Buy and Sell your guns online at GunsInternational.com
Sorry! You're too late.
The Boss & Co. Sidelock from 1899 ~ two barrel set at an exceptional price GI# 101157737 has been sold.
Click here to see what else is available by Vintage Doubles.

View other listings in this category....

Order By
Featured Gun Classifieds Boss Shotguns
Boss & Co. 20 ga., best side by side, 26" barrels with file cut flat tapered rib, original 2-3/4" chambers choked tight improved cylinder and modified .010/.016, bores measure a perfect ...Click for more info
Seller: Osprey
Area Code: 516
$55,000
GI#: 101190067
Boss & Co. 12 ga.ejector game gun. 29 inch chopper lump barrels with 2-1/2 inch chambers .Choked improved cylinder and modified the bores measure .732 right .733 left. The tapered semi-concave gam ...Click for more info
Seller: Osprey
Area Code: 516
$29,500
#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 ...Click for more info
Seller: Champlin
Area Code: 580
$39,000.00
Boss Shotguns
NEW THIS WEEK!
#913X 26" LOW PROFLE VENT RIB 003 AND 006 2 3/4 SINGLE TRIGGER EJECTOR BEAVERTAIL FOREARM PISTOL GRIP CHECKERED BUTT NEW POSSIBLY UNFIRED 6LBS X 1 1/2 X 1 1/2 X 14 3/8 ...Click for more info
Seller: Steve Barnett Fine Guns
Area Code: 662
$59,500.00
NEW THIS WEEK!
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 ...Click for more info
Seller: Steve Barnett Fine Guns
Area Code: 662
$46,500.00
Boss & Co. 12ga.  28” barrels choked M/F.  Straight grip, single trigger, checkered butt, factory vent rib.  It is completely English quality refinished, perfect screws, perfe ...Click for more info
Seller: Connecticut Shotgun
Area Code: 860
$65,000.00
#721X 29" 006 AND 010 2 3/4 DOUBLE TRIGGER EJECTORS SPLINTER FOREARM ENGLISH GRIP EXCELLENT CONDITION CASED 6LBS 12 OZ X 2 X 1 1/2 X 14 3/4 ...Click for more info
Seller: Steve Barnett Fine Guns
Area Code: 662
$29,500.00
Hammerless Sidelocks - Boss 20g. Sidelock in exceptional condition and investment grade original. Featuring 28�whitworth steel barrels, 75% case color, 98% blue, in its makers case. This petite fl ...Click for more info
Seller: Vintage Doubles
Area Code: 509
$67,000.00
29" BARRELS IC/IC (.012"/.012") CHOKED - DOUBLE TRIGGERS - AUTOMATIC EJECTORS - SPLINTER FOREND - FULL COVERAGE BOSS MINIATURE ROSETTE BOUQUET & SCROLL E ...Click for more info
Seller: Steve Barnett Fine Guns
Area Code: 662
$33,500.00
#9466 27" 008 AND 016 2 3/4 28" 27 AND 35 2 3/4 DOUBLE 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 ...Click for more info
Seller: Steve Barnett Fine Guns
Area Code: 662
$42,500.00
26 1/2" BARRELS 006 AND 010 2 3/4 SINGLE TRIGGER EJECTORS SPLINTER FOREARM ENGLISH GRIP MAKERS CASE EXCELLENT ORIGINAL CONDITION 5LBS 4 OZ X 2 1 1/4 x 1 1/2  X 14 LOP ...Click for more info
Seller: Steve Barnett Fine Guns
Area Code: 662
$55,000.00
#4850 28"003 AND 006 2 1/2" CHAMBERS SINGLE TRIGGER EJECTORS SPLINTER FOREARM ENGLISH GRIP CHECKERED BUTT MAKERS CASE EXCELLENT CONDITION 6LBS 8 OZ 2 1/4 DAH 1 3/8 DAC 14 7/8 LOP ...Click for more info
Seller: Steve Barnett Fine Guns
Area Code: 662
$23,500.00
