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Remington 870 20 Gauge Magazine

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Need something for your AR-15 or AK-47? We have it! At Cheaper Than Dirt! We have the largest collection of accessories for your firearm. We have lights, lasers, scopes, grips, magazines, sights, and much more. You'll find everything you need. And, because we ship from several warehouses, we have the largest inventory at the lowest prices anywhere on the internet.

Remington Universal Magazine Cap with Swivel Stud 20 Gauge
6-1021801
$19.81
IN STOCK at Warehouses
10,11,3,6,7
Remington Universal Magazine Cap with Swivel Stud 20 Gauge
3-1021801
$19.81
IN STOCK at Warehouses
10,11,3,6,7
Remington 12 Gauge 870, 1100, 11-87 +3 Magazine Extension Kit for 20  Barrels Blued
6-1024251
$53.80
IN STOCK at Warehouse
6
Remington Universal Magazine Cap with Swivel Stud 20 Gauge
7-19461
$16.23
IN STOCK at Warehouses
10,11,3,6,7
Remington Universal Magazine Cap with Swivel Stud 20 Gauge
11-1021801
$19.81
IN STOCK at Warehouses
10,11,3,6,7
Remington Universal Magazine Cap with Swivel Stud 20 Gauge
10-1021801
$19.81
IN STOCK at Warehouses
10,11,3,6,7
Remington 18  870 1100 11-87 +2 Magazine Extension Kit 12 Gauge Parkerized
20-REM19420
$61.95
IN STOCK at Warehouses
2,20,4,7,8
Remington 870 12 Gauge 20  Magazine Tube Extension Kit 3 Rounds Stainless Steel Blued Finish 19421
20-REM19421
$44.84
IN STOCK at Warehouses
2,20,7,8
Remington 870 12 Gauge 20  Magazine Tube Extension Kit 3 Rounds Stainless Steel Blued Finish 19421
3-1024251
$53.80
IN STOCK at Warehouse
3
Remington 870 12 Gauge 20  Magazine Tube Extension Kit 3 Rounds Stainless Steel Blued Finish 19421
10-1024251
$53.80
IN STOCK at Warehouse
10
Remington 870 12 Gauge 20  Magazine Tube Extension Kit 3 Rounds Stainless Steel Blued Finish 19421
12-1024251
$53.80
IN STOCK at Warehouse
12
Remington 870 12 Gauge 20  Magazine Tube Extension Kit 3 Rounds Stainless Steel Blued Finish 19421
8-REM-19421
$42.21
IN STOCK at Warehouses
2,20,7,8
Remington 870 12 Gauge 20  Magazine Tube Extension Kit 3 Rounds Stainless Steel Blued Finish 19421
7-19421
$44.84
IN STOCK at Warehouses
2,20,7,8
Remington 870 12 Gauge 20  Magazine Tube Extension Kit 3 Rounds Stainless Steel Blued Finish 19421
2-REM19421
$41.35
IN STOCK at Warehouses
2,20,7,8
TacStar 10-Shot Remington 870 Shotgun Magazine Extension
20-LY1081179
$61.91
IN STOCK at Warehouses
10,2,20,3,4,6,9
TacStar Shotgun Mag Extension, 10 Shot, Remington 1100 1187, Adds 5 Rounds
20-LY1081180
$61.91
IN STOCK at Warehouses
10,2,20,3,4,6,9
ATI Remington 870 Seven Shot Magazine Extension Aluminum Black
20-ATIA5102305
$34.53
IN STOCK at Warehouses
20,3
Remington 12 Gauge 20  870, 1100, 11-87 +3 Magazine Extension Kit Parkerized 19422
7-19422
$61.95
IN STOCK at Warehouses
2,4,7,9
Remington 12 Gauge 20  870, 1100, 11-87 +3 Magazine Extension Kit Parkerized 19422
