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M4 Lower Receiver

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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.

Bushmaster M4 Semi-Automatic Lower .223 Rem/5.56 NATO 14.5  Black Telestock M4 Collapsible Stock 92950
2-BM92950
$317.62
IN STOCK at Warehouses
2,8
Mako Group AR-15 M16 M4 Noise and Movement Eliminator Set of 25
56350
$26.40
IN STOCK at Warehouse
4
DPMS Complete Lower assembly, Semi-automatic,  M4 Stock, Black
6-0129047
$238.61
IN STOCK at Warehouses
2,6
DPMS Complete Lower assembly, Semi-automatic,  M4 Stock, Black
2-DPLR05AP4
$238.62
IN STOCK at Warehouses
2,6
USAUTO Special Forces AR-15 Complete Lower Receiver Black 6 Position Stock USM456SF
2-UAUSM456SF
$333.49
IN STOCK at Warehouse
2
ERGO Never Quit Magwell Grip Coyote Brown 4965-CB
9-105495
$17.50
IN STOCK at Warehouse
9
CMMG AR-10 Mk3 Complete Lower Receiver .308 Winchester with M4 Buttstock Aluminum Black 38CA332
8-CMMG-38CA332
$460.20
IN STOCK at Warehouses
10,11,12,2,3,6,8
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
Black Rain Billet Stripped AR-15 Receiver 7075 Aluminum Beveled Magwell Winter Trigger Guard  Black
2-BRO-MLR
$214.80
IN STOCK at Warehouses
2,8,9
Black Rain Billet Stripped AR-15 Receiver 7075 Aluminum Beveled Magwell Winter Trigger Guard  Black MLR
9-91214
$214.80
IN STOCK at Warehouses
2,8,9
Black Rain Billet Stripped AR-15 Receiver 7075 Aluminum Beveled Magwell Winter Trigger Guard  Black MLR
8-BR-MLR
$175.14
IN STOCK at Warehouses
2,8,9
DSA ZM4 Semi Auto Rifle 5.56 NATO 16  M4 Barrel 30 Rounds 6 Position Stock Black Nitride Finish ZM4RCR16M4-A
2-DSAZM4RCR16M4-A
$766.02
IN STOCK at Warehouse
2
American Tactical Imports M4-22 AR-15 Complete Upper Assembly .22 LR 28 Round Magazine Flat Top M4 Profile Barrel Black 8ATIM42228
3-0409319
$308.52
IN STOCK at Warehouse
3
Aim Sports AR15/ M4 Armorer's Tool Kit Black ATARAK
88582
$46.45
IN STOCK at Warehouse
4
Black Dawn AR-15 Matched Stripped Upper and Lower Receiver Aluminum Green Zombie Camo BDR-ULSZG
9-100917
$384.10
IN STOCK at Warehouse
9
Black Dawn AR-15 Matched Stripped Upper and Lower Receiver Aluminum Gray Zombie Camo BDR-ULSZ
9-100916
$384.10
IN STOCK at Warehouse
9
Olympic Arms K3BM4A3 M4 AR-15 Carbine 5.56 NATO 30 Rounds 16  M4 Barrel A3 Upper with Removable Carry Handle and Rear Sight Black M4 Buttstock
38640
$901.99
IN STOCK at Warehouse
4
ATI Omni Hybrid AR-15 Polymer Complete Lower Receiver with Collapsible Stock Black ATIGLOW201
7-GATIGLOW201
$139.14
IN STOCK at Warehouse
7
JSE AR-15 5.56 Complete 16  M4 Upper With Adams Arms Gas Piston 1:9  Twist Civilian M4 Barrel
ARR-631
$719.97
IN STOCK at Warehouse
1
DS Arms ZM4 Flat Top Carbine Semi Auto Rifle 5.56 NATO 16  Barrel 30 Rounds Collapsible Stock Black Finish ZM4RCR16M4-A
8-DSA-ZM4RCR16M4A
$677.94
IN STOCK at Warehouse
8
