Description

The Hydra 15 Modular Rifle is a fully assembled rifle designed around fast, end-user modularity. It ships complete and ready to fire, with all caliber and magazine well options configured from a single product page.

All configurations use a 16-inch stainless steel barrel with a medium profile. The platform is intentionally kept neutral across calibers rather than optimized for only one role. Whether you’re running rifle calibers or pistol calibers, the handling and balance stay consistent.

The operating system is direct impingement with a fixed gas setup, keeping things simple and familiar. 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 done by the end user, not an armorer.

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

The rifle features a proprietary Hydra handguard, approximately 12 inches in length. 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 want a simpler, lighter setup without modular panels

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

Available Magazine Wells

The Hydra 15 supports multiple magazine well options, allowing the rifle 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 with the rifle 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 rifle

• Bolt carrier group

• Charging handle

• One magazine matched to the selected magazine well