9-93007
$54.19
IN STOCK at Warehouses
2,4,7,9
Remington 12 Gauge 20  870, 1100, 11-87 +3 Magazine Extension Kit Parkerized 19422
2-REM19422
$57.14
IN STOCK at Warehouses
2,4,7,9
Remington 12 Gauge 20  870, 1100, 11-87 +3 Magazine Extension Kit Parkerized 19422
76115
$55.76
IN STOCK at Warehouses
2,4,7,9
Remington 870 12 Gauge Magazine Tube Extension Kit +2 Rounds Steel Blued 19419
20-REM19419
$44.84
IN STOCK at Warehouses
10,2,20
TacStar Parkerized Shotgun Mag Extension 7 Shot Remington 870, 1100, and 1187 Plus 2 Rounds
20-LY1081184
$59.89
IN STOCK at Warehouses
2,20,4,7,8,9
Uncle Mike's Shotgun Swivel Cap Set Remington 870 20 Gauge Aluminum Black 1801-5
44408
$12.86
IN STOCK at Warehouses
10,3,4,6,8
Uncle Mike's Shotgun Swivel Cap Set Remington 870 20 Gauge Aluminum Black 1801-5
10-1019578
$15.71
IN STOCK at Warehouses
10,3,4,6,8
Uncle Mike's Shotgun Swivel Cap Set Remington 870 20 Gauge Aluminum Black 1801-5
3-1019578
$15.71
IN STOCK at Warehouses
10,3,4,6,8
Uncle Mike's Shotgun Swivel Cap Set Remington 870 20 Gauge Aluminum Black 1801-5
8-UM-18015
$13.87
IN STOCK at Warehouses
10,3,4,6,8
Uncle Mike's Shotgun Swivel Cap Set Remington 870 20 Gauge Aluminum Black 1801-5
6-1019578
$15.71
IN STOCK at Warehouses
10,3,4,6,8
GG&G Remington 870 20 Gauge Follower Stainless Steel Body Red Aluminum Insert GGG-1666
2-GGG1666
$24.37
IN STOCK at Warehouse
2
TacStar Remington 870, 1100, 11-87 8 Shot Magazine Extension 12 Gauge Steel Black Finish 1081170
9-12599
$42.60
IN STOCK at Warehouses
10,11,12,2,3,4,6,7,8
TacStar Remington 870, 1100, 11-87 8 Shot Magazine Extension 12 Gauge Steel Black Finish 1081170
3-1015860
$57.76
IN STOCK at Warehouses
10,11,12,2,3,4,6,7,8
TacStar Remington 870, 1100, 11-87 8 Shot Magazine Extension 12 Gauge Steel Black Finish 1081170
2-TAC1081170
$44.89
IN STOCK at Warehouses
10,11,12,2,3,4,6,7,8
TacStar Remington 870, 1100, 11-87 8 Shot Magazine Extension 12 Gauge Steel Black Finish 1081170
7-1081170
$47.78
IN STOCK at Warehouses
10,11,12,2,3,4,6,7,8
TacStar Remington 870, 1100, 11-87 8 Shot Magazine Extension 12 Gauge Steel Black Finish 1081170
6-1015860
$57.76
IN STOCK at Warehouses
10,11,12,2,3,4,6,7,8
TacStar Remington 870, 1100, 11-87 8 Shot Magazine Extension 12 Gauge Steel Black Finish 1081170
31984
$41.32
IN STOCK at Warehouses
10,11,12,2,3,4,6,7,8
TacStar Remington 870, 1100, 11-87 8 Shot Magazine Extension 12 Gauge Steel Black Finish 1081170
11-1015860
$57.76
IN STOCK at Warehouses
10,11,12,2,3,4,6,7,8
TacStar Remington 870, 1100, 11-87 8 Shot Magazine Extension 12 Gauge Steel Black Finish 1081170
12-1015860
$57.76
IN STOCK at Warehouses
10,11,12,2,3,4,6,7,8
TacStar Remington 870, 1100, 11-87 8 Shot Magazine Extension 12 Gauge Steel Black Finish 1081170
10-1015860
$57.76
IN STOCK at Warehouses
10,11,12,2,3,4,6,7,8
TacStar Remington 870, 1100, 11-87 8 Shot Magazine Extension 12 Gauge Steel Black Finish 1081170