DS Arms ZM4 Flat Top Carbine Semi Auto Rifle 5.56 NATO 16  Barrel 30 Rounds Collapsible Stock Black Finish ZM4RCR16M4CL-A
2-DSAZM4RCR16M4CL-A
$774.77
IN STOCK at Warehouse
2
Olympic Arms K3B-M4 Semi Auto Rifle .223 Rem/5.56 NATO 16  Barrel 30 Rounds Fixed Carry Handle Collapsible Stock Black Finish K3BM4
38638
$825.09
IN STOCK at Warehouse
4
Spikes Tactical ST-15 LE Carbine AR-15 Semi Auto Rifle .223 Rem/5.56mm NATO 16  Barrel M4 Polymer Hand Guards A2 Front Sight Base M4 Stock Black STR5025-M4S
2-SPKSTR5025-M4S
$843.60
IN STOCK at Warehouse
2
CMMG Mk4LEM Semi Automatic Rifle 5.56 NATO 16  Barrel 30 Rounds M4 Collapsible Buttstock Black Finish UN55AC749
8-CMMG-55AC749
$822.58
IN STOCK at Warehouse
8
Colt 6920 AR-15 Semi Auto Rifle 5.56 NATO 16  M4 Barrel 30 Rounds M4 Stock Black LE6920
07000
$990.00
IN STOCK at Warehouses
2,4,7,8
Colt 6920 AR-15 Semi Auto Rifle 5.56 NATO 16  M4 Barrel 30 Rounds M4 Stock Black LE6920
2-CTLE6920
$1,076.90
IN STOCK at Warehouses
2,4,7,8
Colt 6920 AR-15 Semi Auto Rifle 5.56 NATO 16  M4 Barrel 30 Rounds M4 Stock Black LE6920
7-GLE6920
$1,076.90
IN STOCK at Warehouses
2,4,7,8
Colt 6920 AR-15 Semi Auto Rifle 5.56 NATO 16  M4 Barrel 30 Rounds M4 Stock Black LE6920
8-CLT-LE6920
$1,076.90
IN STOCK at Warehouses
2,4,7,8
CORE15 TAC M4 Piston Semi Auto Rifle 5.56 NATO/.223 Rem 16  Stainless Barrel 30 Rounds Magpul Furniture Quad Rail Flip Up Sights Black Finish 6422
2-CORE1643
$1,409.69
IN STOCK at Warehouses
2,3,4,6,8
CORE15 TAC M4 Piston Semi Auto Rifle 5.56 NATO/.223 Rem 16  Stainless Barrel 30 Rounds Magpul Furniture Quad Rail Flip Up Sights Black Finish 6422
3-0136192
$1,413.50
IN STOCK at Warehouses
2,3,4,6,8
CORE15 TAC M4 Piston Semi Auto Rifle 5.56 NATO/.223 Rem 16  Stainless Barrel 30 Rounds Magpul Furniture Quad Rail Flip Up Sights Black Finish 6422
6-0136192
$1,413.50
IN STOCK at Warehouses
2,3,4,6,8
CORE15 TAC M4 Piston Semi Auto Rifle 5.56 NATO/.223 Rem 16  Stainless Barrel 30 Rounds Magpul Furniture Quad Rail Flip Up Sights Black Finish 6422
79560
$1,285.90
IN STOCK at Warehouses
2,3,4,6,8
CORE15 TAC M4 Piston Semi Auto Rifle 5.56 NATO/.223 Rem 16  Stainless Barrel 30 Rounds Magpul Furniture Quad Rail Flip Up Sights Black Finish 6422
8-C15-1643
$1,422.83
IN STOCK at Warehouses
2,3,4,6,8
Windham Weaponry AR-15 Complete Upper Assembly .223 Rem/5.56 NATO 16  M4 Barrel Carbine Length Gas System Fixed Front Sight Removable Carry Handle UR16M4A4B
8-WW-UR16M4A4B
$573.16
IN STOCK at Warehouses
4,8
Troy Industries M7 5.56 Upper Receiver 7.5  Barrel Tritium M4 Folding Front Sight Folding Rear Sight Flat Dark Earth SM7A-CUK-00FT-00
9-71879
$1,227.44
IN STOCK at Warehouse
9
ERGO Grip ERGO 2 AR-15 Grip Ambidextrous SUREGRIP Rubber Overmolded Polymer Dark Earth 4010-DE
9-105365
$21.01
IN STOCK at Warehouses
2,9
ERGO Grip ERGO 2 AR-15 Grip Ambidextrous SUREGRIP Rubber Overmolded Polymer Olive Drab 4010-OD
9-105366
$21.01
IN STOCK at Warehouses
2,9
