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A visually stunning Boss & Co.. 20ga built with 26" chopper lump barrels. Splinter forend is nicely checkered and engraved. Full sidelock case hardened receiver is fabulously engraved in beau
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$54,950.00
Payments:
Wire, cash, cashier's check, business check, personal check....more
Shipping: $55.00
Payments:
Wire, cash, cashier's check, business check, personal check.
Credit card with 3 ...more
Boss & Co. 12 ga., 28" chopper lump barrels feature a raised game rib. Choked improved cylinder in both barrels (.007/.007). Chambers 2-3/4", proofed 1-1/8 oz.
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Boss & Co. 12 ga., scarce heavy proof pre-war side by side. 30" chopper lump barrels feature a WIDE concave rib 2-3/4" chambers choked improved and modified (.008/.020
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Few names in the world of fine sporting arms command the reverence of Boss & Co., a maker whose legacy has defined the pinnacle of British gunmaking since its founding by Thomas Boss in 1812. The
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$99,999.99
Payments:
VISA, MASTERCARD, DISCOVER, AMERICAN EXPRESS, CASH. CHECK. C...more
GORGEOUS BOSS & CO 12GA TRUE PAIR BUILT IN 1931 FOR R.C. DEWHURST -- GUNS WERE CAREFULL AND PROPERLY REFINISHED IN ENGLAND AND REMAIN IN AS NEW CONDITION -- INCREDIBLE ST. LEDGERS COLORS AND PROPE
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$64,950.00
Payments:
certified funds, personal check, money orders
Payments:
certified funds, personal check, money orders
Offered is a superb Boss & Co. Best Sidelock Ejector, serial number 4833, originally built as the “1” gun in a numbered pair and representing the very best of early 20th century London
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$29,999.00
Payments:
Money Order or Cashiers Check, Visa, Mastercard and American...more
Payments:
Money Order or Cashiers Check, Visa, Mastercard and American Express
General Specs: Boss & Co, 1939, 12 Gauge, 7lbs. 4oz., Chokes M/F; SK;IC, LOP 14 1/2", DAH 2 3/8", DAC 1 1/2"
Serial Number: 8126
Boss & Co. is the oldest ma
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$29,975.00
Payments:
credit card, check, certified funds, wire transfer (Advertis...more
In high condition as sympathetically restored, this is a "best" gun of the period in the original maker's case with tools! It is very unusual to find a gun in this condition with period acco
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$5,750.00
Payments:
Mailed all types. CC orders/payments solely thru our online ...more
Payments:
Mailed all types. CC orders/payments solely thru our online store. Prices on sin ...more
Specifications
Maker: BOSS & CO
Model: BEST GRADE SIDELOCK #1 GUN
Gauge/Caliber:12 GA
Barrel Length: 29"
Chambers: 2 1/2"/1 1/8oz N.P.
Rib Design: CONCAVE SMOOTH
Weight: 6lbs. 10o
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BEAUTIFUL BOSS AND Co 12GA ASSISTED OPENING GAME GUN -- FACTORY SINGLE TRIGGER, EJECTOR, FULL SPLINTER FOREND, STRAIGHT HAND STOCK WITH A CORRECT REPLACED ORANGE SILVERS PAD THAT WAS PERFECTLY FIT --
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$25,750.00
Payments:
certified funds, personal check, money orders
Payments:
certified funds, personal check, money orders
SN# 34XX
MADE 1878
30" SOLID RIB DAMASCUS STEEL BARRELS CYL AND MOD CHOKE (.002 AND .015 CONSTRICTIONS) 2 3/4" CHAMBERS
NP IN 1987
PROOFED AT .740"
LT BORE ~.745"
RT
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$4,950.00
Payments:
We accept all payment types on FIREARM SALES; personal check...more
Payments:
We accept all payment types on FIREARM SALES; personal check, cashiers check, mo ...more
Boss cased 12 bore with Boss Patented single trigger. Execllent condition. Gun has excellent shooting dimensions. MFG: 1921 - A product of the goldend years of British Gunmaking. Jus
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$17,500.00
SALE PENDING
Payments:
Postal Money Order, Bank Checks, Personal Checks take 5 days...more
Payments:
Postal Money Order, Bank Checks, Personal Checks take 5 days to clear,
Visa, M ...more
Boxlocks - At five pounds even this would make a great gun to carry all day or for a young person to learn on.
