The Shooter’s Companion

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An independent reference on sporting shotguns, for shooters, collectors, buyers and sellers.

Beretta
A300 Ultima

A gas-operated semi-automatic for hunting and clays, with enlarged controls and Kick-Off recoil reduction

A300 Ultima · USA300 Ultima · Other

Drawing of a Beretta A300 Ultima from the right: one barrel, a stepped top rib with two sights, an ejection port with enlarged controls, a polymer stock with a soft cheekpiece and a semi-square trigger guard.
Drawing: 12-bore synthetic field, 28 in, right side

he A300 Ultima is Beretta’s gas-operated hunting , recognisable by its enlarged controls and low-profile receiver.1, 2, 3, 4 Guns from the launch range have a stepped , a mid-bead and a large fibre-optic front sight.5 Kick-Off recoil reduction comes as standard.6

The gun locks with a falling-block bolt, and a gas valve releases excess pressure automatically.7, 4 The barrel takes Beretta Mobilchoke tubes.8 The Sporting version adds extended tubes, a white front bead and green accents over metallic grey and black.9, 10, 11

Specifications

12-bore · game

LockingFalling-block bolt7, 12
LockworkGas operation with an exhaust valve7, 12
Introducedby 202113, 14
Bore12-bore
ChokesMobilchoke; removable

13, 14, 5, 15, 8, 16 Compare specifications

Specifications

ConfigurationBoreChambersBarrels, inRib, mmGradeChoke systemYearsWeightMarketsStock
Game
Game13, 14, 5, 15, 8, 1612-bore7Black SyntheticMobilchoke; removable2021US
Game13, 14, 5, 15, 8, 1620-bore7Black SyntheticMobilchoke; removable2021US
Game13, 14, 5, 15, 8, 1612-bore7Realtree MAX-5Mobilchoke; removable2021US
Game13, 14, 5, 15, 8, 1620-bore7Realtree MAX-5Mobilchoke; removable2021US
Game13, 14, 5, 15, 8, 1612-bore7Mossy Oak BottomlandMobilchoke; removable2021US
Game13, 14, 5, 15, 8, 1620-bore7Mossy Oak BottomlandMobilchoke; removable2021US
Game20, 21, 812-bore76 mm (3 in)28SyntheticMobilchoke; removable20253.4 kg (7 lb 8 oz; catalogue, 28 in)Other
Game20, 21, 820-bore76 mm (3 in)28SyntheticMobilchoke; removable2025Other
Game20, 21, 812-bore76 mm (3 in)28MAX 7Mobilchoke; removable20253.4 kg (7 lb 8 oz; catalogue, 28 in)Other
Game20, 21, 820-bore76 mm (3 in)28MAX 7Mobilchoke; removable2025Other
Game22, 23, 8, 1612-bore76 mm (3 in)287Mobilchoke; removable; 3 tubes2022350.52 mm pull
Sporting
Sporting24, 10, 9, 25, 11, 812-bore307SportingMobilchoke; removable2023US
Sporting24, 10, 9, 25, 11, 820-bore287SportingMobilchoke; removable2023US

Scroll for more columns.

Identify and date

The A300 Ultima is made in the USA.26

The receiver and interchangeable barrel carry different serial numbers.27 The barrel side carries the and length.28 A Mobilchoke tube carries PB or ST and its degree of , and SP if it suits steel shot.29 Owners can enter the serial number in Beretta USA’s Get Firearm Info form.30, 31

WhereMarkings
Receiver and interchangeable barrelDifferent serial numbers27
Barrel sideGauge and chamber length28
Mobilchoke tubePB or ST and the choke degree; SP on a steel-compatible tube29

Beretta USA’s Get Firearm Info form accepts a serial number.30, 31 Contact the maker

Before you buy

  1. Ask a qualified person to demonstrate that the resets repeatedly; Outdoor Life reported reset trouble on some early Ultimas.32
  2. Try the during a supervised shooting demonstration; the Ultima’s Kick-Off system has two hydraulic dampeners.33
  3. Buy only Mobilchoke replacement tubes; Beretta’s choke families do not interchange.15, 34
  4. Check that the piston moves freely on the magazine tube; the manual warns against oiling inside the gas cylinder.35, 36
  5. Check that the is clean inside and outside.37

History

Beretta USA announced the A300 Ultima on 25 June 2021, in 12 and .13, 14 It came in Black Synthetic, Realtree MAX-5 and Mossy Oak Bottomland finishes.14 Beretta demonstrated the gun to the public at the Ducks Unlimited Expo in Fort Worth, Texas.38

By February 2023 a Turkey version had appeared, with a 24-inch barrel, an extended Full tube and an optics-ready receiver, in Mossy Oak DNA and RealTree Edge finishes.39, 40, 41 Beretta announced the Sporting on 14 April 2023.24 It has a 30-inch barrel in 12 bore or a 28-inch barrel in 20 bore, with a white front bead and a 7 mm stepped rib.10

DateChangeObservable feature
2023Beretta introduces the Sporting version24, 10, 25White front bead, stepped rib and green accents

