Adler HT-104 12 Gauge 18.5" 5-Round Semi-Auto Shotgun

The Adler HT-104 12 Gauge 18.5" 5-Round Semi-Auto Shotgun is a purpose-built platform designed for tactical operators, law enforcement, and home defense users who demand reliability and rapid follow-up capability. The 18.5-inch barrel length strikes the critical balance between maneuverability in confined spaces and velocity retention—ideal for breaching operations, vehicle interdiction, and close-quarters engagement profiles common in tactical applications. This semi-automatic design eliminates the manual pump cycle required by traditional shotguns, allowing shooters to focus on target acquisition and threat assessment rather than cycling mechanics.

Built on the proven inertia-driven semi-auto platform, the Adler HT-104 cycles reliably across a full spectrum of 12-gauge loads, from light target rounds to full-power 00 buckshot without adjustment or tuning. The 5-round magazine capacity provides sufficient firepower for dynamic tactical scenarios while maintaining a lightweight, maneuverable profile at 10.9 pounds—comparable to rifle-carbine systems. The compact 45-inch overall length ensures clearance through doorways and vehicle interiors, while the 3.8-inch width accommodates standard tactical sling and accessory mounting points without compromising ergonomics.

Law enforcement tactical teams, military units, and civilian defensive shooters benefit from this platform's inherent speed advantages over pump-action alternatives—each round chambers with minimal shooter input, reducing cycle time and increasing hit probability under stress. The Adler HT-104 pairs effectively with slug ammunition for precision engagements or buckshot for multi-threat scenarios; users should verify their jurisdiction's regulations regarding semi-automatic shotgun ownership and ammunition type restrictions. Proper maintenance of the inertia system and regular inspection of the magazine feed lips ensure consistent reliability in high-round-count training and operational deployments.