The choke can be arranged to be opened unless one wants to blow the head off a Turkey!
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Hammerless Sidelocks - This is a stunning Boss with 2007 2 3/4" nitro proofs.
The stock is quite straight but with the extra cast makes it feel when cheeked like a gun with 2 1/8" drop at h
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*** REDUCED *** CONDITION * CONDITION * CONDITION – Very handsome and great handling Boss12 bore back action hammergun with rebounding hammers an
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$19,995.00
Payments:
Cashiers Check, U.S. Postal Money Order, Personal Check
Payments:
Cashiers Check, U.S. Postal Money Order, Personal Check
A Pre-Owned Boss & Co 12 Gauge Pair Best Quality side by sides
Action
Calibre: 12 gauge
Action: Sidelock Ejector
Triggers: Single
Safety: Automatic
Barrels
Barrel Length: 29 inche
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Boss & Co. 12 gauge pair, 28" barrels feature game ribs bearing the "Boss & Co. 13 dover Street London " address. #1 choked (.007/.018) improved cylinder/modified.
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A preowned, true pair of cased Boss & Co side by side 12 bore ejector guns with 28” with plain game rib barrels. Both guns are choked improved cylinder and improved modified and the spare se
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Boss & Co 12 bore hammergun
29 3/4" fine Damascus non ejector game rib barrels with single front bead
2 1/2" black powder proof
Chokes: .005/.012 CYL/IC
Bore measurements: .736
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I have for sale a beautiful gun from my favorite English maker, Boss. This gun, serial number 4768, was originally built in 1900. However, this Boss comes with newer barrels which were replaced in 200
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Beautiful Boss & Co over/under shotgun with case hardened reciever, standard Boss rose and scroll engraving as well as extended forend metal. Near match for BOS9028. Manufactured in: England Hand:
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$80,000.00
Payments:
Visa, MC, AMEX, Check, Cashiers and Money Order. A surcharge...more
Payments:
Visa, MC, AMEX, Check, Cashiers and Money Order. A surcharge of 2.8% will be app ...more
Boss And Co - 73 St James S. Street - London
Caliber : 10 / 65 mm
Serial number : 3096 for 1873
Weight : 3,6 kg
Boss sidelock hammer Action - Self Opening with underlever - Non-ejector.
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Beautiful Boss&Co. self opening shotgun, whole action has shallow engraving, action retains much of its color case hardening. Manufactured in: England Hand: Right Hand Action Finish: Case Colored
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$38,000.00
Payments:
Visa, MC, AMEX, Check, Cashiers and Money Order. A surcharge...more
Payments:
Visa, MC, AMEX, Check, Cashiers and Money Order. A surcharge of 2.8% will be app ...more
Beautiful O/U SLE with case hardened reciever, Boss forend metal and standard rose and scroll engraving. Manufactured in: England Hand: Right Hand Action Finish: Case Colored Action Description: Over
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$85,000.00
Payments:
Visa, MC, AMEX, Check, Cashiers and Money Order. A surcharge...more
Payments:
Visa, MC, AMEX, Check, Cashiers and Money Order. A surcharge of 2.8% will be app ...more
Boss & Co., London – 12-Bore Side-by-Side Shotgun Set
Completed 1904 | Re-barreled by Boss, 1976
(SN 4567/8 and then rebarralled SN 9709/10)
Fine Boss & Co. London 12-bore s
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This gun is in the UK and will be shipped to the US gunroom during 2026 after full refurbishment. Full videos of refurbished guns are added to our site, just search for us on google.
