GP-31 Grenade Pistol — Helldivers 2 Guide

The GP-31 Grenade Pistol is one of those rare secondary weapons in Helldivers 2 that fundamentally changes how you approach objectives and crowd control. While most sidearms are designed for last-resort encounters, the GP-31 doubles as a portable demolition tool capable of clearing nests, fabricators, and clustered enemies—all from your off-hand slot.

Overview & Acquisition

Unlocked from Page 3 of the Democratic Detonation Warbond for 60 Medals, the GP-31 instantly stands out for its hybrid identity: it's a one-handed explosive launcher disguised as a pistol. It fires 40 mm HEAT grenades that deal 250 ballistic + 400 explosive damage, with medium armor penetration (AP3). Its reload is modestly quick at 2 seconds, but its biggest limitation is ammunition—just one in the chamber and six spares.

The GP-31's firing rate (35 rpm) and recoil (43) feel snappy once you learn its arc. However, the projectile's high drag and heavy gravity factor require practice: every shot is a calculated lob rather than a straight-line blast.

Practical Uses & Strengths

What makes the GP-31 truly valuable is tactical flexibility. Its One-Handed trait allows use alongside mission-critical gear like the Ballistic Shield or SSSD Hard Drive, meaning you can still fight while carrying or defending. It fills the gap left when you equip non-explosive grenades—like stun or smoke—since the pistol can still destroy structures and hardened targets.

It excels at:

• Clearing nests or fabricators without calling in a stratagem.
• Neutralizing clusters of light to medium enemies via splash damage.
• Chipping heavy armor, such as Bile Spewers or Automaton tanks, by targeting exposed sections.

Its shockwave radius (8 m) and demolition force (30) make it surprisingly potent in tight corridors or defensive choke points. Experienced users leverage its arcing trajectory to hit enemies behind cover or over ridges—a rare advantage for a secondary.

For players looking to unlock the GP-31 or advance faster through the Warbond tiers, collecting medals efficiently is key. Those who prefer skipping the grind can buy Helldivers 2 medals cheap from trusted online sources, ensuring quick access to premium weapons and gear upgrades without long farming sessions.

Weaknesses & Limitations

The GP-31's weaknesses are mostly logistical. Ammunition is scarce, and Grenade Cases don't replenish it—only Resupply stratagems (4 rounds) and Ammo Boxes (2 rounds) do. Careless shooting will leave you dry fast.

At close range, its safety fuse prevents detonation, meaning direct hits may bounce harmlessly. Combined with limited velocity and gravity drop, this can frustrate new users. It also struggles against heavy armor beyond AP3—Juggernauts, Chargers, and Factory Striders require coordinated fire or stratagem support.

The weapon's steep learning curve also shouldn't be underestimated. Long-range accuracy takes genuine practice; hitting moving targets beyond 30 meters demands instinctive compensation for arc and timing.

Tips for Effective Use

• Practice with the arc in the Training Grounds before field missions.
• Pair with utility grenades like the G-23 Stun Grenade to maximize crowd control versatility.
• Prioritize high-value shots (spawners, tight clusters) rather than using it as a general sidearm.
• Keep count of your ammo—don't rely on random ammo crates to refill.
• Combine with Ballistic Shield builds for a strong defensive setup capable of returning explosive fire.

When mastered, the GP-31 is one of the most rewarding secondaries in the game. It turns your Helldiver into a compact demolitionist who can handle structural objectives solo—especially valuable in smaller teams or solo operations.

Summary

The GP-31 Grenade Pistol is not for everyone—it's unforgiving and demands precision. Yet for disciplined players who can manage its quirks, it delivers unmatched utility and power for a secondary weapon. Whether you're clearing infestations, supporting your squad with indirect fire, or running hybrid support builds, the GP-31 transforms tactical play into an art of timing and trajectory.

The GP-31 Grenade Pistol is a one-handed, high-impact secondary weapon that balances risk and reward. It's ideal for experienced players who value versatility and structure-clearing power over convenience. Properly managed, it offers explosive efficiency without sacrificing mobility or utility.