DS Arms ZM4 Flat Top Carbine Semi Auto Rifle 5.56 NATO 16  Barrel 30 Rounds Collapsible Stock Black Finish ZM4RCR16M4-A
2-DSADSZM4CV1R
$734.81
IN STOCK at Warehouse
2
Windham Weaponry MPC AR-15 Semi Auto Rifle .223 Rem/5.56mm NATO 16  M4 Profile Barrel Carbine Length Gas System Fixed Front Sight No Carry Handle Rear Flip-up Sight 30 Rounds Black R16M4LHRFT
2-WWR16M4LHRFT
$826.47
IN STOCK at Warehouses
10,11,2,3,4,6,7,8
Windham Weaponry MPC AR-15 Semi Auto Rifle .223 Rem/5.56mm NATO 16  M4 Profile Barrel Carbine Length Gas System Fixed Front Sight No Carry Handle Rear Flip-up Sight 30 Rounds Black R16M4LHRFT
8-WW-R16M4LHRFT
$814.96
IN STOCK at Warehouses
10,11,2,3,4,6,7,8
Spike's Tactical AR-15 Semi Automatic Complete Lower Receiver Mil Spec 6 Position Stock Color Fill Black STLC200
2-SPKSTLC200
$274.51
IN STOCK at Warehouse
2
CORE15 MOE M4 Semi Automatic Rifle .300 AAC Blackout 16  Barrel 30 Rounds OD Green Magpul MOE Stock and Grip with Black Receiver and Barrel 100597
2-CORE100597
$1,038.83
IN STOCK at Warehouse
2
Windham Weaponry AR-15 Complete Upper Assembly .223 Rem/5.56 NATO 16  M4 Barrel Carbine Length Gas System Fixed Front Sight Removable Carry Handle UR16M4A4B
84212
$575.00
IN STOCK at Warehouses
4,8
Bushmaster Optics Ready (O.R.C.) Semi Automatic Carbine .223 Remington/5.56x45mm NATO 16  M4 Barrel One 30 Round Magazine Black M4 Collapsible Buttstock Black Anodized Finish
7-GBCWVMF16M4ORC
$821.34
IN STOCK at Warehouses
10,11,2,3,4,6,7,8
Windham Weaponry MPC AR-15 Semi Auto Rifle .223 Rem/5.56mm NATO 16  M4 Profile Barrel Carbine Length Gas System Fixed Front Sight No Carry Handle Rear Flip-up Sight 30 Rounds Black R16M4LHRFT
7-G4383
$799.14
IN STOCK at Warehouses
10,11,2,3,4,6,7,8
Windham Weaponry MPC AR-15 Semi Auto Rifle .223 Rem/5.56mm NATO 16  M4 Profile Barrel Carbine Length Gas System Fixed Front Sight No Carry Handle Rear Flip-up Sight 30 Rounds Black R16M4LHRFT
10-0137271
$835.55
IN STOCK at Warehouses
10,11,2,3,4,6,7,8
Windham Weaponry MPC AR-15 Semi Auto Rifle .223 Rem/5.56mm NATO 16  M4 Profile Barrel Carbine Length Gas System Fixed Front Sight No Carry Handle Rear Flip-up Sight 30 Rounds Black R16M4LHRFT
11-0137271
$835.55
IN STOCK at Warehouses
10,11,2,3,4,6,7,8
Windham Weaponry MPC AR-15 Semi Auto Rifle .223 Rem/5.56mm NATO 16  M4 Profile Barrel Carbine Length Gas System Fixed Front Sight No Carry Handle Rear Flip-up Sight 30 Rounds Black R16M4LHRFT
6-0137271
$835.55
IN STOCK at Warehouses
10,11,2,3,4,6,7,8
Windham Weaponry MPC AR-15 Semi Auto Rifle .223 Rem/5.56mm NATO 16  M4 Profile Barrel Carbine Length Gas System Fixed Front Sight No Carry Handle Rear Flip-up Sight 30 Rounds Black R16M4LHRFT
3-0137271
$835.55
IN STOCK at Warehouses
10,11,2,3,4,6,7,8
Windham Weaponry MPC AR-15 Semi Auto Rifle .223 Rem/5.56mm NATO 16  M4 Profile Barrel Carbine Length Gas System Fixed Front Sight No Carry Handle Rear Flip-up Sight 30 Rounds Black R16M4LHRFT
