Rob Roberts Customs | Beretta A400 Xtreme Plus 000521RR | 12 Gauge

The A400 RR Custom Xtreme Plus is a full-size 12 gauge semi-automatic shotgun configured for waterfowl and field hunting applications. This Rob Roberts Customs example retains the A400 family layout with a 28-inch ventilated rib barrel and a right-hand synthetic stock. The shotgun is chambered for 3.5-inch shells and is built for patterning flexibility with included chokes. It suits extended-gear waterfowl setups and long-session field use where reliable cycling and reduced felt recoil matter.

Product Specifications

• The manufacturer is Rob Roberts Customs.
• The model designation is Beretta USA 000521RR A400 RR Custom Xtreme Plus.
• The UPC is 810174900057.
• The caliber/gauge is 12 Gauge.
• The action is Semi-Auto.
• The barrel length is 28 inches.
• The chamber size accepts 3.50 inch shells.
• The capacity is listed as 2 + 1.
• The choke type is Optima HP.
• The sights are a Bead.
• The safety is a Crossbolt.
• The hand is configured as Right Hand.
• The weight is listed at 7.40 lbs.
• The overall length is 49 inches.
• The shotgun includes factory chokes and three Rob Roberts chokes for patterning options.

This A400 RR Custom Xtreme Plus blends a long-barrel waterfowl profile with a pattern-focused choke package and a right-hand synthetic stock. It is presented for shooters who prioritize consistent patterning and a purpose-built configuration for migratory bird and field work.

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