Whether you're upgrading performance or starting a new build, each part is vetted for reliability and compliance.
BCM GUNFIGHTER LWR GRP RMS SPMD1 FDE
Bravo Company
BCM
LRG-RMS-STK-MOD-1-SPMD-FDE
$599.00
Ships from Warehouse
BCM GUNFIGHTER LWR GRP RMS SPMD1 BLK
Bravo Company
BCM
LRG-RMS-STK-MOD-1-SPMD-BLK
$599.00
Ships from Warehouse
Heckler & Koch MR762 A4 Upper Receiver, 308 Winchester/762NATO, 13 Barrel, Threaded 5/8X24, M-LOK Handguard, Anodized Finish, Black, Adjustable Gas Block, Includes Bolt Carrier Group, Buffer Weight, and Buffer Spring 51001919
Heckler & Koch
MR762 A4 Upper Receiver
51001919
$2680.68
Ships from Warehouse
DPMS DP51655155946 KITTY KAT 556 7.5 C7 UPPER
Dpms
DPMS KITTY KAT 7.5IN C7 FSB COMPLETE UPPERS 5
DP51655155946
$502.40
Ships from Warehouse
Wilson Combat TRLOWERKB15 Lower Receiver Kit Rifle Universal
Wilson Combat
TR-LOWERK-B15
TRLOWERKB15
$57.95
Ships from Warehouse
FAXON URSSB556-SS-MB ARAK21 16 556 COMP UPPER MB
Faxon Firearms
URSSB556SSMB
$1083.12
Ships from Warehouse
ZAFFIRI 17.5.UPK UPPER PARTS KIT GLK 17/34 G5
Zaffiri Precision
UPK
17.5.UPK
$89.99
Ships from Warehouse
Wraithworks Billet Slick Side AR15 Upper Receiver Black No Forward Assist or Brass Deflector
WRAITHWORKS
WARP15-UP-A
$72.29
In-Store Today
Primary Weapons Systems MK1 Mod 2-M, Complete Lower Receiver, Semi Automatic, Multi Caliber, B5 Bravo Stock, Hard Coat Anodized, Kodiak Brown, 30 Rounds 2M100RM112F
Primary Weapons Systems
MK1
2M100RM112F
$597.99
Ships from Warehouse
M4A1 RIII URG 5.56MM 14.5 FDE 23-004-01097-011
Daniel Defense
DD4 RIII URG
23-004-01097-011
$1514.43
Ships from Warehouse
Larue Tactical LT007 Stripped Upper Receiver Aluminum for AR-15
LaRue Tactical
Stripped
LT007
$224.97
Ships from Warehouse
Timber Creek Outdoors GLPKBL Greyman Lower Parts Kit AR-Platform Black
Timber Creek Outdoors
Greyman
GLPKBL
$95.99
Ships from Warehouse
Timber Creek Outdoors TCOEKR Enforcer Complete Build Kit Red Anodized for AR-15
Timber Creek Outdoors
Enforcer
TCOEKR
$599.99
Ships from Warehouse
Timber Creek Outdoors TCOEKB Enforcer Complete Build Kit Blue Anodized for AR-15
Timber Creek Outdoors
Enforcer
TCOEKB
$599.99
Ships from Warehouse
Tapco TAP22037 Lower Parts Kit AR-15 Platform Black
Tapco
MULTI
TAP22037
$44.53
Ships from Warehouse
Radian Weapons R0430 Model 1 Builder Kit 10 Magpul M-LOK Handguard
Radians
Builder Kit
R0430
$1254.95
Ships from Warehouse
Radian Weapons R0427 Model 1 Builder Kit 10 Magpul M-LOK Handguard
Radians
Builder Kit
R0427
$1254.95
Ships from Warehouse
Heckler & Koch MR556 A4 Upper Receiver, 223 Remington/556NATO, 16.5 Barrel, Threaded 1/2X28, M-LOK Handguard, Anodized Finish, Black, Fits AR-15 Lower Receivers, Includes Bolt Carrier Group, Charging Handle, Buffer Weight and Buffer Spring 51000384
Heckler & Koch
51000384
$4070.94
Ships from Warehouse
TacFire BU9MM4 Pistol Upper Assembly 9mm Luger 4 Black Nitride Barrel 7075-T6 Aluminum Black Anodized Receiver M-LOK Handguard for AR-Platform
Tacfire
Pistol Upper Assembly
BU9MM4
$257.29
Ships from Warehouse
TacFire BU-556-7 Pistol Upper Assembly 5.56x45mm NATO Caliber with 7 Black Nitride Barrel, Black Anodized 7075-T6 Aluminum Receiver & M-LOK Handguard for AR-Platform Includes Bolt Carrier Group
Tacfire
Pistol Upper Assembly
BU5567
$276.43
Ships from Warehouse
Information