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AR 15 Castle Nut

Looking for AR 15 Castle Nut? 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.

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TAPCO AR-15 Castle Nut 4140 Steel AR09102
6-1024398
$7.46
IN STOCK at Warehouses
1,6
LBE Unlimited AR15 Buffer Tube Castle Nut Manganese Phosphate Coated 4140 Steel ARCNUT
2-LBARCNUT
$5.19
IN STOCK at Warehouses
2,1
Slide Fire Solutions AR-15 Castle Nut Spanner Wrench Steel Black 11-0105
7-110105
$10.95
IN STOCK at Warehouse
7
AR-15 Carbine Castle Nut TAPCO INTRAFUSE 4140 Steel Manganese Phosphate Made In The U.S.A.
ARR-951
$7.97
IN STOCK at Warehouses
1,6
CMMG AR-15 Revo Keymod Barrel Nut Steel Black 55 DA244
8-CMMG-55DA244
$19.31
IN STOCK at Warehouse
8
Advanced Technology AR-15 Steel Castle Nut Universal Receiver Extension Steel Black A.5.10.1020
92322
$5.62
IN STOCK at Warehouses
4,8
Max-Ops AR-15 Buffer Tube Nut Wrench Steel
7-28197
$6.11
IN STOCK at Warehouses
7,8
Max-Ops AR-15 Buffer Tube Nut Wrench Steel
8-OC-BTNW28197
$5.75
IN STOCK at Warehouses
7,8
Steel Castle Nut LBE Unlimited
ARR-766
$5.97
IN STOCK at Warehouses
2,1
ATI AR-15 Commercial Buffer Tube Kit Reciever Extension, Buffer, Spring, Plate and Castle Nut A.5.10.2280
9-60417
$41.76
IN STOCK at Warehouses
3,9
AR-15 Buffer Tube Receiver Extension Kit Mil-Spec GUNTEC USA
ARR-2510
$39.97
IN STOCK at Warehouse
1
AR-15 Buffer Tube Receiver Extension Kit Commercial GUNTEC USA
ARR-2509
$39.97
IN STOCK at Warehouse
1
LBE Unlimited AR-15 Buffer Tube Kit Commercial-Spec Aluminum Black Anodized CBUFKit
2-LBCBUFKIT
$38.72
IN STOCK at Warehouses
2,1
LBE Unlimited AR-15 Buffer Tube Kit Mil-Spec Aluminum Black Anodized MBUFKIT
2-LBMILBUFKT
$43.10
IN STOCK at Warehouses
2,1
AIM Sports AR15 Combo Wrench Steel
77207
$14.03
IN STOCK at Warehouse
4
AR-15 Steel Stock Wrench
ARR-1861
$3.97
IN STOCK at Warehouse
1
Advanced Technology AR-15 Steel Castle Nut Universal Receiver Extension Steel Black A.5.10.1020
8-AT-A5101020
$5.22
IN STOCK at Warehouses
4,8
LWRC Ambi Rear Receiver Sling Mount Black
2-LW200-0072A01
$49.59
IN STOCK at Warehouse
2
TAPCO AR-15 Commercial Receiver Extension Tube Kit with Buffer Tube, Castle Nut, End Plate Sling Adaptor, Buffer and Recoil Spring Aluminum Black
ARR-957
$59.97
IN STOCK at Warehouses
2,1,9
Noveske AR-15 QD Mount End Plate Steel Black REC-QDEP
2-NVREC-QDEP
$24.64
IN STOCK at Warehouse
2
ATI AR-15 Aluminum Commercial Buffer Tube Upgrade Package
12-1024295
$45.37
IN STOCK at Warehouses
12,3,4
Midwest Industries Stock Wrench for AR-15 Rifles Black MI-ESW
7-MIESW
$5.46
IN STOCK at Warehouse
7
TAPCO AR-15 Commercial Receiver Extension Build Kit Aluminum Black ZAR09108
