In 1930 Czechoslovak gunsmiths were initiated research and development (R & D) to create a new anti-infantry melee weapons. After the occupation of Czechoslovakia by Germany in 1939, these works were continued, but under the direction of and in cooperation with the German designers.
In 1940-1941 the Czech armourers company «Waffenwerke Brunn» (the name of the Czech group «Zbrojovka Brno» in the years of the German occupation) and German specialists weapons Academy SS «SS-Waffenakademie» Brno was developed 7.92-mm anti-magazine- gun «W/7.92» under German cartridge 7.92 mm h94 (Patrone 318), which in 1941 was accepted into service of the German Waffen SS troops with the designation «PzB M. SS 41 ».
Then it was developed and large-caliber single-shot anti-tank gun under the designation «W/15», which was designed for use with the Czech machine-gun cartridge 15x104 Brno from heavy machine gun ZB 60.
W/15 MFR is an enlarged and slightly modified version of the gun W/7.92 (PzB M. SS 41), but in the form of singly charged.
| Caliber, mm || 15x104 |
| Length mm || 1700 |
| Barrel length, mm || 1500 |
| Weight empty, kg || 18.5 |
| Rate of fire / min < td> 10 - 12 |
| Sighting range, m || 800 |
| Muzzle velocity, m / s || 900 |
| Penetration, |
(Distance / angle of incidence / piercing)
| 100 m / 90o / 28 mm |
300 m / 90o / 18 mm
Structurally this gun was made under the scheme «Bull-Pup» (an arrangement in which the locking mechanism is in the butt, the receiver is located behind the cartridges, and the box trigger, trigger guard and fire control handle ahead of the receiver window).
Locking and unlocking the gate was carried out due to the movement of rolling barrel. Cartridges are inserted from below into the recess with a special feeder, then, using the handle reloading trunk turned to the right, and disconnected from the shutter cocking the hammer spring. When moving the barrel forward his discovery occurred when reverse movement - Chuck was a member of the chamber and the barrel when turning left - it happened locking gate. Weapons ready to fire, and in this state can be inserted into the next cartridge feeder. Ejection port occurred when moving the barrel forward.
firing mechanism - striker type. Trigger mechanism is mounted in the pistol grip.
Unlike W/7.92 monogastric muzzle brake gated trunk W/15 stocked more efficient three-chamber muzzle brake, significantly reduces recoil.
mounted on the housing shoulder rest, in order to reduce the recoil force was equipped with a shock-absorbing cushion to the cheek.
In front of the lodge is a metal folding bipod.
Sights consisted of a strut-type front sight and folding sight. The sight was designed for fixed firing range - 300, 600 and 800 m, although the effective range does not exceed 300 m
When changing positions on the battlefield gun tolerated in carrying handle, and on the march arms fastened behind the arrow on the special device to carry with straps like a backpack.
Despite the much more powerful cartridge PTR W/15 had roughly the same military specifications, as well as at W/7.92, probably because of what it has not been put into mass production.
According to some sources
W/15 gun was never released commercially. On the other - a small batch of these weapons was delivered to Italy. By the third data - is a small amount of MFR's remained in the German units «Waffen SS» under the symbol «PzB 42» (Panzerbuchse 42 - anti-tank gun model 1942).