20 Bore/gauge Pistols & Handguns for Sale

6 results

Browse 20 Bore/gauge pistols and handguns for sale from private sellers, dealers and registered firearms dealers across the UK. Gunstar lists handgun classifieds updated daily.

3 photos
QUALITY**RARE**1801-1805 Irish Thomas Fowler Dublin 22 Bore Flintlock Overcoat / Traveling Pistol With Gold Inlays. Sn 21517 20 Bore/gauge Muzzleloader
**QUALITY**RARE**1801-1805 Irish Thomas Fowler Dublin 22 Bore Flintlock Overcoat / Traveling Pistol With Gold Inlays. Sn 21517 - 21517 Thomas Fowler was an Irish Dublin based Gunmaker recorded as ...
Subcategory Muzzleloader
Range -
Model Flintlock Overcoat / Traveling Pistol With Gold Inlays. Sn 21517
Calibre 20 Bore/gauge
Mechanism Flintlock
Sale type Trade
Stockport
£ 1,495
Promoted
3 photos
C1830 Irish Parkinson Dublin 22 Bore Percussion Traveling Pistol With C1843 Irish Registration Mark DU-1835 (Dublin), Fish Tail Stock, Octagonal Barrel & Captive Steel Ram Rod. Sn 22740 20 Bore/gauge Muzzleloader
C1830 Irish Parkinson Dublin 22 Bore Percussion Traveling Pistol With C1843 Irish Registration Mark DU-1835 (Dublin), Fish Tail Stock, Octagonal Barrel & Captive Steel Ram Rod. Sn 22740 - 22740 This ...
Subcategory Muzzleloader
Range -
Model Octagonal Barrel & Captive Steel Ram Rod. Sn 22740
Calibre 20 Bore/gauge
Mechanism Percussion
Sale type Trade
Stockport
£ 695
Promoted
3 photos
M. & J. Pattison With Fish Tail Stock Octagonal Damascus Steel Barrel & Captive Steel Ram Rod. Sn 21681:12 20 Bore/gauge Muzzleloader
C1820 M & J Pattison Dublin Ireland 28 Bore Percussion Traveling Pistol With Fish Tail Stock Octagonal Damascus Steel Barrel & Captive Steel Ram Rod. Sn 21681: 12 21681: 12 This is a nice M & J ...
Subcategory Muzzleloader
Range -
Model With Fish Tail Stock Octagonal Damascus Steel Barrel & Captive Steel Ram Rod. Sn 21681:12
Calibre 20 Bore/gauge
Mechanism Percussion
Sale type Trade
Stockport
£ 495
Promoted
3 photos
R. Horton With Folding Trigger & Turn Off Barrel. Sn 16380 20 Bore/gauge Muzzleloader
**MAN STOPPER**Early 1800’s English R. Horton London 22 Bore Flintlock Traveling Pistol With Folding Trigger & Turn Off Barrel. Sn 16380 - 16380 This an excellent large calibre flintlock pocket pi...
Subcategory Muzzleloader
Range -
Model With Folding Trigger & Turn Off Barrel. Sn 16380
Calibre 20 Bore/gauge
Mechanism Flintlock
Sale type Trade
Stockport
£ 645
Promoted
3 photos
SUPERB**MINT BORES**Cased C1820’s Matching Pair Of English John Probin London Maker To The Prince Of Wales 22 Bore Gentleman’s Flintlock Dueling / Target Pistols, With Octagonal Damascus Steel Barrels. Sn 22059:7 20 Bore/gauge Muzzleloader
*SUPERB**MINT BORES**Cased C1820’s Matching Pair Of English John Probin London Maker To The Prince Of Wales 22 Bore Gentleman’s Flintlock Dueling / Target Pistols, With Octagonal Damascus Steel Barr...
Subcategory Muzzleloader
Range -
Model With Octagonal Damascus Steel Barrels. Sn 22059:7
Calibre 20 Bore/gauge
Mechanism Flintlock
Sale type Trade
Stockport
£ 7,450
Promoted
3 photos
1834-1853 English Perrins (Worcester Or Berkshire) 28 Bore Percussion Overcoat / Traveling Pistol With Octagonal Barrel. Sn 21532:3 20 Bore/gauge Muzzleloader
1834-1853 English Perrins (Worcester Or Berkshire) 28 Bore Percussion Overcoat / Traveling Pistol With Octagonal Barrel. Sn 21532: 3 - 21532: 3 This is an English Percussion Overcoat / Traveling ...
Subcategory Muzzleloader
Range -
Model Overcoat / Traveling Pistol With Octagonal Barrel. Sn 21532:3
Calibre 20 Bore/gauge
Mechanism Percussion
Sale type Trade
Stockport
£ 475

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Pistol & Handguns·20 Bore/gauge

Buying 20 Bore/gauge Pistols and Handguns

 

Licensing

The licence required depends on the type of handgun. Most modern cartridge pistols and revolvers in the UK must meet the long-barrel or long-barrel revolver specifications to be held on a standard Firearms Certificate (FAC). Muzzle-loading pistols are Section 1 firearms and also require an FAC. Antique pistols in obsolete calibres may qualify as Section 58 curios and can be held without a licence, though always confirm the status of a specific listing with the seller. Deactivated firearms require a deactivation certificate but no firearms licence.

 

If you are unsure which category a listing falls into, ask the seller directly before making any offer.

 

What to check

Confirm that the seller holds the appropriate documentation for the firearm and that it matches any listing description. For Section 1 firearms, verify the seller's FAC details and ensure the transfer will be completed correctly. For antique or deactivated pieces, ask to see the relevant certificate or proof of antique status before purchasing. Inspect the action, barrel and overall condition, and request any available history or provenance for collector pieces.

 

Safe storage

An FAC specifies storage requirements. If you are acquiring a Section 1 pistol, ensure your gun safe meets police guidelines before completing the purchase.

 

Selling Your Pistol?

Include the type, calibre, action, overall length and licensing status in your listing. Confirm whether the item is Section 1, antique, deactivated, or dealer-only stock. Clear photographs and full documentation details help buyers assess compliance and condition quickly.

 

Browse all pistols and handguns for sale on Gunstar.