Hammerless Sidelocks - This was a personal gun which I have loved but the simple fact is I don\'t shoot it much anymore as I am in love with my Boss 16 gauge. I don\'t like to see a gun idle in my p ...Click for more info
Seller: Vintage Doubles
Area Code: 509
$18,600.00
GI#: 101174498
Boss 20 Gauge 26 inch Length of Barrel 14 1/4 Length of Pull 1 3/8 Drop at Comb 2 1/8 Drop at Heel   ...Click for more info
Seller: Gunroom.us
Area Code: 800
$39,500.00
   ***   SOLD   ***   Don't miss out on the "Best value in a Boss"! This beautiful and rare Boss Round Body Action was made circa 1895-97 and shows the impact of Joh ...Click for more info
Seller: MacNab
Area Code: 704
$11,995
GI#: 101169760
EASY-OPENER WITH NEW 1981 BOSS 27" BARRELS WITH .005 AND .10 CHOKES, 2 3/4 CHAMBERS, DOUBLE TRIGGER EJECTORS, ROUND ACTION SPLINTER FOREARM ENGLISH GRIP VERY NICE CONDITION IN MAKERS CASE, DOM 19 ...Click for more info
Seller: Carolina Sporting Arms
Area Code: 704
$22,500.00
#65XX 27" 003 AND 009 SELF OPENER DOUBLE TRIGGER EJECTORS SPLINTER FOREARM ENGLISH GRIP EXCELLENT CONDITION IN MAKERS CASE 5LBS 15 OZ X 2 3/8 X 14 1/4 OVERALL INCLUDING 1/2" PAD AND 1/2 ...Click for more info
Seller: Steve Barnett Fine Guns
Area Code: 662
$36,500.00
Boss London Sidelock 12 Ga.30" steel barrels, choked .009/.011. Proofed 2 1/2". Opened to 2 3/4" but not re-proofed. Number 1 of a broken set. Nitro Proofed. Best Quality Game Gun. ...Click for more info
Seller: Bass Pro Shops Springfield
Area Code: 417
$29,999.99
Maker: Arrieta Model: Boss Gauge: 12 Barrels: 28" Chokes: IC - M L.O.P. : 14 1/4" Drop: 1 1/2" C x 2 1/4" H Weight: 6 lbs 12 oz Ser. #: 5703-33497 Stock #: 7816 Price: $14,500 New or Used: Used ...Click for more info
Seller: Robin Hollow Outfitters
Area Code: 401
$14,500
Maker: Boss & Co. Model: Best Gauge: 12 Barrels: 30" Chokes: Improved Mod - Full L.O.P. : 15" Drop: 1 1/2" C x 2 1/8" H Weight: 7 lbs 14 oz Ser. #: 7726 Stock #: 8597 Price: $ P.O.R. New or Used: Used ...Click for more info
Seller: Robin Hollow Outfitters
Area Code: 401
$ P.O.R
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 ...Click for more info
Seller: Steve Barnett Fine Guns
Area Code: 662
$39,500.00
CREATIVE ARTS ENGRAVED BY GIOVANELLI FANTASY ENGRAVED GIRLS AND EAGLES 28" SOLID RIB IMPROVED MODIFIED AND FULL 2 3/4 SINGLE TRIGGER EJECTORS BOSS STYLE FOREARM ENGLISH GRIP NEW UNFIRED IN CASE 6 ...Click for more info
Seller: Steve Barnett Fine Guns
Area Code: 662
$39,500.00
GI#: 101144584
A seldom encountered 12 bore Boss Try Gun. Side lever box lock, 29 inch barrels, choked mod and mod. Weight 6 lbs. 5 oz. 2 3/4 inch chambers. Made in 1891. ...Click for more info
Seller: Robert 114
Area Code: 617
$8950.00
Hammerguns - They don\'t call Boss guns the best for nothing. They really are the "Boss" of the London shotgun trade since Thomas Boss started building the best in 1812, the same year we declared our ...Click for more info
Seller: Vintage Doubles
Area Code: 509
$8,200.00
#914X 28" 015 AND 015 2 1/2" CHAMBERS BOSS SINGLE TRIGGER EJECTORS SPLINTER FOREARM ENGLISH GRIP EXCELLENT ORIGINAL CONDITION WITH LIGHT HANDLING MARKS 7LBS 2 OZ X 2 X 1 7/16 X 14 1/2 ...Click for more info
Seller: Steve Barnett Fine Guns
Area Code: 662
$33,500.00
