20 Gauge Citadel Guns for Sale

Price History
20 Gauge
Citadel
Citadel Mariner 20GA Shotgun 18.5" Barrel Black Nickel
New
UPC 682146898989
$199.99 Good 4 Guns ★★★★★ (276)
CITADEL PAT SHOTGUN - The Citadel PAT shotgun has a three inch chamber, making this shotgun perfect for home defense. This model also features a padded butt stock, a top and bottom picatinny rail, and ghost ring sights. - CHAMBER 20 GA 3" - MAGAZINE CAPACITY 3+1 - SIGH...
New
UPC 682146859270 Shipping $20
$209.99 Guns.com ★★★★★ (38,455)

20 Gauge Citadel Guns Price Graph

Today's 20 Gauge Citadel Guns average is $431.11, 10% below the 180-day average of $481.10. Over the last 180 days, the average peaked at $597.81 on March 28, 2026 and bottomed at $323.99 on August 7, 2026.

Citadel Mariner 20GA Pump Action Shotgun
New
UPC 682146898972
$209.99 Good 4 Guns ★★★★★ (276)
LEGACY SPORTS INTERNATIONAL CITADEL MARINER 20/18 NKL/BLK
New
UPC 682146898989 Free Shipping > $500
$216.99 Cummings Family Firearms ★★★★★ (52)
CITADEL MARINER 20GA PUMP ADJ - SIGHT BLACK NICKEL
New
UPC 682146898989 CC Fee 6%
$223.42 All Things Firearm ★★★★★ (3)
LEGACY SPORTS INTERNATIONAL CITADEL MARINER 20/18 NKL/WD
New
UPC 682146898972 Free Shipping > $500
$227.99 Cummings Family Firearms ★★★★★ (52)
Citadel Mariner 20 Gauge Pump Shotgun, 18.5in Nickel/Black
New
UPC 682146898989
$229.29 Georgia Guns & Ammo ★★★★★ (2)
Citadel FRMN2020SYN Mariner Full Size 20 Gauge Pump 3" 4+1 18.50" Nickel Finished Heat Shield Barrel, Nickel Finished Aluminum Receiver w/Picatinny Rail, Black Fixed Synthetic Stock
New
UPC 682146898989 Free Shipping > $900 CC Fee 3% $10 Off Code CALIBERKING
$230.14 Armed in Michigan ★★★★★ (714)
CITADEL MARINER 20GA 3" 18.5" - 5RD ADJ SIGHT WOOD & NICKEL
New
UPC 682146898972 CC Fee 6%
$234.64 All Things Firearm ★★★★★ (3)
CITADEL MARINER 20GA PUMP ADJ - SIGHT BLACK NICKEL
New
UPC 682146898989 Shipping $19 Free Shipping > $750
$235.35 Riddle Firearms

