Experience the future of firearms with live demos, exclusive products, and a chance to win a $3,500 Hydra Survival Package (4 Caliber Kit).
Hampden, Maine (July 2025) – Hydra Weaponry, Maine’s largest firearms employer, designer, and manufacturer of the truly modular Hydra® Weapon System, is proud to announce its attendance at the 2025 Sturgis Gun Rally, the Ultimate Firearms & Biker Event. Taking place Aug. 1–7, 2025, in Sturgis, South Dakota, the event coincides with the legendary 85th Sturgis Motorcycle Rally and is set to host thousands of firearms enthusiasts and industry leaders.
Hydra Weaponry will be on-site with a full complement of its cutting-edge modular rifles, the acclaimed MGI Rate & Recoil Reducing Buffers (AR10 and 5.56), and the renowned Mack Gwinn Jr. muzzle brake. Show attendees will also get an up-close look at the complete HYDRA Survival Package (4 Caliber Kit)—a modular powerhouse that combines four calibers in one tactical-ready case—and have a chance to win it in a high-profile giveaway hosted by the Sturgis Gun Rally. Valued at $3,500, this rugged, ready-to-deploy system includes:
- 9mm Hydra Rifle (Colt-style or MP5 mag compatible)
- 56 NATO Conversion Kit
- 62 x 39 Conversion Kit
- .300 Blackout Barrel Assembly
- Magazines for all calibers
- Hydra Modified Bolt Carrier Groups and D-Fender D-Rings
- Durable tactical case (30” x 15” x 5”, 20 lbs.) with full- and carbine-length rail compatibility (Mlok, Keymod, Picatinny)

Image courtesy of Regional Operations.
Every rifle and component is test-fired and built for peak modular performance, reliability, and adaptability in any mission or environment.
“Sturgis is where freedom, firearms, and American innovation meet. We’re excited to showcase the full potential of the Hydra system—and even more excited to put one lucky attendee behind a four-caliber powerhouse like our Survival Package,” said Mack Gwinn III, Owner of Hydra Weaponry.
The Sturgis Gun Rally will take place daily from 9 a.m. to 4 p.m. at 2651 Whitewood Service Road, Sturgis, SD, with vendors exclusively from the firearms industry. 85 firearms, 850 parts and accessories, and 8,500 rounds of ammo will be given away throughout the event. Attendees can expect live demos, food vendors, and exclusive product showcases, as well as meet-and-greets with top brands and manufacturers. All attendees will receive free entry.
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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 Hydra-15 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.
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