9-77449
$48.99
IN STOCK at Warehouses
2,1,9
TAPCO AR-15 Commercial Receiver Extension Build Kit Aluminum Black ZAR09108
2-TINZAR09108
$43.14
IN STOCK at Warehouses
2,1,9
TAPCO AR-15 Receiver Extension Tube Kit Commercial  ZAR09108
3-1031138
$53.81
IN STOCK at Warehouse
3
TAPCO AR-15 Armorer's Tool Steel Olive Drab TOOL0905
2-TINTOOL0905
$34.17
IN STOCK at Warehouses
2,9
TAPCO AR-15 Armorer's Tool Steel Olive Drab TOOL0905
9-77444
$40.49
IN STOCK at Warehouses
2,9
AR-15 Mil-Spec Six Position Receiver Extension Kit LBE Unlimited
ARR-782
$49.97
IN STOCK at Warehouses
2,1
AR-15 Mil-Spec Complete Stock Set LBE Unlimited
2-LBMILSTKKT
$60.61
IN STOCK at Warehouses
2,1
AR-15 Mil-Spec Complete Stock Set LBE Unlimited
ARR-783
$69.97
IN STOCK at Warehouses
2,1
TAPCO AR-15 CAR and M4 Stock Wrench Steel with Rubber Coated Handle TOOL904
2-TINTOOL904
$7.94
IN STOCK at Warehouses
2,4,6,7,8
TAPCO AR-15 CAR and M4 Stock Wrench Steel with Rubber Coated Handle TOOL904
6-1024271
$12.40
IN STOCK at Warehouses
2,4,6,7,8
TAPCO AR-15 CAR and M4 Stock Wrench Steel with Rubber Coated Handle TOOL904
7-TOOL0904
$8.99
IN STOCK at Warehouses
2,4,6,7,8
TAPCO AR-15 CAR and M4 Stock Wrench Steel with Rubber Coated Handle TOOL904
8-TAPCO-TOOL0904
$8.99
IN STOCK at Warehouses
2,4,6,7,8
TAPCO AR-15 CAR and M4 Stock Wrench Steel with Rubber Coated Handle TOOL904
89977
$8.99
IN STOCK at Warehouses
2,4,6,7,8
ATI AR-15 Hybrid Commercial Buffer Tube Assembly
3-1024287
$61.90
IN STOCK at Warehouses
3,9
TAPCO AR-15 Mil-Spec Complete Receiver Extension Kit Aluminum Black ZAR09106
2-TINZAR09106
$45.56
IN STOCK at Warehouses
2,4
TAPCO AR-15 Mil-Spec Complete Receiver Extension Kit Aluminum Black ZAR09106
81929
$53.99
IN STOCK at Warehouses
2,4
Commercial Six Position Receiver Extension Kit LBE Unlimited
ARR-765
$49.97
IN STOCK at Warehouses
2,1
CMMG Inc. AR-15 Receiver Extension and Stock Complete Kit Carbine Length Black 55CA634
7-55CA634
$81.42
IN STOCK at Warehouse
7
NcSTAR AR-15 Armorer's Barrel Wrench Generation 2 Steel Black TARW2
9-183522
$29.99
IN STOCK at Warehouses
10,11,12,3,9
NcSTAR AR-15 Armorer's Barrel Wrench Generation 2 Steel Black TARW2
10-0931726
$44.99
IN STOCK at Warehouses
10,11,12,3,9
NcSTAR AR-15 Armorer's Barrel Wrench Generation 2 Steel Black TARW2
11-0931726
$44.99
IN STOCK at Warehouses
10,11,12,3,9
NcSTAR AR-15 Armorer's Barrel Wrench Generation 2 Steel Black TARW2
12-0931726
$44.99
IN STOCK at Warehouses
10,11,12,3,9
NcSTAR AR-15 Armorer's Barrel Wrench Generation 2 Steel Black TARW2
3-0931726
$44.99
IN STOCK at Warehouses
10,11,12,3,9
Slide Fire Solutions AR-15 A2 Stock Conversion Kit Mil-Spec 11-0100
7-110100