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Citadel FRMN2020SYN Mariner Full Size 20 Gauge Pump 3" 4+1 18.50" Nickel Finished Heat Shield Barrel, Nickel Finished Aluminum Receiver w/Picatinny Rail, Black Fixed Synthetic Stock
New
UPC 682146898989
$236.00 CLB Guns ★★★★★ (45)
Citadel Mariner 20ga 18.5in Nickel/Wood Pump Shotgun
New
UPC 682146898972
$240.81 Georgia Guns & Ammo ★★★★★ (2)
LEGACY SPORTS INTERNATIONAL CITADEL MARINER 20/18 NKL/WD
New
UPC 682146898972 Free Shipping > $900 CC Fee 3% $10 Off Code CALIBERKING
$241.71 Armed in Michigan ★★★★★ (714)
Citadel FRMN2020SYN Mariner Full Size 20 Gauge Pump 3" 4+1 18.50" Nickel Finished Heat Shield Barrel, Nickel Finished Aluminum Receiver w/Picatinny Rail, Black Fixed Synthetic Stock
New
UPC 682146898989 Shipping $20
$243.29 DK Gun & Dog ★★★★★ (56)
CITADEL MARINER - The Citadel Mariner pump-action shotgun delivers reliable and durable performance in a 20 gauge platform. It features a nickel-finished 18.5-inch barrel with a full-length heat shield and a synthetic stock, making it suitable for various conditions and ap...
New
UPC 682146898989 Shipping $20
$245.99 Guns.com ★★★★★ (38,455)
CITADEL MARINER 20GA 18.5" SHOTGUN PUMP ACTION, SYNTHETIC/NICKEL
New
UPC 682146898989
$245.99 Palmetto State Armory ★★★★★ (1,164)
CITADEL MARINER 20GA 3" 18.5" - 5RD ADJ SIGHT WOOD & NICKEL
New
UPC 682146898972 Shipping $19 Free Shipping > $750
$247.17 Riddle Firearms
LEGACY SPORTS INTERNATIONAL CITADEL MARINER 20/18 NKL/BLK
New
UPC 682146898989
$247.81 Allied Arms ★★★★★ (310)
Citadel FRMN2020NKL Mariner Full Size 20 Gauge Pump 3" 4+1 18.50" Nickel Finished Heat Shield Barrel, Nickel Finished Aluminum Receiver w/Picatinny Rail, Black Fixed Walnut Stock
New
UPC 682146898972 Free Shipping > $500
$250.89 Shooting Surplus ★★★★★ (193)
LEGACY SPORTS INTERNATIONAL CITADEL MARINER 20/18 NKL/BLK
New
UPC 682146898989 Free Shipping > $1,000 CC Fee 3%
$253.78 Bunker Hill Ballistics ★★★★★ (9)
Citadel FRMN2020NKL Mariner Full Size 20 Gauge Pump 3" 4+1 18.50" Nickel Finished Heat Shield Barrel, Nickel Finished Aluminum Receiver w/Picatinny Rail, Black Fixed Walnut Stock
New
UPC 682146898972 Shipping $20
$254.01 DK Gun & Dog ★★★★★ (56)
Citadel CITADEL MARINER 20GA 18.5IN BARREL BLACK NICKEL 4RD FRMN2020SYN
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UPC 682146898989 Shipping $15 Free Shipping > $500
$257.99 BuyAGun ★★★★★ (3)
CITADEL MARINER - The Citadel Mariner is a 20-gauge pump-action shotgun from Legacy Sports International, designed for reliability and versatility. It features a nickel finish and classic walnut stock, making it suitable for use in demanding environments. The shotgun inclu...
New
UPC 682146898972 Shipping $20
$257.99 Guns.com ★★★★★ (38,455)
CITADEL MARINER 20GA 18.5" PUMP ACTION SHOTGUN, NICKEL/WOOD
New
UPC 682146898972
$257.99 Palmetto State Armory ★★★★★ (1,164)
LEGACY SPORTS INTERNATIONAL CITADEL MARINER 20/18 NKL/BLK
New
UPC 682146898989
$259.47 Tungsten Creek Tactical
Citadel FRMN2020SYN Mariner Full Size 20 Gauge Pump 3" 4+1 18.50" Nickel Finished Heat Shield Barrel, Nickel Finished Aluminum Receiver w/Picatinny Rail, Black Fixed Synthetic Stock
New
UPC 682146898989 Shipping $15 Free Shipping > $500
$262.00 Garrison's Guns ★★★★★ (21)
Citadel Mariner 682146898989 20 Gauge
New
UPC 682146898989
$264.99 C-ME Firearms