A 12-BORE ASSI
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This gun is in the UK and being shipped to the US gunroom during 2026, further photos and video will be added once full refurbishment is complete
A 12-BORE EASY-OPENING SINGLE-TRIGGER SIDELOCK EJEC
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This beautiful gun is in the UK and being shipped to the US gunoom during 2026
A RARE 12-BORE SQUARE-BODY SELF-OPENING SIDELOCK EJECTOR, serial no. 8607,
circa 1939, 28in. nitro chopperlump barrel
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"SN: 1080 & 1081. Made in London pre-1898. Matched pair of Boss & Co. 12 gauge side by side under lever hammer shotguns. 29 ¼" Damascus barrels with 2 ½" chambers an
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$14,500.00
Payments:
M/C, VISA, American Express and Discover
Payments:
M/C, VISA, American Express and Discover
"SN: 4944, beautiful London best gun built in 1907, one out of a set of at least 3. 12 gauge side by side with 30" Nitro Proof barrels with 2 5/8" chambers and fixed chokes measuring .0
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$27,500.00
Payments:
M/C, VISA, American Express and Discover
Payments:
M/C, VISA, American Express and Discover
Tight and in very nice condition. Has some very minor handling marks. 1993 Factory Letter, ordered by Abercrombie & Fitch 11th August 1965, invoiced by Boss & Co on 15th March 1967. Manufactur
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$43,312.50
Payments:
Visa, MC, AMEX, Check, Cashiers and Money Order. A surcharge...more
Payments:
Visa, MC, AMEX, Check, Cashiers and Money Order. A surcharge of 2.8% will be app ...more
CREATIVE ARTS FAUSTI ENGRAVED 29" SOLID RIB 012 AND 017 2 3/4 SINGLE TRIGGER EJECTORS FIELD FOREARM ENGLISH GRIP CHECKERED BUTT WITH ENGRAVED HEEL AND TOE PLATES INCREDIBLE ENGRAVING AND WOOD NEW
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$39,500.00
Payments:
We accept all payment types on FIREARM SALES; personal check...more
Payments:
We accept all payment types on FIREARM SALES; personal check, cashiers check, mo ...more
28" BARRELS, 2-3/4", SINGLE TRIGGERS, STRAIGHT HAND GRIPS, SPLINTER FORE-ENDS, LEATHER COVERED RECOIL PADS, 1-1/2" DAC, 2-1/4" DAH, 14-3/4" LOP
Original owner is famed Engl
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$72,900.00
Payments:
Prices, Specifications and Availability Subject To Change Wi...more
Payments:
Prices, Specifications and Availability Subject To Change Without Notice. We acc ...more
27"BARRELS 017 AND 031 2 3/4 SINGLE TRIGGER EJECTORS SPLINTER FOREARM ENGLISH GRIP NEAR NEW ORIGINAL CONDITION IN MAKERS CASE 6LBS 10 OZ X 2 1/8 X 1 3/8 X 14 1/2
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$46,500.00
Payments:
We accept all payment types on FIREARM SALES; personal check...more
Payments:
We accept all payment types on FIREARM SALES; personal check, cashiers check, mo ...more
29" BARRELS IC/IC (.012"/.012") CHOKED - DOUBLE TRIGGERS - AUTOMATIC EJECTORS - SPLINTER FOREND - FULL COVERAGE BOSS MINIATURE ROSETTE BOUQUET & SCROLL E
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$22,500.00
Payments:
We accept all payment types on FIREARM SALES; personal check...more
Payments:
We accept all payment types on FIREARM SALES; personal check, cashiers check, mo ...more
#721X 29" 006 AND 010 2 3/4 DOUBLE TRIGGER EJECTORS SPLINTER FOREARM ENGLISH GRIP EXCELLENT CONDITION 6LBS 12 OZ X 2 X 1 1/2 X 14 3/4
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$29,500.00
Payments:
We accept all payment types on FIREARM SALES; personal check...more
Payments:
We accept all payment types on FIREARM SALES; personal check, cashiers check, mo ...more
#9428 27" 008 AND 016 2 3/4 28" 27 AND 35 2 3/4 SINGLE TRIGGER EJECTORS BEAVER TAIL FOREARM ENGLISH GRIP CHECKERED BUTT EXCELLENT CONDITION IN MAKERS CASE 7LBS 1 OZ X 2 1/4 X 1 3/8 X 14 3/4
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$42,500.00
Payments:
We accept all payment types on FIREARM SALES; personal check...more
Payments:
We accept all payment types on FIREARM SALES; personal check, cashiers check, mo ...more
#6225 & 6226, Boss & Co. 13 Dover Street. Piccadilly. London. W.: A True 12 Bore Pair of Boss Bar Action Ejector Sidelock Game Guns Finished in 1913, Both guns with very attractive Sumner engr
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#4019 & #3993, Boss & Co., 13 Dover Street. Piccadilly. London. W. : A Composite Pair of Boss Back Action Side Lever or Side Snap Hammerless Ejector Game Guns, Up to 1890 Boss only built 283 S
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SOLD - #7904, Boss & Co., 41 Albemarle Street. Piccadilly. London. W.: A 1931 - 12 Bore Sidelock Ejector That Remains Totally Original and Correct Plus it Remains in Superb Condition. This Outstan
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