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
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
Great Lakes Firearms & Ammunition AR-15 Stripped Lower Receiver — Aluminum Black
Great Lakes Firearms
GL15 BLK-S
GL15 BLK-S
$99.98
In-Store Today
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
Timber Creek Outdoors GLPKU Greyman Lower Parts Kit AR-Platform Urban
Timber Creek Outdoors
Greyman
GLPKU
$95.99
Ships from Warehouse
Timber Creek Outdoors TCOEKPPA Enforcer Complete Build Kit Purple Anodized for AR-15
Timber Creek Outdoors
Enforcer
TCOEKPPA
$599.99
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
$4070.95
Ships from Warehouse
Desert Tech QTRLR15B53 Quattro-15 Multi-Caliber Black for AR-15 Includes Quad53 Magazine
Desert Tech
Quattro-15
QTRLR15B53
$329.20
Ships from Warehouse
TacFire SSRK9MM16LPK AR Build Kit Rifle 9mm Luger AR-15 Black Nitride Steel 1/2-36 tpi *Sports South Exclusive.
Tacfire
AR Build Kit
SSRK9MM16LPK
$354.21
Ships from Warehouse
TacFire SSRK300LPK AR Build Kit Rifle 300 Blackout AR Platform Black Nitride Aluminum 1/2-28 tpi *Sports South Exclusive.
Tacfire
AR Build Kit
SSRK300LPK
$354.21
Ships from Warehouse
TacFire AR Build Kit 9mm Luger 7.50 Barrel Black for AR Platform
Tacfire
AR Build Kit
SSPK9MMLPK7
$318.09
Ships from Warehouse
TacFire SSPK300LPK10 AR Build Kit Pistol 300 Blackout AR Pistol Platform Black Parkerized Steel 5/8-24 tpi*Sports South Exclusive.
Tacfire
AR Build Kit
SSPK300LPK10
$468.02
Ships from Warehouse
TacFire BU-9MM-7 Pistol Upper Assembly 9mm Luger 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
BU9MM7
$257.29
Ships from Warehouse
Information