8-TAC-1081170
$48.04
IN STOCK at Warehouses
10,11,12,2,3,4,6,7,8
Outdoor Connection Total Magazine Cap for Remington 20 Gauge 870 1100 and 11-87
7-79520
$15.09
IN STOCK at Warehouses
4,7
Butler Creek Shotgun Plug Plastic Black Fits Most 12 16 & 20 Gauge Shotguns
10-1021490
$4.09
IN STOCK at Warehouses
10,12,3,4,6,8
Remington Model 870 Express Pump Action Shotgun 20 Gauge 18  Barrel 7 Rounds 3  Chamber Synthetic Stock Matte Black Finish
8-REM-81100
IN STOCK at Warehouse
8
Remington Model 870 Express Pump Action Shotgun 20 Gauge 18  Barrel 7 Rounds 3  Chamber Synthetic Stock Matte Black Finish
11-0126560
IN STOCK at Warehouses
10,11,12,2,3,4,6
Remington Model 870 Express Pump Action Shotgun 20 Gauge 18  Barrel 7 Rounds 3  Chamber Synthetic Stock Matte Black Finish
2-REM81100
IN STOCK at Warehouses
10,11,12,2,3,4,6
Remington Model 870 Express Pump Action Shotgun 20 Gauge 18  Barrel 7 Rounds 3  Chamber Synthetic Stock Matte Black Finish
6-0126560
IN STOCK at Warehouses
10,11,12,2,3,4,6
HiViz Plan Barrel Snap On Front Sight Fits Most 12 Gauge Barrels Green
82866
$15.27
IN STOCK at Warehouses
2,4
Lancer Remington 870, 1100, 1187 12 Gauge Magazine Extension Tube 4 Rounds Carbon Fiber Black LSX-4X-R
20-LALSX4XR
$86.39
IN STOCK at Warehouse
20
Lancer Remington 870, 1100, 1187 12 Gauge Magazine Extension Tube 5 Rounds Carbon Fiber Black LSX-5X-R
20-LALSX5XR
$86.39
IN STOCK at Warehouse
20
Shotgun Plug Plastic Black Fits Most 12 16 & 20 Gauge Shotguns
23846
$3.54
IN STOCK at Warehouses
10,12,3,4,6,8
Pachmayr TacStar Tactical SideSaddle Remington Shotshell Carrier 12 Gauge 6 Rounds Black
20-LY1081157
$31.36
IN STOCK at Warehouses
2,20,4,6,7
ATI Shotgun Magazine Clamp with Sling Swivel 12 Gauge 1  Black SMC1100
20-ATISMC-1100
$8.61
IN STOCK at Warehouses
2,20,3,7,9
ATI Remington 8 Shot Fluted Aluminum Magazine Extension with Swivel Stud Cap Black A.5.10.1655
2-ADVA5101655
$42.29
IN STOCK at Warehouses
2,4,9
ATI Remington 8 Shot Fluted Aluminum Magazine Extension with Swivel Stud Cap Black A.5.10.1655
9-107271
$40.80
IN STOCK at Warehouses
2,4,9
ATI Remington 8 Shot Fluted Aluminum Magazine Extension with Swivel Stud Cap Black A.5.10.1655
92325
$39.70
IN STOCK at Warehouses
2,4,9
ATI Remington 8 Shot Fluted Aluminum Magazine Extension with Swivel Stud Cap Black A.5.10.1658
9-107273
$40.80
IN STOCK at Warehouses
4,9
ATI Remington 8 Shot Fluted Aluminum Magazine Extension with Swivel Stud Cap Black A.5.10.1658
92328
$39.70
IN STOCK at Warehouses
4,9
ATI Remington 8 Shot Fluted Aluminum Magazine Extension with Stand Off Cap Black A.5.10.1656
3-1030712
$54.45
IN STOCK at Warehouses
3,6,8,9
ATI Remington 8 Shot Fluted Aluminum Magazine Extension with Stand Off Cap Black A.5.10.1656
9-107272
$40.80
IN STOCK at Warehouses
3,6,8,9
ATI Remington 8 Shot Fluted Aluminum Magazine Extension with Stand Off Cap Black A.5.10.1656
