Diamondback Firearms Expands its DB15 Line with New .338 ARC Pistol. with Multi-Mag Compatability

COCOA, Fla. - Sept. 2, 2025 - PRLog -- Diamondback Firearms is proud to announce the launch of its new .338 ARC AR Pistol, designed for shooters who demand both innovation and reliability in a compact, high-performance package..

With .338 ARC gaining traction across the firearms community, Diamondback's engineers and product specialists have engineered a 10.5-inch AR pistol that not only delivers accuracy and stopping power but also solves one of the key pain points in the category: Magazine Compatibility and today, we're excited to announce we have engineered the DB15 338 ARC pistol to accept and run unmodified 6.5 Grendel, .400 Legend, and 7.62x39mm magazines, a significant achievement in a market where many struggle to achieve reliability across a single magazine platform.

"Our customers told us they wanted a .338 ARC platform that was turnkey and didn't lock them into proprietary parts," said Cody St. John, Product Specialist at Diamondback Firearms. "This pistol runs smoothly out of the box, with subsonic and supersonic loads accepting multiple magazine options that others simply can't match.

The Diamondback .338 ARC AR Pistol comes equipped with:

• 10.5-inch barrel with 1:5 twist rate for optimal stabilization
• SBA5 Pistol Brace for controlled, compact handling
• Superlative Arms adjustable gas block for easy tuning when suppressed
• Radiant ambidextrous controls, including safety selector, charging handle, takedown pins, and bolt catch for enhanced ergonomics
• 9" V3 M-LOK Anti-Rotation Rail with Full-length Picatinny
• 5/8x24 threaded barrel for suppressor and muzzle device compatibility

St. John added, "We designed this pistol to be as user-friendly as possible. We offer this as a complete firearm or just the upper that any mil-spec lower will accept; you don't need to worry about proprietary parts. It's a plug-and-play platform that delivers power, precision, and adaptability."

About Diamondback Firearms  :
Founded in 2009 and headquartered in Cocoa, Florida, Diamondback Firearms is dedicated to manufacturing high-quality, American-made firearms. With a reputation built on innovation, reliability, and precision engineering, Diamondback provides enthusiasts, law enforcement, and personal defense users with cutting-edge firearm solutions. For more information about Diamondback Firearms and its products, please visit www.diamondbackfirearms.com and www.diamondbackboats.com