Tacstar Side Saddle Moss 500/590

The TacStar Side Saddle Moss 500/590 is a four-round shotshell carrier engineered for Mossberg 500 and 590 platform shotguns. This receiver-mounted accessory eliminates the need for pocket carry or sling-mounted ammunition storage by positioning extra rounds within immediate reach of the shooting hand. No gunsmith work or permanent modifications to the shotgun are required—the side saddle mounts cleanly with included hardware and provides functional clearance for extended forends, making it compatible with most barrel configurations.

The four-round capacity balances accessibility with minimal weight addition (0.38 lbs) and profile. Shells are retained securely in the carrier, preventing rattle or accidental loss during movement or recoil. The side-mounted design places ammunition directly in line with the firing hand for tactical reloads, reducing fumble time and allowing shooters to maintain target focus during reload sequences. This geometry differs markedly from stock-mounted carriers, which require cross-body reach and create longer reload sequences under stress.

Operators, law enforcement, and serious shotgun hunters use side saddle carriers to standardize their manual-of-arms during defensive drills, patrol duty, and field conditions where pocket carry is unreliable or unsafe. Hunting applications benefit from the quick-access architecture during live-fire scenarios where target transitions or follow-up shots demand rapid ammunition staging. The Mossberg 500/590 ecosystem remains the baseline platform for budget-conscious duty and recreational shotgun users, and the TacStar side saddle addresses the core reload-speed weakness inherent to pump-action shotguns.