill
- Tear gas grenade which utilizes a special propulsive cartridge and which only needs the replacement of the recoil spring and the receiver rear cap.

Special purpose accessories

High power illuminator grip.
It uses a special rechatgeable battery lodged
inside the grip itself.

Night vision scope (light intensificator).

Aiming beam laser.

N.B.: The night vision scope and the aiming beam laser need a support fixed to the receiver.

Silencer (this requires a modified barrel).

SPECIFICATIONS

Calibre and ammunition:	9 mm Parabellum (9 mm x 19 Nato standard)
Operation:	blowback
Fire selector:	full-automatic and semi-automatic fire
Overall length:	660 mm
Length, with folded butt:	418 mm
Barrel length:	200 mm
Line of sight:	285 mm
Height (without magazine):	180 mm
Height (with magazine):	244 mm
Weight (with empty magazine) approx.:	3,430 kg.
Weight (with full magazine) approx.:	3,770 kg.
Magazine:	32 rounds
Rifling:	6 grooves R.H.
Pitch of rifling:	250 mm
Rearsight:	2 positions flip aperture (up to 100 mt. and up to 200 mt.)
Frontsight:	adjustable for elevation and windage
Safeties:	manual which blocks the trigger through the automatic safety; automatic on the rear grip which immobilizes the trigger and blocks the bolt in a closed position
Cyclic rate of fire (rounds per minute) approx.:	550
Muzzle velocity (Vo) approx.:	430 mt./sec.
Muzzle energy (Eo) approx.:	77 kgm.