6-1030712
$54.45
IN STOCK at Warehouses
3,6,8,9
ATI Remington 8 Shot Fluted Aluminum Magazine Extension with Stand Off Cap Black A.5.10.1656
8-AT-A5101656
$39.33
IN STOCK at Warehouses
3,6,8,9
Remington Model 870 Express Tactical Pump Action Shotgun 12 Gauge 18.5  Barrel 7 Rounds 3  Chamber XS Ghost Ring Sights Synthetic Stock Black Finish 81198
56472
IN STOCK at Warehouses
10,11,12,3,4,6,7
TacStar Shotgun 7 Shot Mag Extension Remington 870, 1100, 1187 Adds 2 Rounds 1081169
2-TAC1081169
$44.24
IN STOCK at Warehouses
10,11,2,3,4,6,7,8,9
TacStar Shotgun 7 Shot Mag Extension Remington 870, 1100, 1187 Adds 2 Rounds 1081169
3-1015144
$56.91
IN STOCK at Warehouses
10,11,2,3,4,6,7,8,9
TacStar Shotgun 7 Shot Mag Extension Remington 870, 1100, 1187 Adds 2 Rounds 1081169
31983
$40.71
IN STOCK at Warehouses
10,11,2,3,4,6,7,8,9
TacStar Shotgun 7 Shot Mag Extension Remington 870, 1100, 1187 Adds 2 Rounds 1081169
7-1081169
$47.07
IN STOCK at Warehouses
10,11,2,3,4,6,7,8,9
TacStar Shotgun 7 Shot Mag Extension Remington 870, 1100, 1187 Adds 2 Rounds 1081169
11-1015144
$56.91
IN STOCK at Warehouses
10,11,2,3,4,6,7,8,9
TacStar Shotgun 7 Shot Mag Extension Remington 870, 1100, 1187 Adds 2 Rounds 1081169
10-1015144
$56.91
IN STOCK at Warehouses
10,11,2,3,4,6,7,8,9
TacStar Shotgun 7 Shot Mag Extension Remington 870, 1100, 1187 Adds 2 Rounds 1081169
9-12588
$42.37
IN STOCK at Warehouses
10,11,2,3,4,6,7,8,9
TacStar Shotgun 7 Shot Mag Extension Remington 870, 1100, 1187 Adds 2 Rounds 1081169
8-TAC-1081169
$47.33
IN STOCK at Warehouses
10,11,2,3,4,6,7,8,9
TacStar Shotgun 7 Shot Mag Extension Remington 870, 1100, 1187 Adds 2 Rounds 1081169
6-1015144
$56.91
IN STOCK at Warehouses
10,11,2,3,4,6,7,8,9
Remington Model 870 Express Pump Action Shotgun 20 Gauge 18  Barrel 7 Rounds 3  Chamber Synthetic Stock Matte Black Finish
3-0126560
IN STOCK at Warehouses
10,11,12,2,3,4,6
Remington Model 870 Express Pump Action Shotgun 20 Gauge 18  Barrel 7 Rounds 3  Chamber Synthetic Stock Matte Black Finish
12-0126560
IN STOCK at Warehouses
10,11,12,2,3,4,6
Remington Model 870 Express Pump Action Shotgun 20 Gauge 18  Barrel 7 Rounds 3  Chamber Synthetic Stock Matte Black Finish
10-0126560
IN STOCK at Warehouses
10,11,12,2,3,4,6
Remington Model 870 Express Pump Action Shotgun 20 Gauge 18  Barrel 7 Rounds 3  Chamber Synthetic Stock Matte Black Finish
41038
IN STOCK at Warehouses
10,11,12,2,3,4,6
HiViz Plan Barrel Snap On Front Sight Fits Most 12 Gauge Barrels Green
2-NPMPB-TAC
$15.44
IN STOCK at Warehouses
2,4
Outdoor Connection Total Magazine Cap for Remington 20 Gauge 870 1100 and 11-87
58953
$15.93
IN STOCK at Warehouses
4,7
Remington Model 870 Express Tactical Pump Action Shotgun 12 Gauge 18.5  Barrel 7 Rounds 3  Chamber XS Ghost Ring Sights Synthetic Stock Black Finish 81198
10-0129254
IN STOCK at Warehouses
10,11,12,3,4,6,7
