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AR 15 Upper Kit

Looking for AR 15 Upper Kit? We have thousands of rifles, handguns, and shotguns in stock. If you don't find what you are looking for on this page, check out the categories listed on the left side for more guns, ammo, and accessories.

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.

Patriot Ordnance Factory AR-15 Roller Cam Pin and Gas Key Upgrade Kit 00393
8-POF-RCPK223
$45.67
IN STOCK at Warehouse
8
AR-15 Matched Upper Build Kit with A3  T  Marked Upper, Bolt Carrier Group and Charging Handle , Black
ARR-654
$299.97
IN STOCK at Warehouse
1
ERGO Grip AR-15 SureGrip Deluxe Tactical Grip Kit Ambidextrous Polymer Black 4045BK
60120
$32.56
IN STOCK at Warehouses
2,1,4,8,9
DPMS AR-15 A4 Upper Receiver Parts Kit with Charging Handle
ARR-573
$34.97
IN STOCK at Warehouse
1
Del-Ton AR-15 A4 Upper Receiver Parts Kit
ARR-5730
$19.97
IN STOCK at Warehouse
1
ERGO Grip AR-15 Upper Receiver Spring Replacement Kit 5 Piece 4611
8-ERGO-4611
$4.06
IN STOCK at Warehouses
8,9
ERGO Grip AR-15 Upper Receiver Spring Replacement Kit 5 Piece 4611
9-105457
$4.21
IN STOCK at Warehouses
8,9
Doublestar AR-15 Extractor Upgrade Kit AR125
8-DSC-AR125
$8.11
IN STOCK at Warehouse
8
AR-15 Delta Pak DPMS Barrel Spring Barrel Spring Ring and Delta Ring
ARR-540
$9.97
IN STOCK at Warehouse
1
AR-15 Bolt Component Kit Del-Ton Ejector Extractor Pins Rings and Gas Rings
ARR-5420
$19.97
IN STOCK at Warehouse
1
AR-15 Bolt Component Kit DPMS Blaster Pak Ejector Extractor Pins Rings and Gas Rings
ARR-542
$17.97
IN STOCK at Warehouse
1
Pro-Shot AR-15 Total Fouling Removal Brush Kit Nylon TFR-AR
3-1212519
$14.49
IN STOCK at Warehouse
3
IOSSO Products AR-15 Complete Rifle Cleaning Kit 19515
8-IOSSO-19515
$39.12
IN STOCK at Warehouse
8
ERGO Grip AR-15 SureGrip Deluxe Tactical Grip Kit Ambidextrous Polymer Black 4045BK
2-EG4045BK
$32.56
IN STOCK at Warehouses
2,1,4,8,9
ERGO Grip AR-15 SureGrip Deluxe Tactical Grip Kit Ambidextrous Polymer Olive Drab 4045OD
60121
$26.25
IN STOCK at Warehouses
2,4,9
ERGO Grip AR-15 SureGrip Deluxe Tactical Grip Kit Ambidextrous Polymer Olive Drab 4045OD
9-105376
$26.00
IN STOCK at Warehouses
2,4,9
CMMG AR-15 Parts Kit Upper Pins and Springs 55AFF2F
8-CMMG-55AFF2F
$11.18
IN STOCK at Warehouses
7,8
CMMG AR-15 Parts Kit Upper Pins and Springs 55AFF2F
7-55AFF2F
$11.40
IN STOCK at Warehouses
7,8
ERGO Grip AR-15 SureGrip Deluxe Tactical Grip Kit Ambidextrous Polymer Black 4045BK
8-ERGO-4045BK
$32.56
IN STOCK at Warehouses
2,1,4,8,9
ERGO Grip AR-15 SureGrip Deluxe Tactical Grip Kit Ambidextrous Polymer Black 4045BK
9-105374
$32.56
IN STOCK at Warehouses
2,1,4,8,9
CMMG Mk4 AR-15 Upper Assembly Flat Top Aluminum Black 55BA22C
7-55BA22C
$102.84
IN STOCK at Warehouses
2,7
CMMG Mk4 AR-15 Upper Assembly Flat Top Aluminum Black 55BA22C
2-CMMG55BA22C
$96.40
IN STOCK at Warehouses
2,7
Wheeler Delta Series AR-15 Armorer's Professional Kit 19 Piece 156555
