Description

The Hydra 15 Modular Pistol (10.5″) is a fully assembled firearm designed around fast, end-user modularity in a compact configuration. It arrives complete and ready to fire, allowing users to configure caliber and magazine well combinations from one place instead of juggling multiple builds.

All configurations use a 10.5-inch stainless steel barrel with a medium profile. The platform is intentionally kept neutral across calibers rather than tuned for a single role. Whether you’re running rifle calibers or pistol calibers, the balance and handling remain consistent for a firearm of this size.

Operating systems are caliber-dependent by design. Rifle calibers run via direct impingement with a fixed gas system, keeping things simple and familiar. Pistol calibers operate using a direct blowback system. No tuning is required when changing calibers. Caliber swaps are tool-less and take roughly two minutes, while magazine well changes take about one minute using captured hardware. Everything is designed to be handled by the end user.

For 7.62×39 configurations, the system incorporates an enhanced bolt carrier group and a wider upper receiver to better accommodate AK-pattern magazines. The emphasis is on smooth compatibility when switching between different magazine types.

The pistol features a proprietary Hydra handguard, sized to match the shorter configuration. Two handguard options are available:

• A modular rail version that supports M-LOK, KeyMod, or Picatinny panels

• An M-LOK–only handguard option for users who prefer a lighter, simpler setup without modular panels

Furniture is provided by B5 Systems, keeping controls and ergonomics familiar right out of the box.

Available Magazine Wells

The Hydra 15 Modular Pistol supports multiple magazine well options, allowing the firearm to be configured around your preferred magazine type:

• AR (STANAG)

• AK

• Glock G17

• Glock G20

• MP5

• Colt-pattern stick magazines

One compatible magazine is included based on the selected magazine well.

Available Calibers

• 5.56 NATO

• 300 Blackout

• 7.62×39

• 9mm

• 10mm

• .45 ACP

What’s Included

• Complete Hydra® 15 pistol (10.5″ configuration)

• Bolt carrier group

• Charging handle

• One magazine matched to the selected magazine well

FFL Transfer & Legal Compliance Notice

This firearm must be shipped to a licensed Federal Firearms Licensee (FFL) for transfer. All transfers are subject to applicable federal, state, and local laws, including background check and eligibility requirements.

Certain state and local restrictions may apply. Buyers are responsible for confirming that this firearm is legal to purchase, possess, and transfer in their jurisdiction prior to ordering. Orders placed where prohibited cannot be completed. It is the buyer’s responsibility to ensure that any configuration, accessories, or modifications comply with current laws and regulations. Hydra Weaponry does not provide legal advice and makes no guarantees regarding how this firearm may be configured after transfer.