$49.95
IN STOCK at Warehouse
7
ATI AR-15 Stock and Buffer Tube Set Black with Six Position Collapsible Stock and Commercial Buffer Tube A2101060
61790
$58.05
IN STOCK at Warehouses
12,2,3,4
ATI AR-15 Stock and Buffer Tube Set Black with Six Position Collapsible Stock and Commercial Buffer Tube A2101060
12-1024278
$72.97
IN STOCK at Warehouses
12,2,3,4
ATI AR-15 Stock and Buffer Tube Set Black with Six Position Collapsible Stock and Commercial Buffer Tube A2101060
3-1024278
$72.97
IN STOCK at Warehouses
12,2,3,4
ATI AR-15 Stock and Buffer Tube Set Black with Six Position Collapsible Stock and Commercial Buffer Tube A2101060
2-ADVA2101060
$61.84
IN STOCK at Warehouses
12,2,3,4
Advanced Technology AR-15 Mil-Spec Complete Buffer Tube Package Black A.5.10.2240
9-60089
$41.76
IN STOCK at Warehouses
2,3,6,9
Advanced Technology AR-15 Commerical Complete Buffer Tube Package Black A.5.10.1050
61791
$45.15
IN STOCK at Warehouses
2,3,4,6,9
Advanced Technology AR-15 Mil-Spec Complete Buffer Tube Package Black A.5.10.2240
2-ADVA5102240
$48.09
IN STOCK at Warehouses
2,3,6,9
TAPCO INTRAFUSE AR-15 Stock Set Commercial Polymer Black ZSTK09161BLK
3-1031153
$134.99
IN STOCK at Warehouses
3,9
TAPCO INTRAFUSE AR-15 Stock Set Commercial Polymer Black ZSTK09161BLK
9-107340
$134.99
IN STOCK at Warehouses
3,9
Advanced Technology AR-15 Commerical Complete Buffer Tube Package Black A.5.10.1050
6-1030485
$61.90
IN STOCK at Warehouses
2,3,4,6,9
Advanced Technology AR-15 Commerical Complete Buffer Tube Package Black A.5.10.1050
3-1030485
$61.90
IN STOCK at Warehouses
2,3,4,6,9
Advanced Technology AR-15 Commerical Complete Buffer Tube Package Black A.5.10.1050
9-60086
$41.76
IN STOCK at Warehouses
2,3,4,6,9
Advanced Technology AR-15 Commerical Complete Buffer Tube Package Black A.5.10.1050
2-ADVA5101050
$48.09
IN STOCK at Warehouses
2,3,4,6,9
Advanced Technology AR-15 Mil-Spec Complete Buffer Tube Package Black A.5.10.2240
3-1030479
$61.90
IN STOCK at Warehouses
2,3,6,9
Advanced Technology AR-15 Mil-Spec Complete Buffer Tube Package Black A.5.10.2240
6-1030479
$61.90
IN STOCK at Warehouses
2,3,6,9
LaRue Tactical AR-15 RAT Mil-Spec Stock Kit with Tube, Buffer, Spring and Castle Nut Black LT800-K15-BLK
2-LT800-K15-BLK
$186.63
IN STOCK at Warehouse
2
LaRue Tactical AR-15 RAT Mil-Spec Stock Kit with Tube, Buffer, Spring and Castle Nut Flat Dark Earth LT800-K15-FDE
2-LT800-K15-FDE
$186.63
IN STOCK at Warehouse
2
LaRue Tactical AR-15 RAT Mil-Spec Stock Kit with Tube, Buffer, Spring and Castle Nut Urban Dark Earth LT800-K15-UDE
2-LT800-K15-UDE
$186.63
IN STOCK at Warehouse
2
LaRue Tactical AR-15 RAT Mil-Spec Stock Kit with Tube, Buffer, Spring and Castle Nut Foliage LT801-FOL
