Pepper Wasp

The Pepper Wasp by Mercury Rise is a .43 caliber semi-automatic less lethal pistol powered by 8g CO₂ cartridges. At $119.95 it is one of the most affordable entry points into the less lethal market, offering an adjustable velocity range of 280–370 FPS, a 4-round magazine, and compatibility with .43 caliber pepper balls, rubber balls, powder rounds, and marking rounds. It is designed for personal protection and force-on-force training where a compact, lightweight platform is the priority.

Pepper Wasp | Quick Reference

.43calCaliber

370fpsMax Vel.

4rdsMag Cap.

~30mEff. Range

8g CO₂Power

$119Street Price

Manufacturer	Mercury Rise
Type	Semi-automatic pistol
Caliber	.43 cal
Power Source	8g CO₂ cartridge
Barrel Diameter	Unknown
Muzzle Velocity	280–370 FPS (adjustable)
Effective Range	~30 meters
Magazine Capacity	4 rounds
Construction	High-impact polymer with metal internals
Rail System	Picatinny (underbarrel)
Projectiles	.43 cal pepper balls, rubber balls, powder balls, marking rounds
Price Range	~$119.95

Design & Build Quality

The Pepper Wasp is built on a high-impact polymer frame with metal internals — the same material combination found in most consumer-tier less lethal pistols at this price point. At .43 caliber, it is one of the smaller projectile platforms on the market; the 4-round magazine keeps the form factor compact and the overall weight low. The quick-piercing CO₂ cap accepts standard 8g cartridges, which are smaller and cheaper than the 12g cartridges used by most Byrna and T4E platforms.

The underbarrel Picatinny rail accepts standard light and laser accessories. The adjustable velocity system — 280 to 370 FPS — allows the user to tune output for training use (lower velocity) or defensive deployment (higher velocity). At 370 FPS with a .43 caliber projectile, the Pepper Wasp sits in a comparable energy range to other consumer pistols at this class.

Performance & Ballistics

The .43 caliber projectile is smaller than the .50 and .68 caliber rounds used by most competing platforms. This means reduced kinetic energy and a smaller chemical payload volume in pepper ball variants compared to larger calibers. At 280–370 FPS adjustable, the Pepper Wasp’s output is competitive for its class. Effective range is approximately 30 meters — sufficient for most personal protection scenarios at realistic indoor and close-outdoor distances.

The 8g CO₂ format provides consistent shot-to-shot velocity for the 4-round magazine. Unlike 12g platforms that can sustain 15–20 shots, the 8g cartridge is sized for the magazine’s capacity — users who need sustained fire will be swapping cartridges frequently. This is an acceptable trade-off for a platform optimized for compact carry rather than high volume of fire.

Handling, Controls & Ergonomics

The compact form factor and low weight make the Pepper Wasp one of the more carry-friendly less lethal pistols available. The semi-automatic action cycles reliably across the 4-round magazine. The Picatinny rail expands its utility for users who want a weapon light or laser for low-light deployment. The adjustable velocity is an underappreciated feature — being able to reduce output for training purposes without a separate training platform is a practical advantage.

Ammunition Compatibility

The Pepper Wasp fires .43 caliber projectiles: pepper balls, rubber balls, powder balls, and marking rounds. The .43 caliber ecosystem is smaller than .50 or .68 caliber but sufficient for the personal protection use case this platform is designed for. Mercury Rise and compatible third-party suppliers provide the standard projectile types. Note that .43 caliber pepper ball chemical payload is smaller than .68 caliber variants — users prioritizing chemical deterrence capacity may prefer a larger caliber platform.

Known Issues & Limitations

4-round magazine limits sustained fire — frequent CO₂ cartridge swaps required for extended use
.43 cal carries less kinetic energy and smaller chemical payload than .50 or .68 cal alternatives
Smaller .43 cal projectile ecosystem compared to .50 and .68 cal platforms
8g CO₂ is less widely available than 12g cartridges
Limited retail presence — primarily direct and Amazon
Newer brand with less long-term durability data than established competitors

Accessories & Upgrade Ecosystem

Picatinny rail accessories — lights and laser mounts
8g CO₂ cartridges (standard)
.43 cal pepper balls, rubber balls, powder rounds, marking rounds
Spare 4-round magazines

Platform Summary

The Pepper Wasp occupies the entry-level segment of the less lethal pistol market: compact, lightweight, affordable, and capable of deploying chemical and impact projectiles at effective personal protection ranges. At $119.95 it is significantly cheaper than Byrna or T4E alternatives, with a smaller caliber and lower capacity as the trade-offs. For users who want a less lethal option at minimal cost, or a compact secondary platform for training use, the Pepper Wasp is a credible choice. Users who need higher capacity, larger caliber, or sustained fire capability should look at .50 or .68 caliber alternatives.