Upper Receivers & Conversion Kits

Aero Precision M5 Complete Upper, 308 Winchester, 16" Barrel, 1:10 Twist, Rifle-Length Gas System, ATLAS S-ONE Handguard, Cerakote Finish, Flat Dark Earth, Does Not Include BCG or Carry Handle APAR538715M22

Aero Precision EPC-9, Complete Upper, 9MM, 16" Barrel, 1:10 Twist, ATLAS S-ONE 15" Handguard, Anodized Finish, Black, Does Not Include BCG or Charging Handle APAR620105M87

Aero Precision EPC-9, Complete Upper, 9MM, 16" Barrel, 1:10 Twist, ATLAS S-ONE 15" Handguard, Cerakote Finish, Flat Dark Earth, Does Not Include BCG or Charging Handle APAR620115M87

Aero Precision EPC 9 Assembled Upper, For EPC 9, Anodized, Black APAR620201AC

Aero Precision EPC 9 Assembled Upper, For EPC 9, Anodized, Flat Dark Earth APAR620202AC

Aero Precision M4E1 Assembled Upper, Black, AR15 APAR700201AC

Aero Precision M4E1 Assembled Upper, Flat Dark Earth, AR15 APAR700202AC

Aero Precision M4E1, Assembled Upper Receiver, Anodized Finish, Olive Drab Green, Fits AR15 APAR700220AC

Aero Precision M4E1, Assembled Upper Receiver, Anodized Finish, Kodiak Brown, Fits AR15 APAR700222AC

Aero Precision M4E1 AR15 Complete Upper, 223 Remington/5.56 NATO, 16" Barrel, 1:7 Twist, ATLAS S-ONE Handguard, Mid-Length Gas System, Anodized Finish, Black, Does Not Include BCG or Charging Handle APAR700305M7

Aero Precision M4E1 AR15 Complete Upper, 223 Remington/5.56 NATO, 16" Barrel, 1:7 Twist, ATLAS S-ONE Handguard, Mid-Length Gas System, Cerakote Finish, Flat Dark Earth, Does Not Include BCG or Charging Handle APAR700315M7

Battle Arms Development Authority Elite, Complete Upper Receiver, 5.56 NATO, 16" Barrel, Fits AR-15, M-Lok Handguard, Anodized Finish, Black, Includes Bad Rack-15 Ambidextrous Charging Handle and AR15/M16 BCG BAD-AUTH-UR16B-Y-15

Battle Arms Development Authority Elite, Complete Upper Receiver, 5.56 NATO, 16" Barrel, Fits AR-15, M-Lok Handguard, Anodized Finish, Black, Includes Bad Rack-15 C Ambidextrous Charging Handle and AR15/M16 BCG BAD-AUTH-UR16B-Y-15C

Battle Arms Development XIPHOS Upper Receiver, Stripped, 9MM, Anodized Finish, Black, Billet 7075-T6 Aluminum Construction BAD-PCC-UR

Battle Arms Development WORKHORSE, Upper Receiver Assembly, 223 Remington/5.56 NATO, 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

Battle Arms Development WORKHORSE, Complete Upper Receiver, 5.56 NATO, 16" Barrel, Fits AR-15, M-Lok Handguard, Anodized Finish, Black, Includes Bad Rack-15 Ambidextrous Charging Handle and AR15/M16 BCG WH-UR16B-Y-15

Battle Arms Development WORKHORSE, Complete Upper Receiver, 5.56 NATO, 16" Barrel, Fits AR-15, M-Lok Handguard, Anodized Finish, Black, Includes Bad Rack-15 C Ambidextrous Charging Handle and AR15/M16 BCG WH-UR16B-Y-15C

Ballistic Advantage Upper Receiver, Fits AR15 Rifles, Anodized Finish, Black BAPA100049

Ballistic Advantage Upper Receiver, Fits AR15 Rifles, Anodized Finish, Black BAPA100084

Ballistic Advantage BA10, Upper Receiver, Fits AR10 Rifles, Anodized Finish, Black BAPA100091

Bravo Company Upper, Mil-Spec, 1913 Rail for Mounting Optics and Accessories, Flat Top, Black BCM4-UR-M4

Bootleg Billet Upper, Upper, Black, AR15 BP-UR-1A

Black Rain Ordnance Milled Upper Receiver, 223 Remington/5.56 NATO, Flat Top Sights, Black Finish BRO-MUR-2

Black Rain Ordnance 458 SOCOM Complete Upper, 16" 4150 Chrom-Moly Vanadium Steel Barrel, 1:14 Twist, Forged, 15" MLOK Rail, Nitride Coated BCG, Billet Charging Handle w/Extended Tac Latch, 458 SOCOM Muzzle Brake, Black Finish BRO-SPEC15-CU-458S