Beretta
686 Onyx
A field over-and-under with a black receiver and a gold Beretta signature
686 OnyxOnyx · US
Overview
The 686 Onyx is a field over-and-under for hunters, with polished black barrels and receiver.1 A gold P. Beretta signature sits on the receiver.1 Standard field guns have a schnabel fore-end and diamond-cut chequering.1
The US Onyx has a low-profile boxlock with a single, selective trigger.2 In 2003 Beretta offered it in 12, 20 and 28 bore, with Mobilchoke tubes.1, 3 The Onyx Pro added extended hunting chokes, X-Tra Wood and a fluted beavertail fore-end.4
Specifications
| Configuration | Bore | Chambers | Barrels, in | Rib, mm | Fore-end | Grade | Choke system | Years | Markets | Stock | Finish |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Game | |||||||||||
| Game5 | 12-bore | 76 mm (3 in) | 26, 28 | 6.35 | Schnabel | Onyx | Mobilchoke; removable; 5 tubes | 2003 | US | Schnabel fore-end | Polished black action; Gold P. Beretta signature engraving |
| Game5 | 20-bore | 76 mm (3 in) | 26, 28 | 6.35 | Schnabel | Onyx | Mobilchoke; removable; 5 tubes | 2003 | US | Schnabel fore-end | Polished black action; Gold P. Beretta signature engraving |
| Game5 | 28-bore | 70 mm (2¾ in) | 26, 28 | 6.35 | Schnabel | Onyx | Mobilchoke; removable; 5 tubes | 2003 | US | Schnabel fore-end | Polished black action; Gold P. Beretta signature engraving |
| Game5 | 12-bore | 76 mm (3 in) | 26, 28 | 6.35 | Schnabel | White Onyx | Mobilchoke; removable; 5 tubes | 2003 | US | Schnabel fore-end | Satin nickel alloy action; Dura-Jewel pattern engraving |
| Game5 | 20-bore | 76 mm (3 in) | 26, 28 | 6.35 | Schnabel | White Onyx | Mobilchoke; removable; 5 tubes | 2003 | US | Schnabel fore-end | Satin nickel alloy action; Dura-Jewel pattern engraving |
| Game5 | 28-bore | 70 mm (2¾ in) | 26, 28 | 6.35 | Schnabel | White Onyx | Mobilchoke; removable; 5 tubes | 2003 | US | Schnabel fore-end | Satin nickel alloy action; Dura-Jewel pattern engraving |
| Game6 | 12-bore | 76 mm (3 in) | 26, 28 | 6.35 | Fluted beavertail | Onyx Pro | Mobilchoke; removable; 5 tubes | 2003 | US | Fluted beavertail fore-end | Dura-Jewel pattern engraving |
| Game6 | 20-bore | 76 mm (3 in) | 26, 28 | 6.35 | Fluted beavertail | Onyx Pro | Mobilchoke; removable; 5 tubes | 2003 | US | Fluted beavertail fore-end | Dura-Jewel pattern engraving |
| Game6 | 28-bore | 70 mm (2¾ in) | 26, 28 | 6.35 | Fluted beavertail | Onyx Pro | Mobilchoke; removable; 5 tubes | 2003 | US | Fluted beavertail fore-end | Dura-Jewel pattern engraving |
| Game6 | 12-bore | 89 mm (3½ in) | 26, 28 | 6.35 | Flared beavertail | Onyx Pro 3.5 | Mobilchoke; removable; 5 tubes | 2003 | US | Flared beavertail fore-end | Matt black action |
| Wildfowl | |||||||||||
| Wildfowl5 | 12-bore | 89 mm (3½ in) | 28 | 6.35 | Beavertail with finger wells | Onyx Waterfowler 3.5 | Mobilchoke; removable; 5 tubes | 2003 | US | Beavertail with finger wells fore-end | Semi-matt black action |
Scroll for more columns.
