Advantage Arms Conversion Kit, 19-23G5-MOD-CA, 22 LR, 4.02" Barrel, Fits Glock 19/23 Gen 5, Optics Ready, Black, Fixed Sights, 10 Rounds, 2 Magazines, California Compliant AAC19-23G5-MOD-CA

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

Ballistic Advantage Performance Series, 556NATO, 13.7" Barrel, Black Finish, Lo Pro Gas Block, Carbine Length Gas System, Fits AR15 BABL556028F

Battle Arms Development WORKHORSE, Complete Upper Receiver, 556NATO, 16" Barrel, Fits AR-15, M-Lok Handguard, Anodized Finish, Sniper Gray, Includes Bad Rack-15 C Ambidextrous Charging Handle and AR15/M16 BCG WH-UR16G-Y-15C

Battle Arms Development WORKHORSE, Complete Upper Receiver, 556NATO, 16" Barrel, Fits AR-15, M-Lok Handguard, Anodized Finish, Sniper Gray, Includes Bad Rack-15 Ambidextrous Charging Handle and AR15/M16 BCG WH-UR16G-Y-15

Battle Arms Development WORKHORSE, Complete Upper Receiver, 556NATO, 10.5" Barrel, Fits AR-15, M-Lok Handguard, Anodized Fi ish, Sniper Gray, Includes Bad Rack-15 C Ambidextrous Charging Handle and AR15/M16 BCG WH-UR10.5G-Y-15C

Battle Arms Development WORKHORSE, Complete Upper Receiver, 556NATO, 10.5" Barrel, Fits AR-15, M-Lok Handguard, Anodized Finish, Sniper Gray, Includes Bad Rack-15 Ambidextrous Charging Handle and AR15/M16 BCG WH-UR10.5G-Y-15

Battle Arms Development WORKHORSE, Complete Upper Receiver, 556NATO, 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, Upper Receiver Assembly, 223 Remington/556NATO, 10.5" Barrel, Carbine-length Gas System, Anodized Finish, Black, A2 Flash Hider, WORKHORSE 9.5" M-LOK Free Float Handguard, Does Not Include Bolt Carrier Group or Charging Handle WH-UR-10.5-556

Battle Arms Development Authority Elite, Complete Upper Receiver, 556NATO, 16" Barrel, Fits AR-15, M-Lok Handguard, Anodized Finish, Sniper Gray, Includes Bad Rack-15 C Ambidextrous Charging Handle and AR15/M16 BCG BAD-AUTH-UR16G-Y-15C

Battle Arms Development Authority Elite, Complete Upper Receiver, 556NATO, 16" Barrel, Fits AR-15, M-Lok Handguard, Anodized Finish, Sniper Gray, Includes Bad Rack-15 Ambidextrous Charging Handle and AR15/M16 BCG BAD-AUTH-UR16G-Y-15

Battle Arms Development Authority Elite, Complete Upper Receiver, 556NATO, 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, 556NATO, 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

Geissele Automatics Super Duty MOD1, Complete Upper Receiver, 556NATO, 14.5" Pinned (16" OAL) Barrel, M-LOK Free Float Handguard, Geissele Airborn Charging Handle, Nanoweapon Reliability Enhanced Bolt Carrier Group, Fits AR-15, Anodized Finish, Desert Dirt Color 08-547S

Ballistic Advantage Modern Series, M4 Profile Barrel, 223 Remington/556NATO, 14.5", Carbine Length Gas System, 1:7 Twist, 1/2X28 Threads, 4150 CrMoV, QPQ Corrosion Resistant Finish, Black BABL556009M

Ballistic Advantage Barrel, 556NATO, 13.7", Black, Gas Block, Mid Length Gas System, AR-15 BABL556H37F

Ballistic Advantage Performance Series, Barrel, 223 Remington/556NATO, 13.9" Barrel, Matte Finish, Black, Low Profile Gas Block, Mid Length Gas System, Fits AR15 Upper Receivers BABL556037F

Sons of Liberty Gun Works EXO3 Complete Upper, 223 Remington/556NATO, 13.7" Pinned (16" OAL) Combat Barrel, QPQ Finish, Black, 13" EXO3 M-LOK Handguard, A2 Flash Hider EXO3UPPER-13.7-556

Ballistic Advantage Modern Series, Barrel, 556NATO, 13.7", 1:7, Bead Blasted BABL556033M

Ballistic Advantage Premium Series, Hanson Profile Barrel, 223 Wylde, Fits AR15, 14.5" Threaded Barrel, 1/2x28 Thread Pitch, 1:8" Barrel Twist, Mid-Length Gas System, Stainless Bead Blasted Finish, Silver, Included Low Profile Gas Block BABL223008P

Ballistic Advantage Performance Series, Hanson Profile Barrel, 556NATO, 14.5", Black Finish, Lo Pro Gas Block Included BABL556008F