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  1. AR-Stoner AR-15 A3 Upper Receiver Assembly 5.56x45mm NATO 16" Barrel
    4.6 (175 Reviews)
    Sale
    $329.99
    Save $70.00 (17%)
    Available
  2. AR-Stoner AR-15 A3 Upper Receiver Assembly 7.62x39mm 16" Barrel
    4.7 (29 Reviews)
    $399.99
    Available
  3. AR-Stoner Upper Receiver Assembled AR-15 A3 Matte
    4.4 (14 Reviews)
    $89.99
    Available
  4. AR-Stoner Side Charging Upper Receiver Assembled AR-15 223 Remington Matte
    4.3 (12 Reviews)
    $239.99
    Available
  5. AR-Stoner Upper Receiver Stripped AR-15 A3 Matte
    3.3 (8 Reviews)
    $64.99
    Available
  6. Alexander Arms AR-15 Entry A3 Upper Receiver Assembly 50 Beowulf 16.5" Barrel
    4.5 (50 Reviews)
    Sale
    $719.99
    Save $39.00 (5%)
    Available
  7. Adams Arms AR-15 Tactical Elite A3 Gas Piston Upper Receiver Assembly 5.56x45mm NATO 16" Barrel M...
    5.0 (10 Reviews)
    $719.87
    Available
  8. Adams Arms AR-15 Base MOE A3 Gas Piston Upper Receiver Assembly 5.56x45mm NATO 16" Barrel
    4.4 (31 Reviews)
    $579.99
    Available
  9. Alexander Arms AR-15 AWS A3 Upper Receiver Assembly 50 Beowulf 16.5" Barrel
    5.0 (8 Reviews)
    $1,139.99
    Available
  10. Vltor MUR Modular Upper Receiver with Combination Forward Assist / Shell Deflector Assembled AR-1...
    4.8 (4 Reviews)
    $179.96
    Available View More Options
  11. Adams Arms AR-15 Pistol Tactical Evo A3 Gas Piston Upper Receiver Assembly 5.56x45mm NATO 11.5" B...
    4.6 (9 Reviews)
    $699.46
    Available
  12. Wheeler Engineering Delta Series Upper Receiver Vise Block Clamp AR-15
    4.7 (136 Reviews)
    $23.99
    Available
  13. Colt AR-15 Pistol Upper Receiver Assembly 5.56x45mm NATO 14.5" Barrel Flip Up Rear Sight
    $627.00
    Available
  14. Alexander Arms AR-15 Precision A3 Upper Receiver Assembly 50 Beowulf 16.5" Barrel
    3.8 (5 Reviews)
    $979.99
    Available
  15. Alexander Arms AR-15 Overwatch A3 Upper Receiver Assembly 6.5 Grendel 24" Barrel
    4.6 (41 Reviews)
    $849.99
    Available
  16. DPMS AR-15 AP4 A3 Conversion Upper Receiver Assembly 22 Long Rifle 16" Barrel
    4.8 (47 Reviews)
    $399.99
    List Price: $424.99 Save $25.00 (5%)
    Out of Stock, Backorder OK
    What are product arrival notifications?
  17. Advanced Armament Co (AAC) AR-15 Pistol A3 Upper Receiver Assembly 300 AAC Blackout 12.5" Barrel
    4.3 (3 Reviews)
    $999.99
    Available
  18. Wheeler Engineering Delta Series Upper Receiver & Picatinny Rail Vise Block AR-15, AR-10, LR-308
    4.6 (34 Reviews)
    $34.99
    Available
  19. Del-Ton AR-15 Pistol A3 Upper Receiver Assembly 5.56x45mm NATO 11.5" Barrel
    4.6 (12 Reviews)
    $419.99
    Available
  20. JP Enterprises AR-15 JP15 Upper Receiver Assembly 223 Remington (Wylde) 16" Barrel
    5.0 (3 Reviews)
    $1,369.99
    Available
  21. Daniel Defense AR-15 DDM4v11 Pro A3 Upper Receiver Assembly 5.56x45mm NATO 18" Barrel
    5.0 (2 Reviews)
    $1,215.00
    Out of Stock, Backorder OK
    What are product arrival notifications?
  22. Noveske AR-15 Light Recce Lo-Pro A3 Upper Receiver Assembly 5.56x45mm NATO 16" Barrel NSR-13.5 Fr...
    $1,410.75
    Available
  23. Daniel Defense AR-15 DDM4v11 LW A3 Upper Receiver Assembly 5.56x45mm NATO 16" Barrel
    $940.00
    Out of Stock, Backorder OK
    What are product arrival notifications?
  24. Del-Ton AR-15 Dissipator A3 Upper Receiver Assembly 5.56x45mm NATO 16" Barrel
    4.6 (37 Reviews)
    $429.99
    Available
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