GP-31 Grenade Pistol
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“A pistol that fires grenades. Must be reloaded between shots.
— Armory Description
The GP-31 Grenade Pistol or GP is a single shot Secondary Weapon that fires powerful grenades at a medium range.
Procurement
It is unlocked on the Page 3 of Democratic Detonation Premium Warbond for 
60 Medals.
Detailed Weapon Statistics
| GP-31 Grenade Pistol | |
|---|---|
| Fire Rate | 900 rpm |
| Recoil | 43 |
| Capacity | 1 |
| Reload Time | 2 s |
| Spare Rounds | 6 |
| Starting Rounds | 4 |
| Rounds from Supply | 4 |
| Rounds from Ammo Box | 2 |
| Attacks | |
| Grenade 40mm HEAT | Projectile |
| Grenade 40mm HE Mk2 | Explosion |
| Grenade 40mm HEAT | |
|---|---|
| Projectile | |
| Caliber | 40 mm |
| Mass | 50 g |
| Initial Velocity | 100 m/s |
| Drag Factor | 120% |
| Gravity Factor | 100% |
| Penetration Slowdown | 25% |
| Damage | |
| Standard | 250 |
| vs. Durable | 250 |
| Penetration | |
| Direct |  Medium
|
| Slight Angle | Medium
|
| Large Angle | Medium
|
| Extreme Angle |  Unarmored I
|
| Special Effects | |
| Demolition Force | 30 |
| Stagger Force | 40 |
| Push Force | 10 |
| Grenade 40mm HE Mk2 | |
|---|---|
| Area of Effect | |
| Inner Radius | 2.25 m |
| Outer Radius | 6.5 m |
| Shockwave Radius | 8 m |
| Damage | |
| Inner Radius | 400 |
| Outer Radius | 399 - 0 |
| Penetration | |
| Inner Radius | Medium
|
| Outer Radius |  Light
|
| Shockwave | Medium
|
| AoE Effect | |
| Demolition Force | 30 |
| Stagger Force | 25 |
| Push Force | 30 |
Tactical Information
- The Grenade Pistol is a very useful utility secondary weapon, as it can inflict explosive damage.
- In particular, when used properly it is capable of destroying Terminid Nests and Automaton Fabricators, allowing the wielder to equip a different type of grenade such as G-23 Stun while retaining the ability to destroy enemy spawners.
- The explosive and splash nature of the grenades allows the Grenade Pistol to dispatch multiple enemies with a single shot, or inflict significant Structural damage to large body parts such as the thorax of Bile Spewers.
- Because of its significant falling arc, it can be very difficult to land precise shots at long distances since gravity must be accounted for. Be sure to practice in order to get used to the arc.
- Be wary when using this weapon, as it is very easy to exhaust its ammo supply. When picking up supplies from a Resupply or B-1 Supply Pack four grenades will be replenished, and when picking up an Ammo Box two grenades will be replenished; Grenade Cases do not replenish the Grenade Pistol. Be sure to balance grenade consumption with that of the primary and support weapons.
- Be careful when firing the Grenade Pistol at very close range, as the fuse has a range safety that prevents it from detonating too close to the wielder. If the grenade hits an enemy at point-blank range, it will simply bounce off and ricochet, exploding far from its intended target.
- The One Handed trait means that the Grenade Pistol can be used while holding items like the SSSD Hard Drive or while wielding the Ballistic Shield, and it will be automatically equipped in these cases if no other weapons with One Handed are equipped.
Media
Weapon Wheel for GP-31 Grenade Pistol
Third Person aiming with GP-31 Grenade Pistol
First Person aiming with GP-31 Grenade Pistol
Reloading GP-31 Grenade Pistol
Change History
Patch
Description
1.003.000
2025-05-13
Change
- Sway increased from 1 to 1.2
1.001.002
2024-08-06
Changes
- Decreased ammo capacity from 8 to 6.
- Increased the number of rounds replenished from an ammo box from 2 to 4.
- Moved into a Special sidearm category.
1.000.300
2024-04-29
Fixes
- Explosive weapons no longer pull players inward from the blast.
1.000.202
2024-04-11
(Mid-Patch)
Added to the game.