The PG-1 Piorun (Polish for Piechota Granatnik 1 "Piorun"), named after the Polish name of the Slavic god of thunder, is a grenade launcher manufactured by NS Arms Corporation. It was designed to provide rapid explosive firepower to enemy infantry that is mobile enough to be transported, yet is damaging used against infantry and soft-skinned vehicles.
Following their success on developing the single-shot Granatnik wz.15 alongside the ANSh-15, the armourers felt that they have to step up even further in designing grenade launchers. The aim was to come up with a lethal projectile launcher, yet is light enough and easily be taken down for ease of transport and mobility.
The overall design bears a resemblance to, and was heavily influenced by, the Czech Republic-manufactured RAG/SAG-30 grenade launcher. The PG-1 is fed from a 5-round magazine loaded on top of the weapon. The grenades are of the 35mm calibre, with a caseless design, much like its predecessor. It operates via the blowback action. Two variants are available; the infantry variant and the vehicle-mounted variant. It can be broken down into several components for ease of carry.
- Weight: 11.2 kg (24.7 lbs) [infantry variant]
13.2 kg (29.1lbs) [vehicle variant]
- Length: 40 in. (101.6 cm) [infantry variant]
27 in. (68.6 cm) [vehicle variant]
- Barrel length: 12 in. (30 cm)
- Cartridge: 35mm caseless
- Operation: Straight blowback
- Rate of fire: 280 rounds/min
- Fire mode: Safe, full-auto
- Muzzle velocity: 100 m/s (328 ft/s)
- Effective range: 400 m (437.5 yds)
- Feed system: 5-round top-loaded magazine
- Sights: Foldable, adjustable ladder sights
- Attachments: Bipods, carry handle