7-156555
$150.65
IN STOCK at Warehouses
11,12,2,3,4,6,7,8,9
Wheeler Delta Series AR-15 Armorer's Professional Kit 19 Piece 156555
85624
$146.26
IN STOCK at Warehouses
11,12,2,3,4,6,7,8,9
Wheeler Delta Series AR-15 Armorer's Professional Kit 19 Piece 156555
6-1030385
$185.62
IN STOCK at Warehouses
11,12,2,3,4,6,7,8,9
IOSSO Products AR-15 4 Brush Kit Blue Nyflex 19115
8-IOSSO-19115
$10.03
IN STOCK at Warehouse
8
CMMG Inc. AR-15 Ejection Port Door Cover Kit Aluminum Black 55BA6E3
7-55BA6E3
$8.22
IN STOCK at Warehouse
7
Chiappa Firearms M4-22 Pro Upper Conversion Kit .22 Long Rifle 16  Barrel 28 Rounds Black Finish with 11.8 Quadrail Forearm CF500.095
10-0409406
$445.37
IN STOCK at Warehouses
10,11,12,2,3
Chiappa Firearms M4-22 Pro Upper Conversion Kit .22 Long Rifle 16  Barrel 28 Rounds Black Finish with 11.8 Quadrail Forearm CF500.095
11-0409406
$445.37
IN STOCK at Warehouses
10,11,12,2,3
Chiappa Firearms M4-22 Pro Upper Conversion Kit .22 Long Rifle 16  Barrel 28 Rounds Black Finish with 11.8 Quadrail Forearm CF500.095
12-0409406
$445.37
IN STOCK at Warehouses
10,11,12,2,3
Chiappa Firearms M4-22 Pro Upper Conversion Kit .22 Long Rifle 16  Barrel 28 Rounds Black Finish with 11.8 Quadrail Forearm CF500.095
3-0409406
$445.37
IN STOCK at Warehouses
10,11,12,2,3
Chiappa Firearms M4-22 Pro Upper Conversion Kit .22 Long Rifle 16  Barrel 28 Rounds Black Finish with 11.8 Quadrail Forearm CF500.095
2-CHP500-095
$347.83
IN STOCK at Warehouses
10,11,12,2,3
Yankee Hill Specter Black Diamond AR-15 Upper Conversion Kit 9mm Luger 16  Barrel with Flip Up Sights Black Finish 7810-9K
7-YHM78109K
$989.10
IN STOCK at Warehouse
7
CMMG Barrel Collar Assembly for AR-15 .22 LR Collar Stainless Steel 22BA415
2-CMMG22BA415
$46.25
IN STOCK at Warehouse
2
CMMG AR-15 Carbine Gas Tube Kit Stainless Steel Silver 55DA193
7-55DA193
$13.37
IN STOCK at Warehouse
7
DS Arms ZM4R AR-15 Complete Lower Receiver Multi Caliber 6 Position Collapsible Stock Black ZM4R8988-A
2-DSAZM4R8988-A
$204.40
IN STOCK at Warehouse
2
Bushmaster AR-15 Complete Lower Receiver Standard Trigger ACE Skeleton Rifle Stock Aluminum Black 92960
10-0135835
$362.87
IN STOCK at Warehouses
10,12,3,8
Del-Ton AR-15 Complete Forged Lower Receiver with A2 Grip and Six Position Collapsible Stock Aluminum Black LR102T
7-GLR102T
$226.45
IN STOCK at Warehouse
7
Del-Ton AR-15 Complete Forged Lower Receiver with A2 Stock/Grip Aluminum Black LR102-F
7-GLR102F
$226.45
IN STOCK at Warehouse
7
ERGO Grip AR-15 SureGrip Deluxe Tactical Grip Kit Ambidextrous Polymer Olive Drab 4045OD
2-EG4045OD
$28.09
IN STOCK at Warehouses
2,4,9
Wheeler Delta Series AR-15 Armorer's Professional Kit 19 Piece 156555
2-WH156555
$165.53
IN STOCK at Warehouses
11,12,2,3,4,6,7,8,9
Wheeler Delta Series AR-15 Armorer's Professional Kit 19 Piece 156555
8-WH-156555
$162.22
IN STOCK at Warehouses
11,12,2,3,4,6,7,8,9