84209
$800.37
IN STOCK at Warehouses
10,11,2,3,4,6,7,8
Daniel Defense M4A1 Semi Auto Carbine 5.56 NATO 14.5  Barrel 30 Rounds RIS II Overmolded Stock and Grip 02-088-06027-011
3-0138578
$1,819.00
IN STOCK at Warehouse
3
ATI OMNI Hybrid Complete AR-15 Polymer and Steel Lower Receiver M4 Stock Black ATIGLOW201
3-0138437
$139.14
IN STOCK at Warehouses
3,8
ATI OMNI Hybrid Complete AR-15 Polymer and Steel Lower Receiver M4 Stock Black ATIGLOW201
8-ATI-GLOW201
$139.14
IN STOCK at Warehouses
3,8
Midwest Industries AR-15 Complete Forged Upper Receiver Aluminum Black MI-FCU
2-MWMI-FCU
$107.20
IN STOCK at Warehouse
2
Bushmaster MOE M4 Semi Auto Carbine .223 Remington/5.56x45mm NATO 16  M4 Barrel 30 Rounds Magpul MOE Stock Black Finish 90291
10-0130987
$1,071.79
IN STOCK at Warehouses
10,11,12,2,3,4,6,7,8
Bushmaster MOE M4 Semi Auto Carbine .223 Remington/5.56x45mm NATO 16  M4 Barrel 30 Rounds Magpul MOE Stock Black Finish 90291
11-0130987
$1,071.79
IN STOCK at Warehouses
10,11,12,2,3,4,6,7,8
Bushmaster MOE M4 Semi Auto Carbine .223 Remington/5.56x45mm NATO 16  M4 Barrel 30 Rounds Magpul MOE Stock Black Finish 90291
12-0130987
$1,071.79
IN STOCK at Warehouses
10,11,12,2,3,4,6,7,8
Bushmaster MOE M4 Semi Auto Carbine .223 Remington/5.56x45mm NATO 16  M4 Barrel 30 Rounds Magpul MOE Stock Black Finish 90291
2-BM90291
$943.49
IN STOCK at Warehouses
10,11,12,2,3,4,6,7,8
Bushmaster MOE M4 Semi Auto Carbine .223 Remington/5.56x45mm NATO 16  M4 Barrel 30 Rounds Magpul MOE Stock Black Finish 90291
63788
$987.90
IN STOCK at Warehouses
10,11,12,2,3,4,6,7,8
Bushmaster MOE M4 Semi Auto Carbine .223 Remington/5.56x45mm NATO 16  M4 Barrel 30 Rounds Magpul MOE Stock Black Finish 90291
7-G90291
$1,033.95
IN STOCK at Warehouses
10,11,12,2,3,4,6,7,8
Bushmaster MOE M4 Semi Auto Carbine .223 Remington/5.56x45mm NATO 16  M4 Barrel 30 Rounds Magpul MOE Stock Black Finish 90291
8-BF-90291
$1,045.52
IN STOCK at Warehouses
10,11,12,2,3,4,6,7,8
Bushmaster MOE M4 Semi Automatic Carbine .223 Remington/5.56x45mm NATO 16  M4 Barrel 30 Rounds Flat Dark Earth Magpul MOE Buttstock Black Anodized Finish
8-BF-90687
$1,045.52
IN STOCK at Warehouses
10,11,12,2,3,4,6,8
Bushmaster M4A3  Post Ban  Semi Automatic Carbine .223 Remington/5.56x45mm NATO 14.5  M4 Barrel with Izzy Muzzle Brake 10 Rounds Black M4 Fixed Position Buttstock Black Anodized Finish
2-BM90591
$972.35
IN STOCK at Warehouses
10,12,2,3,4,6,7
Bushmaster M4A3  Post Ban  Semi Automatic Carbine .223 Remington/5.56x45mm NATO 14.5  M4 Barrel with Izzy Muzzle Brake 10 Rounds Black M4 Fixed Position Buttstock Black Anodized Finish
3-0121869
$999.92
IN STOCK at Warehouses
10,12,2,3,4,6,7
Bushmaster M4A3  Post Ban  Semi Automatic Carbine .223 Remington/5.56x45mm NATO 14.5  M4 Barrel with Izzy Muzzle Brake 10 Rounds Black M4 Fixed Position Buttstock Black Anodized Finish
10-0121869
$999.92
IN STOCK at Warehouses
10,12,2,3,4,6,7
