Showing 1 - 20 of 129 results
  1. Bushmaster AR-15 A3 Upper Receiver Assembly 450 Bushmaster 16" Barrel
    5.0 (13 Reviews)
    $659.99
    Available
  2. DPMS AR-15 Oracle A3 Upper Receiver Assembly 5.56x45mm NATO 16" Barrel Chrome Moly Matte Barrel
    4.7 (105 Reviews)
    $511.99
    Available
  3. Alexander Arms AR-15 Overwatch A3 Upper Receiver Assembly 6.5 Grendel 24" Barrel
    4.5 (24 Reviews)
    $849.99
    Available
  4. Alexander Arms AR-15 AWS A3 Upper Receiver Assembly 50 Beowulf 16.5" Barrel
    5.0 (4 Reviews)
    $1,139.99
    Available
  5. Noveske AR-15 Rogue Hunter A3 Upper Receiver Assembly 300 AAC Blackout 16" Barrel
    5.0 (3 Reviews)
    $1,130.50
    Available
  6. DPMS AR-15 A2 Upper Receiver Assembly 5.56x45mm NATO 20" Barrel A2 Handguard
    4.7 (12 Reviews)
    $483.99
    Available
  7. Del-Ton AR-15 Pistol A3 Upper Receiver Assembly 5.56x45mm NATO 11.5" Barrel
    4.2 (6 Reviews)
    $419.99
    Available
  8. Yankee Hill AR-15 Specter XL Black Diamond Upper Receiver Assembly 5.56x45mm NATO 16" Barrel
    4.6 (18 Reviews)
    $840.00
    Available
  9. Bushmaster XM15 AR-15 A3 Upper Receiver Assembly 5.56x45mm NATO 16" Barrel
    4.8 (6 Reviews)
    $419.99
    Available
  10. Adams Arms AR-15 Pistol PDW Base A3 Gas Piston Upper Receiver Assembly 5.56x45mm NATO 7.5" Barrel
    4.5 (8 Reviews)
    $735.00
    Available
  11. Adams Arms AR-15 Base MOE A3 Gas Piston Upper Receiver Assembly 5.56x45mm NATO 16" Barrel
    4.3 (25 Reviews)
    $579.99
    Available
  12. Alexander Arms AR-15 Entry A3 Upper Receiver Assembly 50 Beowulf 16.5" Barrel
    4.5 (37 Reviews)
    $659.99
    Sale Save $99.00 (13%)
    Available
  13. Olympic Arms AR-15 A3 Upper Receiver Assembly 7.62x39mm 16" Barrel
    4.7 (26 Reviews)
    $575.99
    Available
  14. Noveske AR-15 N4 Lo-Pro Gen III A3 Upper Receiver Assembly 300 AAC Blackout 16" Barrel
    5.0 (2 Reviews)
    $1,371.15
    Available
  15. Alexander Arms AR-15 Precision A3 Upper Receiver Assembly 50 Beowulf 16.5" Barrel
    $979.99
    Available
  16. Bushmaster AR-15 Patrolman M4 A3 Upper Receiver Assembly 5.56x45mm NATO 16" Barrel
    4.7 (15 Reviews)
    $479.99
    Available
  17. Colt AR-15 Pistol Flat-Top Upper Receiver Assembly 5.56x45mm NATO 14.5" Barrel Flip Up Rear Sight
    $627.00
    Available
  18. Colt AR-15 A3 Upper Receiver Assembly 5.56x45mm NATO 16" Barrel Flip Up Rear Sight
    $627.00
    Available
  19. Advanced Armament Co (AAC) AR-15 Pistol A3 Upper Receiver Assembly 300 AAC Blackout 9" Barrel
    4.7 (7 Reviews)
  20. Advanced Armament Co (AAC) AR-15 A3 Upper Receiver Assembly 300 AAC Blackout 16" Barrel
    4.6 (13 Reviews)
    $1,079.99
    Available