Remington Model 870 Express Tactical Pump Action Shotgun 12 Gauge 18.5  Barrel 7 Rounds 3  Chamber XS Ghost Ring Sights Synthetic Stock Black Finish 81198
2-REM81198
IN STOCK at Warehouse
2
Remington Model 870 Express Tactical Pump Action Shotgun 12 Gauge 18.5  Barrel 7 Rounds 3  Chamber XS Ghost Ring Sights Synthetic Stock Black Finish 81198
11-0129254
IN STOCK at Warehouses
10,11,12,3,4,6,7
Remington Model 870 Express Tactical Pump Action Shotgun 12 Gauge 18.5  Barrel 7 Rounds 3  Chamber XS Ghost Ring Sights Synthetic Stock Black Finish 81198
12-0129254
IN STOCK at Warehouses
10,11,12,3,4,6,7
Remington Model 870 Express Tactical Pump Action Shotgun 12 Gauge 18.5  Barrel 7 Rounds 3  Chamber XS Ghost Ring Sights Synthetic Stock Black Finish 81198
6-0129254
IN STOCK at Warehouses
10,11,12,3,4,6,7
Remington Model 870 Express Tactical Pump Action Shotgun 12 Gauge 18.5  Barrel 7 Rounds 3  Chamber XS Ghost Ring Sights Synthetic Stock Black Finish 81198
3-0129254
IN STOCK at Warehouses
10,11,12,3,4,6,7
Remington Model 870 Express Tactical Pump Action Shotgun 12 Gauge 18.5  Barrel 7 Rounds 3  Chamber XS Ghost Ring Sights Synthetic Stock Black Finish 81198
7-G81198
IN STOCK at Warehouses
10,11,12,3,4,6,7
Remington Model 870 Express Tactical Pump Action Shotgun 12 Gauge 18.5  Barrel 7 Rounds 3  Chamber XS Ghost Ring Sights Synthetic Stock Black Finish 81198
8-REM-81198
IN STOCK at Warehouse
8
Mesa Tactical Remington 870 12 Gauge 20  Saddle Mount SureShell 6 Shell Carrier with Mag Clamp and Rails Aluminum Black
2-MESA92130
$199.69
IN STOCK at Warehouse
2
Remington Model 870 Express 7 Shot Synthetic Pump Action Shotgun 20 Gauge 18  Barrel 7 Rounds 3  Chamber Knoxx SpecOps Stock Matte Black Finish
8-REM-81180
IN STOCK at Warehouses
11,12,3,4,7,8
Remington Model 870 Express 7 Shot Synthetic Pump Action Shotgun 20 Gauge 18  Barrel 7 Rounds 3  Chamber Knoxx SpecOps Stock Matte Black Finish
7-G81180
IN STOCK at Warehouses
11,12,3,4,7,8
Remington Model 870 Express 7 Shot Synthetic Pump Action Shotgun 20 Gauge 18  Barrel 7 Rounds 3  Chamber Knoxx SpecOps Stock Matte Black Finish
42057
IN STOCK at Warehouses
11,12,3,4,7,8
Remington Model 870 Express 7 Shot Synthetic Pump Action Shotgun 20 Gauge 18  Barrel 7 Rounds 3  Chamber Knoxx SpecOps Stock Matte Black Finish
12-0126880
IN STOCK at Warehouses
11,12,3,4,7,8
Remington Model 870 Express 7 Shot Synthetic Pump Action Shotgun 20 Gauge 18  Barrel 7 Rounds 3  Chamber Knoxx SpecOps Stock Matte Black Finish
3-0126880
IN STOCK at Warehouses
11,12,3,4,7,8
Remington Model 870 Express 7 Shot Synthetic Pump Action Shotgun 20 Gauge 18  Barrel 7 Rounds 3  Chamber Knoxx SpecOps Stock Matte Black Finish
11-0126880
IN STOCK at Warehouses
11,12,3,4,7,8
Pachmayr Hunter SideSaddle Remington Shotshell Carrier 20 Gauge 4 Rounds Black
11-1919567
$29.80
IN STOCK at Warehouses
10,11,3,4,6,9
 
 
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