Boss O/U 12 Bore 2 Barrel Set, Built in 1919 For a Canadian Client.   Barrels are 27 and 29 inch. First set delivered with gun is 27" Cyl & Cyl.  Second set completed in 1926 ...Click for more info
Seller: Schwandt Classic Arms
Area Code: 608
$59,900.00
Boss & Co. - Best - 20 ga -   Item Number: BOS8019  Shotgun type: SxS Action: Sidelock Ejectors: Yes Trigger: Single Grip: Straight Grip Forend:  ...Click for more info
Seller: Griffin & Howe
Area Code: 973
$48,500.00
GI#: 101122912
Boss & Co 12 Gauge 26 inch Length of Barrel 15 1/2 inch Length of Pull  1 3/8 Drop at Comb 2 3/8 Drop at Heel 2 3/4 Chamber 6lbs 14.6oz Over/Under Scroll engraving with Boss & Co ...Click for more info
Seller: Gunroom.us
Area Code: 800
$59900
Boss & Co. of London, exceptional hammer gun in 12 gauge. Offers? Old School upland wildfowling at its finest!  This is a rare opportunity to purchase a fully functional antique masterpi ...Click for more info
Seller: brandonhal
Area Code:
$7,900.00
Boss & Co. - Best SLE - 12 ga -  Item Number: BOS7573 Shotgun type: SxS Action: Sidelock Ejectors: Yes Trigger: Double Grip: Straight Grip Forend: Checkered Lop: 14 3/8 " Pad ...Click for more info
Seller: Griffin & Howe
Area Code: 973
$49,500.00
***WE BUY & CONSIGN FIREARMS*** Boss & Co. - Best - 12 ga -  Item Number: BOS9327   Shotgun type: Side-by-Side Action: Sidelock Ejectors: Yes Trigger: Single Grip: Strai ...Click for more info
Seller: Griffin & Howe
Area Code: 973
$49,500.00
A lever-over-guard 12 gauge bar action hammer gun made in 1901. According to serial number records this gun is within the last 5 hammer guns ever made by Boss.   It has 31” barrels wit ...Click for more info
Seller: Country Pursuits
Area Code: 718
$32,950
Boss & Co. - 'Best' SLE - 12 ga -   Item Number: BOS9001  Shotgun type: SxS Action: Sidelock Ejectors: Yes Trigger: Single Grip: Prince of Wales gr ...Click for more info
Seller: Griffin & Howe
Area Code: 973
$48,500.00
#5940, Boss & Co., 13 Dover Street. Piccadilly. London. W.: A Boss 12 Bore Sidelock Ejector Game Gun Made in 1911, 29" Chopper Lump barrels at .732 & .000 & .000" (Cyl. & Cyl ...Click for more info
Seller: Champlin
Area Code: 580
$29,000.00
Boss Best 20ga 26" Barrels Choked I/C Mod, 14 1/2 LOP, Roll Scroll Trigger Guard, 5.75lbs ...Click for more info
Seller: Kevins of Thomasville
Area Code: 229
$74,995
Boss & Co. - Best Over/Under, 2 Bbl Set - 12 ga -   Item Number: BOS8279  Shotgun type: O&U Action: Sidelock Ejectors: Yes Trigger: Single Grip:  ...Click for more info
Seller: Griffin & Howe
Area Code: 973
$80,000.00
Boss & Co., LTD. Best Quality 2 barrel Cased set. 12 Ga,  Side lock, fully engraved action. Double trigger, non-ejector. Original 26" & 28" barrels. Pull 14 1/4". 97% condi ...Click for more info
Seller: Aardvarkltd
Area Code: 978
$18,995.00
#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 ...Click for more info
Seller: Champlin
Area Code: 580
$29,800.00
Description: SN 5072. (ca 1903) Cal. 12 ga. 2-3/4" Chambers. 27" and 28" Chopper lump bbls made by Boss in the early '90's. 28" set utilizes orig narrow game rib with ...Click for more info
Seller: orionbuy
Area Code: 806
$22,000 PRICE REDUCED ******** $18,000
