WMD Guns Barrel, 9MM, 5.5" Barrel, Threaded 1/2X36, 1:10 Twist, Nitride Finish, Black 9mm5.5 1-10

WMD Guns Upper Receiver, 556NATO, A3/A4 with M4 Feed Ramps, NiB-X Coating, Nickel, Stripped 1-NIBXUF

Ballistic Advantage Modern Series, Distinct Rigid Pattern Profile Barrel, 8", Pistol-Length Gas System, 1:7 Twist, 5/8X24 Threads, 4150 CrMoV, QPQ Corrosion Resistant Finish, Black BABL300001M

Ballistic Advantage Performance Series Barrel, Hanson Profile, 300BLK, 8.3" Barrel, 5/8X24 Thread Pitch, Fits AR15, Bead Blasted Finish, Black, 1:7" Twist Rate, Pistol-Length Gas System, Includes Low-Profile Gas Block BABL300002F

Ballistic Advantage Modern Series, Distinct Rigid Pattern Barrel, 300 Blackout, 10.5", 1:7 Twist, 5/8X24 Threads, 4150 CrMoV, QPQ Corrosion Resistant Finish, Black BABL300008M

Wilson Combat SBR, 556NATO, 11.3", 1:7, Carbine Length, Stainless, Bead Blasted, Fits AR-15 TR-556SBRCG11RT7

Radian Weapons Upper/Handguard Set, Cerakote Finish, Olive Drab Green, Fits AR-15, Includes 14" MLOK Handguard, Radian Raptor-SD Charging Handle R0628

WMD Guns Barrel, 9MM, 7.5" Barrel, Threaded 1/2X36, 1:10 Twist, Nitride Finish, Black 9mm7.5 1-10

San Tan Tactical STT-15, Upper, 223 Remington/556NATO, Black STT-PILLAR-1

Luth-AR 24" Bull Barrel Complete Upper Assembly, 223 Remington, Black Finish, 15" Palm Handguard Keymod, Complete Barrel Assembly w/BCG, Fits AR-15 FTBL-B24

Luth-AR Stripped NC15 Forged Upper Receiver, Manufactured from 7075-T6 Aluminum, Hard-Coat Anodized, Features Upper Picatinny Rail for Mounting Optics and Accessories FTT-EA

Luth-AR Upper, Black, 1913 Rail for Mounting Optics and Accessories, Forged, Flat Top, Comes with Charging Handle, Forward Assist, and Dust Cover FTT-EA1

Luth-AR A2 Upper Receiver, Upper, 223 Remington/556NATO, Black, AR15, Anodized UR-A2-A

Luth-AR A2 Upper Receiver, Stripped Upper Receiver, 223 Remington/556NATO, Fits AR-15. Anodized Finish, Black UR-A2-S

Ballistic Advantage Modern Series Barrel, Distinct Rigit Pattern Profile, 300 BLK, 10" Barrel, 5/8X24 Thread Pitch, Fits AR15, QPQ Corrosion Resistant Finish, Black, 1:7" Twist Rate, Pistol-Length Gas System BABL300006M

Noveske Chainsaw, Complete Upper Receiver, 223 Remington/556NATO, 16" Barrel, A2 Flash Hider, MLOK Handguard, Radian Raptor LT Charging Handle, Anodized Finish, Black, Fits AR-15 03000523

Rock River Arms RRAge 3G, Complete Upper Receiver, 223 Remington/556NATO, 16" Barrel, A2 Flash Hider, RRA 15" Free Float M-LOK Handguard, Anodized Finish, Black, Fits AR-15, Includes Bolt Carrier Group and Charging Handle Assembly BB0470

Sons of Liberty Gun Works Broadsword 89 V2, Upper Receiver, 556NATO, 14.5", HUXWRX Flash Hider, Low Profile Gas Block, Black M4L89BSUPPER-14.5-556

Sons of Liberty Gun Works L89 V2, Complete Upper Receiver, 223 Wylde, 13.7" Pinned (16.5" OAL) Button-Rifled Barrel, HUXWRX Flash Hider, Low-Profile Gas Block, Black M4L89UPPER-13.7-556XL

Battle Arms Development WORKHORSE, Upper Receiver Assembly, 223 Remington/556NATO, 16" Barrel, Mid-length Gas System, Anodized Finish, Black, A2 Flash Hider, WORKHORSE 15" M-LOK Free Float Handguard, Does Not Include Bolt Carrier Group or Charging Handle WH-UR-16-556

Maxim Defense Industries PDX Complete upper, 556NATO, 5.5" Barrel, Anodized Finish, Black, AR Rifles MXM-47813