LEGACY SPORTS INTERNATIONAL CITADEL MARINER 20/18 NKL/BLK
New
UPC 682146898989 Shipping $18
$266.91 Blackbox Ballistics ★★★★★ (2)
Citadel CITADEL MARINER 20GA 18.5IN BARREL WOOD NICKEL 4RD FRMN2020SYN
New
UPC 682146898972 Shipping $15 Free Shipping > $500
$269.99 BuyAGun ★★★★★ (3)
CITADEL MARINER 20GA PUMP ADJ - SIGHT BLACK NICKEL
New
UPC 682146898989
$270.99 Pathfinder Militaria ★★★★★ (106)
CITADEL MARINER 20GA 3" 18.5" - 5RD ADJ SIGHT WOOD & NICKEL
New
UPC 682146898972
$272.51 Tungsten Creek Tactical
Citadel Mariner 682146898972 20 Gauge
New
UPC 682146898972
$274.99 C-ME Firearms
Citadel FRMN2020NKL Mariner Full Size 20 Gauge Pump 3" 4+1 18.50" Nickel Finished Heat Shield Barrel, Nickel Finished Aluminum Receiver w/Picatinny Rail, Black Fixed Walnut Stock
New
UPC 682146898972 Shipping $15 Free Shipping > $500
$275.00 Garrison's Guns ★★★★★ (21)
CITADEL MARINER 20GA 3" 18.5" - 5RD ADJ SIGHT WOOD & NICKEL
New
UPC 682146898972
$282.72 Utah Fast ★★★★★ (101)
CITADEL MARINER 20GA 3" 18.5" - 5RD ADJ SIGHT WOOD & NICKEL
New
UPC 682146898972
$282.99 Pathfinder Militaria ★★★★★ (106)
Citadel Acrius 20 Gauge 26" Break Action Shotgun, Turkish Walnut - KAR2026Y
New
UPC 682146860061
$452.99 Palmetto State Armory ★★★★★ (1,164)
CITADEL BOSS SS COACH 20GA - SIDE BY SIDE 18.5" BLACK
New
UPC 682146891706 Free Shipping > $500
$476.99 Cummings Family Firearms ★★★★★ (52)
LEGACY SPORTS INTERNATIONAL CITADEL COACH 20/18.5 BL/WD
New
UPC 682146891706
$491.72 Ecommerce Arms
LSI CITADEL BOSS COACH SXS 20GA 18.5 NKL
New
UPC 682146891720 Free Shipping > $500
$499.99 Cummings Family Firearms ★★★★★ (52)
Legacy Sports Boss Side by Side 20 Gauge Shotgun
New
UPC 682146891720
$503.99 Good 4 Guns ★★★★★ (276)
LEGACY SPORTS INTERNATIONAL CITADEL COACH 20/18.5 BL/WD
New
UPC 682146891706 Free Shipping > $700
$504.39 Safe Haven Defense
Legacy Sports Citadel Coach 20/18.5 Shotgun - Black and Wood Finish 682146891706
New
UPC 682146891706 $5 Off - Use Code CALIBERKING
$508.63 Gun Place ★★★★★ (206)
CITADEL BOSS SS COACH 20GA - SIDE BY SIDE 18.5" BLACK
New
UPC 682146891706 Free Shipping
$513.24 Timber Hole Outdoors ★★★★★ (5)
CITADEL BOSS SS COACH 20GA - SIDE BY SIDE 18.5" BLK/NICKEL
New
UPC 682146891720 CC Fee 6%
$514.95 All Things Firearm ★★★★★ (3)
Citadel Boss SS Coach 20 Gauge Side by Side Shotgun, 18.5" Blued
New
UPC 682146891706 Shipping $10
$516.99 Alexander's Store ★★★★★ (1,532)
LEGACY SPORTS INTERNATIONAL CITADEL COACH 20/18.5 NKL/WD
New
UPC 682146891720 CC Fee 3%
$516.99 Cornerstone Arms ★★★★★ (373)
Legacy Sports Citadel Boss SxS 20 Gauge 18.5 in Blued
New
UPC 682146891706
$524.60 Georgia Guns & Ammo ★★★★★ (2)
LEGACY SPORTS INTERNATIONAL CITADEL COACH 20/18.5 BL/WD
New
UPC 682146891706 Free Shipping > $900 CC Fee 3% $10 Off Code CALIBERKING
$526.55 Armed in Michigan ★★★★★ (714)
Citadel Boss SS Coach SxS 20 Gauge 18.5 in.
New
UPC 682146891706
$527.04 Ferrari Firearms
LEGACY SPORTS INTERNATIONAL CITADEL COACH 20/18.5 BL/WD
New
UPC 682146891706
$529.48 MCM Tactical ★★★★★ (60)
CITADEL COACH 20/18.5 NKL/WD
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UPC 682146891720 Shipping $20
$529.95 DK Gun & Dog ★★★★★ (56)
CITADEL BOSS SS COACH 20GA - SXS 18.5" HEAT TEMPERED WALNUT
New
UPC 682146897456 Free Shipping
$529.99 Cummings Family Firearms ★★★★★ (52)
LEGACY CITADEL BOSS SS COACH SXS 20GA 18.5" NKL
New
UPC 682146891720
$531.53 Ecommerce Arms