2-LT801-FOL
$186.63
IN STOCK at Warehouse
2
LaRue Tactical AR-15 RAT Mil-Spec Stock Kit with Tube, Buffer, Spring and Castle Nut Urban Dark Earth LT801-UDE
2-LT801-UDE
$186.63
IN STOCK at Warehouse
2
LaRue Tactical AR-15 RAT Mil-Spec Stock Kit with Tube, Buffer, Spring and Castle Nut Flat Dark Earth LT800-FDE
2-LT801-FDE
$186.63
IN STOCK at Warehouse
2
LaRue Tactical AR-15 RAT Mil-Spec Stock Kit with Tube, Buffer, Spring and Castle Nut OD Green LT800-ODG
2-LT801-ODG
$186.63
IN STOCK at Warehouse
2
Magpul Industries MOE Magpul Original Equipment Fixed Stock Flat Dark Earth Non Mil-Spec AR Rifles MAG481-FDE
6-1030518
$49.95
IN STOCK at Warehouses
10,11,12,2,3,6
Magpul Industries MOE Magpul Original Equipment Fixed Stock Flat Dark Earth Non Mil-Spec AR Rifles MAG481-FDE
12-1030518
$49.95
IN STOCK at Warehouses
10,11,12,2,3,6
Magpul Industries MOE Magpul Original Equipment Fixed Stock Flat Dark Earth Non Mil-Spec AR Rifles MAG481-FDE
10-1030518
$49.95
IN STOCK at Warehouses
10,11,12,2,3,6
Magpul Industries MOE Magpul Original Equipment Fixed Stock Flat Dark Earth Non Mil-Spec AR Rifles MAG481-FDE
11-1030518
$49.95
IN STOCK at Warehouses
10,11,12,2,3,6
Magpul Industries MOE Magpul Original Equipment Fixed Stock Flat Dark Earth Non Mil-Spec AR Rifles MAG481-FDE
3-1030518
$49.95
IN STOCK at Warehouses
10,11,12,2,3,6
Magpul Industries MOE Magpul Original Equipment Fixed Stock Flat Dark Earth Non Mil-Spec AR Rifles MAG481-FDE
2-MPIMAG481FDE
$47.45
IN STOCK at Warehouses
10,11,12,2,3,6
FosTech Outdoors DefendAR-15 Bump Fire Rifle Stock Complete Assembly Right Hand Aluminum Black Finish D-15-RH-F
3-1031017
$480.65
IN STOCK at Warehouse
3
ATI AR-15 Strikeforce Stock Package with Scorpion Recoil System and Aluminum Commercial Buffer Tube Assembly Destroyer Gray
7-A2401053
$84.07
IN STOCK at Warehouse
7
Advanced Technology AR-15 Strike Force Stock Package Hybrid Buffer Tube/Adjustable Stock/Grip Polymer Black A.2.10.1131
9-107241
$71.59
IN STOCK at Warehouse
9
VLTOR EMOD AR-15 Basic EMOD Combo Stock Assembly Complete Kit Mil-Spec Black AEBKMB
7-AEBKMB
$166.36
IN STOCK at Warehouse
7
ERGO AR-15 F93 PRO Stock 8 Position Collapsible Stock with Fixed Cheek Piece and Buffer Tube Polymer Black 4925-BK
76676
$136.92
IN STOCK at Warehouses
2,4,8,9
ERGO AR-15 F93 PRO Stock 8 Position Collapsible Stock with Fixed Cheek Piece and Buffer Tube Polymer Black 4925-BK
2-EG4925BK
$139.64
IN STOCK at Warehouses
2,4,8,9
ERGO AR-15 F93 PRO Stock 8 Position Collapsible Stock with Fixed Cheek Piece and Buffer Tube Polymer Black 4925-BK
9-105479
$154.27
IN STOCK at Warehouses
2,4,8,9
 
 
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