Wheeler Delta Series AR-15 Armorer's Professional Kit 19 Piece 156555
9-109471
$151.43
IN STOCK at Warehouses
11,12,2,3,4,6,7,8,9
Wheeler Delta Series AR-15 Armorer's Professional Kit 19 Piece 156555
11-1030385
$185.62
IN STOCK at Warehouses
11,12,2,3,4,6,7,8,9
Wheeler Delta Series AR-15 Armorer's Professional Kit 19 Piece 156555
12-1030385
$185.62
IN STOCK at Warehouses
11,12,2,3,4,6,7,8,9
Wheeler Delta Series AR-15 Armorer's Professional Kit 19 Piece 156555
3-1030385
$185.62
IN STOCK at Warehouses
11,12,2,3,4,6,7,8,9
Tactical Industries Target Master AR-15 .22 Conversion Kit 26 Round Black Dog Magazine Black Oxide Finish
ARR-590
$139.97
IN STOCK at Warehouse
1
DPMS Lite 16  AR-15 A3 Complete Rifle Kit Minus the Stripped Lower
2-DPKTA3-L16
$494.14
IN STOCK at Warehouse
2
AR-15 Ejection Port Cover Assembly LBE Unlimited
2-LBAREPC
$8.75
IN STOCK at Warehouses
2,1
AR-15 Ejection Port Cover Assembly LBE Unlimited
ARR-773
$9.97
IN STOCK at Warehouses
2,1
DPMS AP4 AR-15 Carbine Kit Complete Less Lower Reciever KT-AP4-LL
2-DPKT-AP4-LL
$594.46
IN STOCK at Warehouses
2,8
DPMS AP4 AR-15 Carbine Kit Complete Less Lower Reciever KT-AP4-LL
8-DPMS-KTAP4LL
$649.42
IN STOCK at Warehouses
2,8
DPMS Oracle 5.56 NATO / .223 Rem Complete AR-15 Rifle Kit KT-OC
8-DPMS-KTOC
$476.62
IN STOCK at Warehouses
2,8
CMMG, Inc. AR-15 .223 Rem/5.56 NATO Bolt Rehab Parts Kit 55AFF68
8-CMMG-55AFF68
$26.19
IN STOCK at Warehouse
8
Stag Arms AR-15 Semi Automatic Complete Lower Receiver Mil Spec 6 Position Stock Black TACTLOWER
11-0129059
$278.76
IN STOCK at Warehouses
10,11,12,3,6
Stag Arms AR-15 Semi Automatic Complete Lower Receiver Mil Spec 6 Position Stock Black TACTLOWER
10-0129059
$278.76
IN STOCK at Warehouses
10,11,12,3,6
Stag Arms AR-15 Semi Automatic Complete Lower Receiver Mil Spec 6 Position Stock Black TACTLOWER
3-0129059
$278.76
IN STOCK at Warehouses
10,11,12,3,6
Stag Arms AR-15 Semi Automatic Complete Lower Receiver Mil Spec 6 Position Stock Black TACTLOWER
12-0129059
$278.76
IN STOCK at Warehouses
10,11,12,3,6
Stag Arms AR-15 Semi Automatic Complete Lower Receiver Mil Spec 6 Position Stock Black TACTLOWER
6-0129059
$278.76
IN STOCK at Warehouses
10,11,12,3,6
M4 Rifle Kit Complete Less Lower, 16  M-4 Barrel 1x7  Twist Standard Carbine Handguards and 6 Position Stock
ARR-646
$499.97
IN STOCK at Warehouse
1
M4 Rifle Kit Complete Less Lower, 16  M-4 Barrel 1x9  Twist CAR Handguards and 6 Pos Stock
ARR-647
$499.97
IN STOCK at Warehouse
1
Adams Arms AR-15 Gas Piston Conversion Retrofit Kit Rifle Length .750  Diameter Railed Gas Block Polymer Handguards Black RPS-D-ADA
6-1030737
$324.81
IN STOCK at Warehouses
11,2,3,4,6,8
Adams Arms AR-15 Gas Piston Conversion Retrofit Kit Rifle Length .750  Diameter Railed Gas Block Polymer Handguards Black RPS-D-ADA
68150
$324.81
IN STOCK at Warehouses
11,2,3,4,6,8
Adams Arms AR-15 Gas Piston Conversion Retrofit Kit Rifle Length .750  Diameter Railed Gas Block Polymer Handguards Black RPS-D-ADA
