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  1. AR-Stoner Carbine Kit with Complete Upper Assembly AR-15 5.56x45mm NATO 1 in 9" Twist 16" Barrel
    4.6 (51 Reviews)
    $459.99
    List Price: $509.97 Save $49.98 (9%)
    Available
  2. New Arrival Banner
    AR-Stoner Carbine Kit with Complete Upper Assembly AR-15 7.62x39mm 1 in 10" Twist 16" Barrel
    $459.99
    List Price: $509.97 Save $49.98 (9%)
    Available
  3. AR-Stoner AR-15 A3 Upper Receiver Assembly 5.56x45mm NATO 16" Barrel
    4.6 (179 Reviews)
    $399.99
    Available
  4. AR-Stoner AR-15 A3 Upper Receiver Assembly 7.62x39mm 16" Barrel
    4.5 (42 Reviews)
    $399.99
    Available
  5. AR-Stoner Upper Receiver Assembled AR-15 A3 Matte
    4.4 (15 Reviews)
    $89.99
    Available
  6. AR-Stoner Side Charging Upper Receiver Assembled AR-15 223 Remington Matte
    4.3 (13 Reviews)
    $239.99
    Available
  7. Alexander Arms AR-15 Overwatch A3 Upper Receiver Assembly 6.5 Grendel 24" Barrel
    4.6 (43 Reviews)
    Sale
    $759.99
    Save $90.00 (10%)
    Available
  8. AR-Stoner Upper Receiver Stripped AR-15 A3 Matte
    4.1 (7 Reviews)
    $64.99
    Available
  9. Bushmaster AR-15 A3 Upper Receiver Assembly 450 Bushmaster 16" Barrel
    5.0 (45 Reviews)
    $659.99
    Available
  10. 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
  11. Vltor MUR Modular Upper Receiver with Combination Forward Assist / Shell Deflector Assembled AR-1...
    4.8 (6 Reviews)
    Sale
    Add to Cart for Price
    List Price: $179.96
    Out of Stock, Backorder OK View More Options
  12. Adams Arms AR-15 Pistol PDW Tactical Elite A3 Gas Piston Upper Receiver Assembly 5.56x45mm NATO 7...
    4.2 (11 Reviews)
    $699.60
    Available
  13. Adams Arms AR-15 Tactical Evo A3 Gas Piston Upper Receiver Assembly 5.56x45mm NATO 16" Barrel Mid...
    4.2 (29 Reviews)
    $719.87
    Available
  14. Adams Arms AR-15 Base MOE A3 Gas Piston Upper Receiver Assembly 5.56x45mm NATO 16" Barrel
    4.4 (31 Reviews)
    $579.99
    Available
  15. Alexander Arms AR-15 AWS A3 Upper Receiver Assembly 50 Beowulf 16.5" Barrel
    5.0 (8 Reviews)
    $1,139.99
    Available
  16. Wheeler Engineering Delta Series Upper Receiver Vise Block Clamp AR-15
    4.7 (139 Reviews)
    Sale
    $21.49
    Save $2.50 (10%)
    Available
  17. Adams Arms AR-15 Pistol Tactical Evo A3 Gas Piston Upper Receiver Assembly 5.56x45mm NATO 11.5" B...
    4.6 (10 Reviews)
    $699.46
    Out of Stock, Backorder OK
    What are product arrival notifications?
  18. DPMS AR-15 Oracle A3 Upper Receiver Assembly 5.56x45mm NATO 16" Barrel Chrome Moly Matte Barrel
    4.7 (128 Reviews)
    $399.99
    Available
  19. Adams Arms AR-15 Tactical Elite A3 Gas Piston Upper Receiver Assembly Carbine 5.56x45mm NATO 16" ...
    $699.46
    Available
  20. Noveske AR-15 Rogue Hunter A3 Upper Receiver Assembly 5.56x45mm NATO 16" Barrel
    4.5 (6 Reviews)
    $1,133.55
    Available
  21. Noveske AR-15 Light Recce Lo-Pro A3 Upper Receiver Assembly 5.56x45mm NATO 16" Barrel NSR-13.5 Fr...
    $1,410.75
    Available
  22. Alexander Arms AR-15 Precision A3 Upper Receiver Assembly 50 Beowulf 16.5" Barrel
    3.8 (5 Reviews)
    $979.99
    Available
  23. Colt AR-15 Pistol Upper Receiver Assembly 5.56x45mm NATO 14.5" Barrel Flip Up Rear Sight
    $679.99
    Out of Stock, Backorder OK
    What are product arrival notifications?
  24. Noveske AR-15 Rogue Hunter A3 Upper Receiver Assembly 300 AAC Blackout 16" Barrel
    $1,130.50
    Available
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