One Horse launched the Express Retros on November 8, 2026, with two 5.56 firearms built with Atrius Development Group and factory-installed Atrius Mil-Spec Forced Reset Selectors. Sarge is a rifle honoring U.S. Army Vietnam Veteran Don Morgan, and Archie is an NFA short-barreled rifle named posthumously for the A-Gunner who served with U.S. Army Vietnam Veteran Carl J. Vondielingen, both linked to Brownstown, Indiana.

The family-owned, veteran-owned firm added carry handles, clamshell handguards, and Vietnam-era silhouettes to its Express Series and will donate 5 percent of gross November 2026 sales of those firearms to Columbus Indiana Huey Inc., which keeps a UH-1 Huey as a flying museum while honoring veterans.

Direct sales run until January 2027 before dealer availability, and a factory selector does not override state bans or NFA short-barrel limits following the May 2025 Justice Department and ATF settlement of forced-reset trigger cases.