8-ADAMS-RPSDADA
$324.81
IN STOCK at Warehouses
11,2,3,4,6,8
Adams Arms AR-15 Gas Piston Conversion Retrofit Kit Rifle Length .750  Diameter Railed Gas Block Polymer Handguards Black RPS-D-ADA
11-1030737
$324.81
IN STOCK at Warehouses
11,2,3,4,6,8
Adams Arms AR-15 Gas Piston Conversion Retrofit Kit Rifle Length .750  Diameter Railed Gas Block Polymer Handguards Black RPS-D-ADA
2-ADARPS-D-ADA-S
$324.81
IN STOCK at Warehouses
11,2,3,4,6,8
Adams Arms AR-15 Gas Piston Conversion Retrofit Kit Rifle Length .750  Diameter Railed Gas Block Polymer Handguards Black RPS-D-ADA
3-1030737
$324.81
IN STOCK at Warehouses
11,2,3,4,6,8
Heckler and Koch MR556 Complete Upper Receiver Kit 235975A5
82558
$2,011.90
IN STOCK at Warehouses
4,8
Fail Zero AR-15 BCG Kit No Hammer Mil-Spec EXO Technology Finish 
009-FZAR15-01-NH
2-FZ009-FZAR15-01-NH
$131.04
IN STOCK at Warehouse
2
Wheeler AR-15 Receiver Link 156000
7-156000
$8.46
IN STOCK at Warehouses
7,8
DPMS Oracle 5.56 Complete Rifle Kit Minus the Stripped Lower
2-DPKT-OC
$461.94
IN STOCK at Warehouses
2,8
Wheeler AR-15 Receiver Link 156000
8-WH-156000
$8.74
IN STOCK at Warehouses
7,8
Wheeler AR-15 Delta Series Armorer's 7 Piece Essentials Kit with Carry Bag 156111
8-WH-156111
$79.33
IN STOCK at Warehouses
10,11,12,2,4,6,8,9
Wheeler AR-15 Delta Series Armorer's 7 Piece Essentials Kit with Carry Bag 156111
85623
$71.52
IN STOCK at Warehouses
10,11,12,2,4,6,8,9
Wheeler AR-15 Delta Series Armorer's 7 Piece Essentials Kit with Carry Bag 156111
9-109466
$74.30
IN STOCK at Warehouses
10,11,12,2,4,6,8,9
Wheeler AR-15 Delta Series Armorer's 7 Piece Essentials Kit with Carry Bag 156111
10-1212506
$92.71
IN STOCK at Warehouses
10,11,12,2,4,6,8,9
Wheeler AR-15 Delta Series Armorer's 7 Piece Essentials Kit with Carry Bag 156111
11-1212506
$92.71
IN STOCK at Warehouses
10,11,12,2,4,6,8,9
Wheeler AR-15 Delta Series Armorer's 7 Piece Essentials Kit with Carry Bag 156111
12-1212506
$92.71
IN STOCK at Warehouses
10,11,12,2,4,6,8,9
Wheeler AR-15 Delta Series Armorer's 7 Piece Essentials Kit with Carry Bag 156111
2-WH156111
$80.94
IN STOCK at Warehouses
10,11,12,2,4,6,8,9
Wheeler AR-15 Delta Series Armorer's 7 Piece Essentials Kit with Carry Bag 156111
6-1212506
$92.71
IN STOCK at Warehouses
10,11,12,2,4,6,8,9
Black Dawn AR-15 Stripped Lower Receiver Aluminum MILS 8625 Type III Class 2 Black Anodized Finish BDR-15SL
9-100886
$106.80
IN STOCK at Warehouse
9
Black Dawn AR-15 Stripped Lower Receiver Aluminum Flat Dark Earth BDR-15SL-FDE
9-102193
$126.00
IN STOCK at Warehouse
9
CMMG AR-15 Mid Length Gas Tube Kit with Pin Stainless Steel SIlver 55DA1EE
7-55DA1EE
$14.27
IN STOCK at Warehouse
7
CMMG AR-15 Rifle Length Gas Tube Kit with Pin Stainless Steel SIlver 55DA196
7-55DA196
$15.17
IN STOCK at Warehouse
7
Stag Arms Left Handed .22LR Conversion Kit With Magazine
2-SA1K22L
$193.28
IN STOCK at Warehouse
2
 
 
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