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Upper Receivers & Conversion Kits

Battle Arms Development WORKHORSE

Upper Receiver Assembly

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

$432.30

Colt's Manufacturing Complete Upper

223 Rem/556NATO

Colt’s Manufacturing Complete Upper, 223 Rem/556NATO, 16″ Barrel, Black, MLOK Free Float Handguard LE6920EPR-CK

$907.20

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Colt’s Manufacturing Upper, 223REM/556NATO, Black Finish, Dust Cover, Forward Assist, M4 Feed Ramps SP63528

$141.89

Daniel Defense DDM4V7, Complete Upper, 223 Rem/556NATO, 16″ Cold Hammer Forged Barrel, 1:7 Twist, Black, MLOK 23-128-02339-047

$1,034.25

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Daniel Defense M4A1 Upper Receiver, 223 Rem/556NATO, 14.5″ Barrel (16″ OAL with Pinned Brake), Carbine Length Gas System, 1:7 Twist, M4 12.0 Rail, Flat Dark Earth Finish, Fits AR 23-004-13150

$1,276.80

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

$468.76

Radical Firearms Complete Upper Assembly

223 Rem/556NATO

Radical Firearms Complete Upper Assembly, 223 Rem/556NATO, 16″ Barrel, 1:7 Twist, Black, MLOK Handguard, A2 Flash Hider RF00325

$388.35

San Tan Tactical Upper

San Tan Tactical Upper, 223 Rem, 556NATO, Black, FT STT-15-LT-PILLAR-UPPER

$178.58

SilencerCo SCO15

Stripped Upper Receiver

SilencerCo SCO15, Stripped Upper Receiver, .223 Remington/556NATO, Black AC5065

$180.60

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

$720.59

Sons of Liberty Gun Works Patrol Complete Upper

223 Remington/556NATO

Sons of Liberty Gun Works Patrol Complete Upper, 223 Remington/556NATO, 16″ Combat Barrel, QPQ Finish, Black, Magpul SL Handguard, Midwest Combat Rear Sight, A2 Front Sight PATROLSLUPPER-16-556

$524.99

Spike's Tactical Complete Upper Receiver

223 Rem/556 NATO

Spike’s Tactical Complete Upper Receiver, 223 Rem/556 NATO, 16″ Chrome Lined Barrel, 1:7 Twist, Fits AR Rifles, Flat Top Receiver, Quad Rail Handguard, Black Finish STU5025-R9S

$613.66

Spike's Tactical Complete Upper Receiver

223 Rem/556NATO

Spike’s Tactical Complete Upper Receiver, 223 Rem/556NATO, 14.5″ Barrel (16″ OAL with Pinned Brake), Mid-length Gas System, Fits AR Rifles, Black, Flat Top Receiver, No Sights, 12″ CRR Quad Rail, Dynacomp Muzzle Brake, No Mags STU5050-CQ2D

$747.83

Spike's Tactical Complete Upper Receiver

223 Rem/556NATO

Spike’s Tactical Complete Upper Receiver, 223 Rem/556NATO, 16″ FN Hammer Forged Barrel, 1:7 Twist, Fits AR Rifles, Mid-length Gas System, Front Sight Post, Black Finish STU5435-MLS

$520.62

Spike’s Tactical Generation 2, Billet, Upper, 223 Remington, 556NATO, Black, Mil-Spec Barrel Nut SFT52B2

$212.63