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Hydra Weaponry MARCK-15 Modular rifle platform available to all Americans – even in California.

Hermon, Maine (June 2024) – Hydra Weaponry, Maine’s largest firearms employer, designers, and manufacturers of the truly modular MARCK-15 Hydra® Weapon System, believe ownership of an AR-style firearm should not be denied to any lawful and legal American, including Californians. In response to all the compliance regulations California has dumped on its citizens, Hydra Weaponry offers a Cali-Compliant MARCK-15 Modular Rifle.

The Cali-Compliant rifle is set up as a 5.56 x 45 on a Hydra® Modular Lower Receiver with an AR mag well. The compliant 10-round AR magazine is fixed. The upper receiver is Hydra’s Quick-Change Barrel upper (QCB-D) with a 16-inch 5.56 bull-nose barrel with no gas port. The Hydra Modified Bolt Carrier with a 5.56 bolt and firing pin and a Hydra D-Fender D-Ring are all part of this unique modular system that serves as the base for additional multiple caliber conversions. The Cali-Compliant MARCK-15 rifle is built on a B5 Systems pistol-grip stock.

“Our Cali-Compliant MARCK-15 rifle features the same key elements of modularity, accuracy, and consistent performance as any of our other MARCK-15 models, but with all the state regulations of California built in,” Mack Gwinn, CEO of Hydra Weaponry added.

Cali-Compliant MARCK-15 Specifications:

Caliber:                               5.56 x 45

Length:                               21”

Height:                                7”

Width:                                3”

Barrell Length:                  16:

Furniture:                          B5 Systems

Color:                                  Black

Inserts:                               M-LOK, Keymod, Picatinny

MSRP:                                 $1,399.00 – $1,537.99

For more information on Hydra Weaponry, visit the new website at

About Hydra Weaponry:

Headquartered in Maine, Hydra Weaponry has 50 years of firearms innovation in its DNA. Starting with the development of the Bushmaster pistol, rifle, and submachine gun, the Gwinn family has set a high standard of designing innovative firearm platforms built around the actual needs of tactical operators, often fighting in extreme conditions and environments. The MARCK-15 Hydra Modular Weapons System is the ultimate modular platform that designer Mack Gwinn, Jr. created to meet the criteria of modularity, durability, consistent performance, accuracy, and affordable. Hydra Weaponry is the future of small arms.