CITADEL COACH 20/18.5 BL/WD
New
UPC 682146891706 Shipping $20
$533.00 DK Gun & Dog ★★★★★ (56)
Citadel Coach 20ga Side by Side Shotgun 18" Barrel
New
UPC 682146897456
$533.99 Good 4 Guns ★★★★★ (276)
LEGACY SPORTS INTERNATIONAL CITADEL COACH 20/18.5 BL/WD
New
UPC 682146891706 Free Shipping > $1,000 CC Fee 3%
$534.05 Bunker Hill Ballistics ★★★★★ (9)
CITADEL BOSS SS COACH 20GA - SIDE BY SIDE 18.5" BLACK
New
UPC 682146891706 Shipping $20
$536.80 Custom Creatives Group ★★★★★ (24)
Citadel Boss SS Coach SxS Shotgun 20ga 18.5in Nickel
New
UPC 682146891720
$537.45 Georgia Guns & Ammo ★★★★★ (2)
LEGACY SPORTS INTERNATIONAL CITADEL COACH 20/18.5 NKL/WD
New
UPC 682146891720 Free Shipping > $900 CC Fee 3% $10 Off Code CALIBERKING
$539.45 Armed in Michigan ★★★★★ (714)
Legacy Sports Citadel Boss Coach 20 Gauge 18.5 in Nickel
New
UPC 682146891720
$539.95 Ferrari Firearms
Citadel Boss SS Coach Side-By-Side Shotgun 20 Gauge 18.5 Inch Blued
New
UPC 682146891706 Shipping $16
$540.98 Caliber Depot ★★★★★ (6)
Citadel Boss SS Coach 20 Gauge 18.5 in. 2-Round SxS
New
UPC 682146891706 Free Shipping
$541.68 Axolotl Arms ★★★★★ (126)
CITADEL BOSS SS COACH 20GA - SIDE BY SIDE 18.5" BLK/NICKEL
New
UPC 682146891720 Shipping $19 Free Shipping > $750
$542.45 Riddle Firearms
CITADEL BOSS SS COACH 20GA - SIDE BY SIDE 18.5" BLK/NICKEL
New
UPC 682146891720
$542.45 MCM Tactical ★★★★★ (60)
Citadel CITSBS2018HT Coach 20 Gauge 3" Chamber 2rd 18.50" Blued Barrel Case Coloring/Heat Treatment Receiver Fixed Walnut Stock
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UPC 682146897456 CC Fee 3%
$543.99 Cornerstone Arms ★★★★★ (373)
LEGACY SPORTS INTERNATIONAL CITADEL COACH 20/18.5 NKL/WD
New
UPC 682146891720 Free Shipping > $700
$545.05 Safe Haven Defense
Citadel Boss SS Coach Side-By-Side Shotgun 20 ga. 18.5 in. Blued
New
UPC 682146891706
$545.61 Tungsten Creek Tactical
Legacy Sports Citadel Boss SxS Shotgun 20ga 3" Chamber 2rd Capacity 18.5" Barrel Blued Walnut Stock
New
UPC 682146891706 Shipping $18
$546.56 Sharp's Shooting Supply ★★★★★ (34)
LEGACY CITADEL BOSS SS COACH SXS 20GA 18.5" BLUED
New
UPC 682146891706
$549.00 Birmingham Hill Armory ★★★★★ (16)
LEGACY SPORTS INTERNATIONAL CITADEL COACH 20/18.5 NKL/WD
New
UPC 682146891720
$549.37 The Arsenal Project ★★★★★ (16)
Legacy Sports Citadel Boss SxS Shotgun 20ga 3" Chamber 2rd Capacity 18.5" Barrel Blued Walnut Stock
New
UPC 682146891706 Free Shipping
$549.69 Lightning Strike Arms ★★★★★ (32)
LEGACY SPORTS INTERNATIONAL CITADEL COACH 20/18.5 NKL/WD
New
UPC 682146891720 Shipping $20
$549.94 Custom Creatives Group ★★★★★ (24)
CITADEL BOSS SS COACH 20GA - SIDE BY SIDE 18.5" BLK/NICKEL
New
UPC 682146891720 $5 Off - Use Code CALIBERKING
$554.45 Gun Place ★★★★★ (206)
Citadel Boss SS Coach 20 GA 18.5" 2-Round Side-by-Side
New
UPC 682146891720 Free Shipping
$554.94 Axolotl Arms ★★★★★ (126)
LSI CITADEL BOSS COACH SXS 20GA 18.5 NKL
New
UPC 682146891720 Free Shipping
$554.94 Timber Hole Outdoors ★★★★★ (5)
Legacy Sports Citadel Boss SxS Shotgun 20ga 3" Chamber 2rd Capacity 18.5" Barrel Blued Walnut Stock
New
UPC 682146891706 Free Shipping
$555.99 Canoe Creek Armory ★★★★★ (17)
CITADEL BOSS SS COACH 20GA - SIDE BY SIDE 18.5" BLACK
New
UPC 682146891706
$555.99 Pathfinder Militaria ★★★★★ (106)
LEGACY CITADEL BOSS SS COACH SXS 20GA 18.5" BLUED
New
UPC 682146891706 Shipping $15
$556.99 Extreme Products ★★★★★ (83)