Description: SN 8163. Cal. 12 ga. 2-3/4" Chambers. Two sets of 25" chopper lump bbls engraved with Boss' Albemarle Street address on narrow top ribs. "Made in England" is ...Click for more info
Seller: orionbuy
Area Code: 806
$27,000 PRICE REDUCED ********** $23,000
Boss & Co. - Best - 12 ga - Item Number: BOS8942 Shotgun type: SxS Action: Sidelock Ejectors: Yes Trigger: Double Grip: Semi-Pistol Grip Forend: Splinter Lop: 14 3/4 " Pad thicknes ...Click for more info
Seller: Griffin & Howe
Area Code: 973
$65,000.00
Arrieta - Boss SLE Matched Pair - 20 ga - Regular Price $29,200.00,  Reduced to $26,350.00 Item Number: 570312904-13004   Shotgun type: SxS Action: Sidelock Ejectors: Yes Trigger: D ...Click for more info
Seller: Griffin & Howe
Area Code: 973
$26,350.00
Magnificent and Rare Boss Double Rifle. SN#: 3699 Cal:500 - 3" BPE. 27 1/2" steel barrels with one standing, one folding sight. Extractors. Bottom rib marked "Boss & Co. 73 St. Jame ...Click for more info
Seller: FOXTROT SPORTING - FRANCIS LOMBARDI
Area Code: 315
SOLD !!!
A very crisp best quality Boss shotgun.. .Barrels re sleeved by Boss and measure as new.Engraving,almost certainly by Jack Sumner.Nicely cased in leather with some top quality accessories..CLOSIN ...Click for more info
Seller: VCA
Area Code: 815
$19,000.00
Extraordinarily rare and unique Boss & Co. 28 bore rounded small frame sidelock ejector game gun. Serial number 100xx. 28” nitro proofed steel barrels with game rib and single front bead, ma ...Click for more info
Seller: FOXTROT SPORTING - FRANCIS LOMBARDI
Area Code: 315
SOLD !!!
Fantastic original pre-war Boss 20 bore game gun. Serial number 8xxx. 28” nitro-proof steel barrels with game rib. Original 2 ¾” chambers. Ejectors. Case-colored sidelock action w ...Click for more info
Seller: FOXTROT SPORTING - FRANCIS LOMBARDI
Area Code: 315
SOLD !!!
Boss & Co. Best S/S Matched Pair, 16ga. 28”barrels choked IC/M, straight grip stock, single selective trigger, splinter forend, solid rib, automatic ejectors, automatic safety, gold ovals, h ...Click for more info
Seller: Connecticut Shotgun
Area Code: 860
75000.00 or make offer
#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 Outstanding pi ...Click for more info
Seller: Champlin
Area Code: 580
$55,000.00
#2875, Boss & Co., 73 St. James's Street, London: A Very Rare and Very Unusual Boss .577 Snider Back Action Underlever Non-Rebounding Hammer Double Rifle that was Made in 1870 for W.J. Leigh, ...Click for more info
Seller: Champlin
Area Code: 580
$19,000.00

Guns International Advertising Policy
This site's purpose is to bring gun buyers and gun brokers or sellers together by advertising guns or gun related items and services for sale online. If you are looking to buy guns in America or Internationally, you have come to the right place. Guns International makes no representation or warranty as to the accuracy of the information contained in the gun classifieds, gun related or gun services classifieds listed on this site. Buyers and sellers are required to know and comply with all applicable local, state and federal firearm laws.
Site Secure SecurityMetrics for PCI Compliance, QSA, IDS, Penetration Testing, Forensics, and Vulnerability Assessment