Battle Arms Development WORKHORSE, Complete Upper Receiver, 5.56 NATO, 10.5" Barrel, Fits AR-15, M-Lok Handguard, Anodized Finish, Black, Includes Bad Rack-15 C Ambidextrous Charging Handle and AR15/M16 BCG WH-UR10.5B-Y-15C

Battle Arms Development WORKHORSE, Complete Upper Receiver, 5.56 NATO, 10.5" Barrel, Fits AR-15, M-Lok Handguard, Anodized Finish, Black, Includes Bad Rack-15 Ambidextrous Charging Handle and AR15/M16 BCG WH-UR10.5B-Y-15

Battle Arms Development Authority Elite, Complete Upper Receiver, 5.56 NATO, 10.5" Barrel, Fits AR-15, M-Lok Handguard, Anodized Finish, Sniper Gray, Includes Bad Rack-15 Ambidextrous Charging Handle and AR15/M16 BCG BAD-AUTH-UR10.5G-Y-15

FightLite (MCR) Mission Configurable Rifle, Milspec Complete Upper Receiver, 5.56 NATO, 12.5" Threaded Barrel, Dual Feed, Picatinny Rail, Dry Film Lubrication, Fits AR-15 Lower Receiver, Anodized Finish, Black, Includes (100)-M27 Links MCR-556-DFRS

FightLite Mission Configurable Rifle Dual-Feed Upper Receiver Assembly, 5.56 NATO, 12.5" Quick-Change Barrel, Threaded 1/2X28, Fits AR-15 Lower Receiver, M-LOK Handguard, Adjustable Sight Set, Manganese Phosphate Finish, Black, Includes Buffer, Spacer, Bolt Catch, Adapter and Compensator, Includes (100)-M27 Links MCR-556-DFRM

FightLite Mission Configurable Rifle Dual-Feed Upper Receiver Assembly, 5.56 NATO, 16.25" Quick-Change Barrel, Threaded 1/2X28, Fits AR-15 Lower Receiver, M-LOK Handguard, Adjustable Sight Set, Manganese Phosphate Finish, Black, Includes Buffer, Spacer, Bolt Catch, Adapter and Compensator, Includes (100)-M27 Links MCR-556-DFRM

FightLite (MCR) Mission Configurable Rifle, Milspec Complete Upper Receiver, 5.56 NATO, 16.25" Threaded Barrel, Dual Feed, Picatinny Rail, Dry Film Lubrication, Fits AR-15 Lower Receiver, Anodized Finish, Black, Includes (100)-M27 Links MCR-556-DFR

Gemtech Integra 556, Integrated Suppressed AR-15 Upper Receiver, 5.56 NATO, 10.5" Barrel Length, 16.1" Overall Length, Titanium, Black Finish 12112

Heckler & Koch MR556 A4 Upper Receiver, 223 Remington/5.56 NATO, 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 51000384Includes Bolt and Buffer M-Lok Handguard • Finish: Matte Black • Barrel length: 16.5" • 17.76 Free-Float LVOA Rail/ Ambi Bolt Release

LanTac USA LLC SF 15 Patrol, Complete Upper Receiver, 300 Blackout, 14.5" Barrel, Fits AR-15, Anodized Finish, Black 01-FA-300-PATROL-UPR

Primary Weapons Systems MK116 MOD 2-M, Upper Receiver, 762x39, 16.1" Barrel, Triad30 Muzzle Device, Anodized Finish, Black, Radian Raptor Charging Handle, MLOK Handguard, Fits AR-15 MK1-M2U-762X39-16

Primary Weapons Systems MK116 MOD 2-M, Upper Receiver, Fits AR-15, 223 Wylde, 16.1" Barrel, 1:8" Twist, FSC 556 Muzzle Device, 15" PWS PicLok MLOK Handguard, Anodized Finish, Black, Includes Radian Raptor Ambidextrous Charging Handle MK1-M2U-223-16

Primary Weapons Systems MMK116 MOD 1-M, Upper Receiver, 762X39, 16.1" Barrel, Triad30 Muzzle Device, Anodized Finish, Black, Radian Raptor Charging Handle, MLOK Handguard, Fits AR-15 MK1-M1U-762X39-16

Radian Weapons Upper/Handguard Set, Cerakote Finish, Flat Dark Earth, Fits AR-15, Includes 14" MLOK Handguard, Radian Raptor-SD Charging Handle R0627

Radian Weapons Upper/Handguard Set, Cerakote Finish, Brown, Fits AR-15, Includes 14" MLOK Handguard, Radian Raptor-SD Charging Handle R0626

Radian Weapons Upper/Handguard Set, Cerakote Finish, Gray, Fits AR-15, Includes 14" MLOK Handguard, Radian Raptor-SD Charging Handle R0625

Radian Weapons Upper/Handguard Set, Cerakote Finish, Brown, Fits AR-15, Includes 15.5" MLOK Handguard, Radian Raptor-SD Charging Handle R0619

Radian Weapons Upper/Handguard Set, Cerakote Finish, Flat Dark Earth, Fits AR-15, Includes 17" MLOK Handguard, Radian Raptor-SD Charging Handle R0613