Beretta USA 000518RR A400 RR Custom Xtreme Plus Full Size 12 Gauge Semi-Auto 3 1/2" 2+1 28" DC Southern Refuge Waterfowl Vent Rib Steel Barrel Optima HP Aluminum Receiver Synthetic Stock Right Hand

The Beretta USA A400 RR Custom Xtreme Plus Full Size 12 Gauge Semi-Auto by Rob Roberts Customs represents a purpose-built waterfowl platform engineered for serious hunters working seasonal marshes, coastal refuges, and remote impoundments. This 3½-inch magnum-rated shotgun combines Beretta's proven inertia-driven action with Rob Roberts' custom tuning and optimization, delivering reliable cycling across a wide range of 12-gauge loads while maintaining the ergonomics and handling that define the A400 platform in the field.

Built on an aluminum receiver paired with a 28-inch steel barrel chambered in 3½ inches, this shotgun achieves a field-ready weight of 10.8 pounds—manageable across long hunting days without fatigue-induced accuracy loss. The vent rib barrel setup facilitates consistent sight picture and quick target acquisition in dynamic waterfowl scenarios. The synthetic stock construction resists corrosion from salt spray and marshland humidity, critical for guns deployed in coastal or flood-prone environments. Beretta's Optima HP choke system allows field swaps to match changing water conditions and shot distances, while the 2+1 capacity meets regulatory compliance for most North American waterfowl seasons.

This right-hand configuration targets dedicated waterfowlers and refuge hunters who prioritize magazine-fed semi-automatic reliability over break-action simplicity. The A400 platform's proven track record in harsh field conditions, combined with Rob Roberts' custom finishing and tuning protocols, positions this shotgun as a specialized tool for extended duck and goose seasons rather than a general-purpose game gun.

Hunters evaluating 12-gauge waterfowl semiautos should consider magazine capacity regulations in their jurisdiction, chamber length compatibility with their preferred ammunition, and the maintenance demands of inertia-driven actions in muddy or frozen conditions. Rob Roberts Customs' reputation for fit-and-finish work supports the premium specification of this particular build.

TacticalSurplusUSA stocks this Beretta A400 RR Custom Xtreme Plus shotgun for serious waterfowlers seeking performance-verified equipment backed by Beretta's warranty and Rob Roberts' custom craftsmanship.