Bushmaster M4A3  Post Ban  Semi Automatic Carbine .223 Remington/5.56x45mm NATO 14.5  M4 Barrel with Izzy Muzzle Brake 10 Rounds Black M4 Fixed Position Buttstock Black Anodized Finish
29488
$971.83
IN STOCK at Warehouses
10,12,2,3,4,6,7
Bushmaster M4A3  Post Ban  Semi Automatic Carbine .223 Remington/5.56x45mm NATO 14.5  M4 Barrel with Izzy Muzzle Brake 10 Rounds Black M4 Fixed Position Buttstock Black Anodized Finish
6-0121869
$999.92
IN STOCK at Warehouses
10,12,2,3,4,6,7
Bushmaster M4A3  Post Ban  Semi Automatic Carbine .223 Remington/5.56x45mm NATO 14.5  M4 Barrel with Izzy Muzzle Brake 10 Rounds Black M4 Fixed Position Buttstock Black Anodized Finish
7-GPCWA3X14M
$976.74
IN STOCK at Warehouses
10,12,2,3,4,6,7
Olympic Arms K16-SST AR-15 Rifle .223 Remington 30 Rounds 16  Stainless Steel Bull Barrel A3 Flat Top Upper Railed Gas Block Free Float Quad Rail Handguard M4 Buttstock
69425
$721.50
IN STOCK at Warehouse
4
Chiappa M4-22 Conversion Complete Upper Assembly .22 Long Rifle 16  M4 Barrel 28 Rounds Flat Top Black M4-22LR UPPER
2-CHPM4-22LRUPPER
$283.82
IN STOCK at Warehouses
10,11,12,2,3,4,6,7
Chiappa M4-22 Conversion Complete Upper Assembly .22 Long Rifle 16  M4 Barrel 28 Rounds Flat Top Black M4-22LR UPPER
6-0409291
$302.80
IN STOCK at Warehouses
10,11,12,2,3,4,6,7
Chiappa M4-22 Conversion Complete Upper Assembly .22 Long Rifle 16  M4 Barrel 28 Rounds Flat Top Black M4-22LR UPPER
10-0409291
$302.80
IN STOCK at Warehouses
10,11,12,2,3,4,6,7
Chiappa M4-22 Conversion Complete Upper Assembly .22 Long Rifle 16  M4 Barrel 28 Rounds Flat Top Black M4-22LR UPPER
11-0409291
$302.80
IN STOCK at Warehouses
10,11,12,2,3,4,6,7
Chiappa M4-22 Conversion Complete Upper Assembly .22 Long Rifle 16  M4 Barrel 28 Rounds Flat Top Black M4-22LR UPPER
12-0409291
$302.80
IN STOCK at Warehouses
10,11,12,2,3,4,6,7
Chiappa M4-22 Conversion Complete Upper Assembly .22 Long Rifle 16  M4 Barrel 28 Rounds Flat Top Black M4-22LR UPPER
3-0409291
$302.80
IN STOCK at Warehouses
10,11,12,2,3,4,6,7
Chiappa M4-22 Conversion Complete Upper Assembly .22 Long Rifle 16  M4 Barrel 28 Rounds Flat Top Black M4-22LR UPPER
7-M422UPPER
$295.83
IN STOCK at Warehouses
10,11,12,2,3,4,6,7
Bushmaster AR-15 M4A2 Semi Auto Carbine .223 Rem/5.56 NATO 16  Barrel 30 Round Telestock M4 Bayonet Lug A2 Birdcage Black Bushmaster 90216
8-BF-90216
$972.90
IN STOCK at Warehouses
10,11,2,3,4,6,7,8
Bushmaster M4A3 Semi Automatic Carbine .223 Remington/5.56x45mm NATO 11.5  Barrel w/5.5  Flash Suppressor 30 Rounds Black M4 Collapsible Buttstock Black Anodized Finish
10-0124397
$1,039.70
IN STOCK at Warehouses
10,11,2,3,4,6,8
Bushmaster M4A3 Semi Automatic Carbine .223 Remington/5.56x45mm NATO 11.5  Barrel w/5.5  Flash Suppressor 30 Rounds Black M4 Collapsible Buttstock Black Anodized Finish
11-0124397
$1,039.70
IN STOCK at Warehouses
10,11,2,3,4,6,8
 
 
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