Citadel Boss SxS Coach 20GA, 18.5in. Barrel, 2rd, Wood Stock & Forend - Gray (CITSBS2018NKL)
New
UPC 682146891720 Free Shipping
$559.94 Shooting Surplus ★★★★★ (193)
Legacy Sports Citadel Boss SxS Shotgun 20ga 3" Chamber 2rd Capacity 18.5" Barrel Nickel Walnut Stock
New
UPC 682146891720 Shipping $18
$559.94 Sharp's Shooting Supply ★★★★★ (34)
LEGACY SPORTS INTERNATIONAL CITADEL COACH 20/18.5 BL/WD
New
UPC 682146891706 Shipping $20 Free Shipping > $1,000
$561.20 Life2A ★★★★★ (3)
LEGACY SPORTS INTERNATIONAL CITADEL COACH 20/18.5 BL/WD
New
UPC 682146891706
$561.20 Allied Arms ★★★★★ (310)
LEGACY CITADEL BOSS SS COACH SXS 20GA 18.5" BLUED
New
UPC 682146891706
$561.99 Big Bee Bee ★★★★★ (11)
LEGACY SPORTS INTERNATIONAL CITADEL COACH 20/18.5 NKL/WD
New
UPC 682146891720
$562.00 Birmingham Hill Armory ★★★★★ (16)
Citadel Coach Side by Side Shotgun 20ga 3" Chamber 2rd Capacity 18" Barrel Case Colored
New
UPC 682146897456
$562.96 Ecommerce Arms
Citadel Boss SS Coach Side-By-Side Shotgun 20 ga. 18.5 in. Blued
New
UPC 682146891706 Free Shipping
$564.99 Timberlake Firearms ★★★★★ (11)
Legacy Sports Citadel Boss SxS Shotgun 20ga 3" Chamber 2rd Capacity 18.5" Barrel Nickel Walnut Stock
New
UPC 682146891720 Free Shipping
$568.99 Canoe Creek Armory ★★★★★ (17)
CITADEL BOSS SS COACH 20GA - SIDE BY SIDE 18.5" BLK/NICKEL
New
UPC 682146891720
$568.99 Pathfinder Militaria ★★★★★ (106)
Citadel Coach Side-by-Side 20 Gauge 18.5" Shotgun
New
UPC 682146897456
$569.74 Georgia Guns & Ammo ★★★★★ (2)
CITADEL BOSS SS COACH 20GA - SXS 18.5" HEAT TEMPERED WALNUT
New
UPC 682146897456 Free Shipping > $900 CC Fee 3% $10 Off Code CALIBERKING
$571.86 Armed in Michigan ★★★★★ (714)
CITADEL BOSS SS COACH 20GA - SXS 18.5" HEAT TEMPERED WALNUT
New
UPC 682146897456
$572.39 Ferrari Firearms
LEGACY SPORTS INTERNATIONAL CITADEL COACH 20/18.5 BL/WD
New
UPC 682146891706 Free Shipping
$573.72 Conkey's Outdoors ★★★★★ (175)
CITADEL BOSS SS COACH 20GA - SIDE BY SIDE 18.5" BLK/NICKEL
New
UPC 682146891720 Shipping $20 Free Shipping > $1,000
$574.94 Life2A ★★★★★ (3)
LEGACY SPORTS INTERNATIONAL CITADEL COACH 20/18.5 NKL/WD
New
UPC 682146891720
$574.94 Allied Arms ★★★★★ (310)
CITADEL BOSS SS COACH 20GA - SIDE BY SIDE 18.5" BLK/NICKEL
New
UPC 682146891720
$574.99 Big Bee Bee ★★★★★ (11)
CITADEL BOSS SS COACH 20GA - SXS 18.5" HEAT TEMPERED WALNUT
New
UPC 682146897456 Shipping $19 Free Shipping > $750
$575.04 Riddle Firearms
CITADEL BOSS SS COACH 20GA - SXS 18.5" HEAT TEMPERED WALNUT
New
UPC 682146897456
$575.04 MCM Tactical ★★★★★ (60)
Citadel Coach Side by Side Shotgun 20ga 3" Chamber 2rd Capacity 18" Barrel Case Colored
New
UPC 682146897456
$575.04 Vizards Guns and Ammo ★★★★★ (1,070)
LEGACY SPORTS INTERNATIONAL CITADEL COACH 20/18.5 NKL/WD
New
UPC 682146891720 Free Shipping > $1,000 CC Fee 3%
$577.44 Bunker Hill Ballistics ★★★★★ (9)
CITADEL BOSS SS COACH 20GA - SXS 18.5" HEAT TEMPERED WALNUT
New
UPC 682146897456 Free Shipping > $700
$577.69 Safe Haven Defense

20 Gauge Citadel Guns Price Graph

Today's 20 Gauge Citadel Guns average is $431.11, 10% below the 180-day average of $481.10. Over the last 180 days, the average peaked at $597.81 on March 28, 2026 and bottomed at $323.99 on August 7, 2026.

Daily Deals Email

Products at their 90-day low price.

Unsubscribe anytime with one click.

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