Sources

  1. Beretta USA Launches New A300 Ultima Semi-Auto Shotgun, model. Beretta USA; release carried by The Shooting Wire, 2021-06-25. maker website · Archive
  2. Beretta USA Launches New A300 Ultima Semi-Auto Shotgun, use. Beretta USA; release carried by The Shooting Wire, 2021-06-25. maker website · Archive
  3. Beretta USA Launches New A300 Ultima Semi-Auto Shotgun, controls. Beretta USA; release carried by The Shooting Wire, 2021-06-25. maker website · Archive
  4. Beretta A300 shotgun user manual UQAN3953 rev 0, fore-end. Beretta USA. manual · Archive
  5. Beretta USA Launches New A300 Ultima Semi-Auto Shotgun, rib-and-sights. Beretta USA; release carried by The Shooting Wire, 2021-06-25. maker website · Archive
  6. Beretta USA Launches New A300 Ultima Semi-Auto Shotgun, standard-recoil-system. Beretta USA; release carried by The Shooting Wire, 2021-06-25. maker website · Archive
  7. Beretta A300 shotgun user manual UQAN3953 rev 0, bolt. Beretta USA. manual · Archive
  8. Beretta A300 shotgun user manual UQAN3953 rev 0, choke-system. Beretta USA. manual · Archive
  9. Beretta Launches New A300 Ultima Sporting Shotgun, features. Beretta USA; release carried by The Shooting Wire, 2023-04-14. maker website · Archive
  10. Beretta Launches New A300 Ultima Sporting Shotgun, barrels-rib-sights. Beretta USA; release carried by The Shooting Wire, 2023-04-14. maker website · Archive
  11. Beretta Launches New A300 Ultima Sporting Shotgun, colours. Beretta USA; release carried by The Shooting Wire, 2023-04-14. maker website · Archive
  12. Beretta semiautomatic user manual UQAN3953 rev 1 — Ultima, technical-table. Beretta USA. manual · Archive
  13. Beretta USA Launches New A300 Ultima Semi-Auto Shotgun, date. Beretta USA; release carried by The Shooting Wire, 2021-06-25. maker website · Archive
  14. Beretta USA Launches New A300 Ultima Semi-Auto Shotgun, gauges-and-finishes. Beretta USA; release carried by The Shooting Wire, 2021-06-25. maker website · Archive
  15. Beretta USA Launches New A300 Ultima Semi-Auto Shotgun, chokes. Beretta USA; release carried by The Shooting Wire, 2021-06-25. maker website · Archive
  16. Beretta USA Launches New A300 Ultima Semi-Auto Shotgun, use; standard-recoil-system. Beretta USA; release carried by The Shooting Wire, 2021-06-25. maker website · Archive
  17. Beretta A300 shotgun user manual UQAN3953 rev 0, stock. Beretta USA. manual · Archive
  18. Beretta A300 shotgun user manual UQAN3953 rev 0, guard. Beretta USA. manual · Archive
  19. Beretta A400 Xtreme Plus Shotgun Review, bolt. Shooting Times, 2019-02-01. magazine · Archive
  20. Beretta New Zealand catalogue 2025 — Ultima, SL3 and V, edition. Beretta New Zealand, 2025. maker catalogue · Archive
  21. Beretta New Zealand catalogue 2025 — Ultima, SL3 and V, ultima-field-table. Beretta New Zealand, 2025. maker catalogue · Archive
  22. Shotgun Review: The A300 Ultima Is Beretta’s Latest Attempt to Build a More Affordable Auto-Loader, specification. Outdoor Life, 2022-02-10. magazine · Archive
  23. Shotgun Review: The A300 Ultima Is Beretta’s Latest Attempt to Build a More Affordable Auto-Loader, report-date. Outdoor Life, 2022-02-10. magazine · Archive
  24. Beretta Launches New A300 Ultima Sporting Shotgun, date-and-launch. Beretta USA; release carried by The Shooting Wire, 2023-04-14. maker website · Archive
  25. Beretta Launches New A300 Ultima Sporting Shotgun, finish. Beretta USA; release carried by The Shooting Wire, 2023-04-14. maker website · Archive
  26. Beretta USA Launches New A300 Ultima Semi-Auto Shotgun, origin. Beretta USA; release carried by The Shooting Wire, 2021-06-25. maker website · Archive
  27. Beretta A300 shotgun user manual UQAN3953 rev 0, receiver-and-barrel-serials. Beretta USA. manual · Archive
  28. Beretta semiautomatic user manual UQAN3953 rev 1 — Ultima, gauge-and-chamber-marks. Beretta USA. manual · Archive
  29. Beretta choke-tube guide — marks and compatibility, mobil-tube-mark. Beretta. maker website · Archive
  30. Beretta USA Get Firearm Info — serial-number form, service. Beretta USA. maker website · Archive
  31. Beretta USA Get Firearm Info — serial-number form, input. Beretta USA. maker website · Archive
  32. Shotgun Review: The A300 Ultima Is Beretta’s Latest Attempt to Build a More Affordable Auto-Loader, early-trigger-report. Outdoor Life, 2022-02-10. magazine · Archive
  33. Shotgun Review: The A300 Ultima Is Beretta’s Latest Attempt to Build a More Affordable Auto-Loader, kickoff-comparison. Outdoor Life, 2022-02-10. magazine · Archive
  34. Beretta choke-tube guide — marks and compatibility, families-cannot-interchange. Beretta. maker website · Archive
  35. Beretta A300 shotgun user manual UQAN3953 rev 0, piston-check. Beretta USA. manual · Archive
  36. Beretta A300 shotgun user manual UQAN3953 rev 0, oil-caution. Beretta USA. manual · Archive
  37. Beretta A300 shotgun user manual UQAN3953 rev 0, choke-inspection. Beretta USA. manual · Archive
  38. Beretta USA Launches New A300 Ultima Semi-Auto Shotgun, launch-event. Beretta USA; release carried by The Shooting Wire, 2021-06-25. maker website · Archive
  39. Beretta Launches A300 Ultima Turkey Shotgun, report-date. American Hunter, 2023-02-03. magazine · Archive
  40. Beretta Launches A300 Ultima Turkey Shotgun, specification. American Hunter, 2023-02-03. magazine · Archive
  41. Beretta Launches A300 Ultima Turkey Shotgun, finishes. American Hunter, 2023-02-03. magazine · Archive

Revised