Identify and date
On one restyled gun, the Beretta name and logo are inlaid in gold under the action and on its side panels.7 Scroll engraving covers the same gun’s trunnions and trigger-plate screw.7 The gauge and chamber length are marked on the barrel side.8
The Italian date stamp records the year of proof.9 Beretta places it most often on the receiver or frame and on the barrel.10 From 1 June 2020, the proof house has stamped the year as its last two digits inside a rectangle.11, 12
| Where | Markings |
|---|---|
| Under the action and on its side panels | Gold-inlaid Beretta name and logo on a restyled gun7 |
| Mobilchoke tube | PB or ST, with constriction; SP on steel-compatible tubes13 |
| Barrel side | Gauge and chamber length8 |
| Receiver or frame and barrel | Proof-year stamp14 |
Proof date
The stamp gives the year of proof. CZ applies up to 31 May 2020, and 20 from 1 June 2020. The later stamp encloses the year’s last two digits in a rectangle.9, 15, 12
Before you buy
- Have a gunsmith assess a loose action; oversize U-bolts and trunnions allow the Onyx to be tightened.16
- Inspect the finish on an Onyx Pro; Gun Tests questioned its durability on the gun it tested.17
- Identify the choke family before ordering tubes, because Beretta’s systems do not interchange.18
- Read the chamber mark on the fitted barrels before choosing cartridges.8
- Check that a Waterfowler has a semi-matt black receiver, a beavertail fore-end with finger wells and a silver trigger.2
- Check that all five tubes are present, and that an Onyx Pro comes with its extended hunting tubes.4

History
The original Onyx appeared in the late 1980s.19 In 2003 the US catalogue added the White Onyx and the Onyx Pro, and listed a 28-bore standard Onyx as new.20, 1
The restyled Onyx had appeared by December 2007.21, 22 Its black metalwork was confined to the barrels and action frame, and it gained decorative engraving.22 In Beretta’s range the Onyx sat between the Essential and the Silver Pigeon.23
Sources
- Beretta USA catalogue 2003 — Onyx, Diamond Pigeon, Gold E and AL391, onyx-offers-and-finish. Beretta USA, 2003. maker catalogue · Archive
- Beretta USA catalogue 2003 — Onyx, Diamond Pigeon, Gold E and AL391, onyx-specifications. Beretta USA, 2003. maker catalogue · Archive
- Beretta USA catalogue 2003 — Onyx, Diamond Pigeon, Gold E and AL391, choke-code-chart. Beretta USA, 2003. maker catalogue · Archive
- Beretta USA catalogue 2003 — Onyx, Diamond Pigeon, Gold E and AL391, onyx-pro-offers. Beretta USA, 2003. maker catalogue · Archive
- Beretta USA catalogue 2003 — Onyx, Diamond Pigeon, Gold E and AL391, onyx-offers-and-finish; onyx-specifications; choke-code-chart. Beretta USA, 2003. maker catalogue · Archive
- Beretta USA catalogue 2003 — Onyx, Diamond Pigeon, Gold E and AL391, onyx-pro-offers; onyx-pro-specifications. Beretta USA, 2003. maker catalogue · Archive
- Beretta 686 Onyx — Jason Harris review, marks. ShootingUK, 2016-04-20. magazine · Archive
- Beretta over-and-under and side-by-side manual — barrel marks, gauge-and-chamber-location. Beretta; scan hosted by BerettaWeb. manual · Archive
- Beretta USA catalogue 2004: National Proof House Year Stamp Markings, proof-year. Beretta USA; PDF hosted by BerettaWeb, 2004. maker catalogue · Archive
- Beretta USA catalogue 2004: National Proof House Year Stamp Markings, position. Beretta USA; PDF hosted by BerettaWeb, 2004. maker catalogue · Archive
- Cambio marchio anno di prova, change-date. Banco Nazionale di Prova, 2020. proof house · Archive
- Cambio marchio anno di prova, numeric-stamp. Banco Nazionale di Prova, 2020. proof house · Archive
- Beretta choke-tube guide — marks and compatibility, mobil-tube-mark. Beretta. maker website · Archive
- Beretta USA catalogue 2004: National Proof House Year Stamp Markings, proof-year; position. Beretta USA; PDF hosted by BerettaWeb, 2004. maker catalogue · Archive
- Conarmi: Italian proof marks and year codes, code-table. Consorzio Armaioli Italiani. magazine · Archive
- Beretta 686 Onyx — Jason Harris review, wear-parts. ShootingUK, 2016-04-20. magazine · Archive
- 12-Gauge Over/Unders: Silma, Browning, Beretta Go At It, finish-concern. Gun Tests, 2004-08-17. magazine · Archive
- Beretta choke-tube guide — marks and compatibility, families-cannot-interchange. Beretta. maker website · Archive
- Beretta 686 Onyx — Jason Harris review, original-introduction. ShootingUK, 2016-04-20. magazine · Archive
- Beretta USA catalogue 2003 — Onyx, Diamond Pigeon, Gold E and AL391, edition. Beretta USA, 2003. maker catalogue · Archive
- Beretta 686 Onyx — Jason Harris review, test-period. ShootingUK, 2016-04-20. magazine · Archive
- Beretta 686 Onyx — Jason Harris review, restyled-black-finish. ShootingUK, 2016-04-20. magazine · Archive
- Beretta 686 Onyx — Jason Harris review, related-grades. ShootingUK, 2016-04-20. magazine · Archive
- Beretta USA catalogue 2003 — Onyx, Diamond Pigeon, Gold E and AL391, edition; onyx-pro-offers; onyx-offers-and-finish. Beretta USA, 2003. maker catalogue · Archive
- Beretta USA catalogue 2003 — Onyx, Diamond Pigeon, Gold E and AL391, edition; onyx-offers-and-finish. Beretta USA, 2003. maker catalogue · Archive