Showing 1 - 20 of 59 results
  1. Bushmaster XM15 AR-15 A3 Upper Receiver Assembly 5.56x45mm NATO 16" Barrel
    4.9 (16 Reviews)
    $419.99
    Available
  2. Bushmaster AR-15 Patrolman M4 A3 Upper Receiver Assembly 5.56x45mm NATO 16" Barrel
    4.8 (35 Reviews)
    Sale
    $399.99
    Save $75.00 (16%)
    Available
  3. Adams Arms AR-15 Tactical Evo A3 Gas Piston Upper Receiver Assembly 5.56x45mm NATO 16" Barrel Mid Length
    4.2 (26 Reviews)
    $719.87
    Available
  4. DPMS AR-15 Oracle A3 Upper Receiver Assembly 5.56x45mm NATO 16" Barrel Chrome Moly Matte Barrel
    4.8 (104 Reviews)
    $511.99
    Available
  5. Colt AR-15 A3 Upper Receiver Assembly 5.56x45mm NATO 16" Barrel Flip Up Rear Sight
    5.0 (3 Reviews)
    $627.00
    Available
  6. Colt AR-15 SOCOM A3 Upper Receiver Assembly 5.56x45mm NATO 16" Barrel
    4.0 (4 Reviews)
    $727.00
    Available
  7. Yankee Hill AR-15 Specter XL Black Diamond Upper Receiver Assembly 5.56x45mm NATO 16" Barrel
    4.6 (18 Reviews)
    $840.00
    Available
  8. Daniel Defense AR-15 DDM4v9 LW A3 Upper Receiver Assembly 5.56x45mm NATO 16" Barrel
    $1,025.00
    Available
  9. Bushmaster AR-15 A3 Upper Receiver Assembly 5.56x45mm NATO 16" Barrel
    4.0 (2 Reviews)
    $649.99
    Available
  10. Del-Ton AR-15 Dissipator A3 Upper Receiver Assembly 5.56x45mm NATO 16" Barrel
    4.6 (33 Reviews)
    $429.99
    Available
  11. Yankee Hill AR-15 Smooth Carbine Upper Receiver Assembly 5.56x45mm NATO 16" Barrel
    5.0 (9 Reviews)
    $783.00
    Available
  12. Adams Arms AR-15 Base A3 Gas Piston Upper Receiver Assembly 5.56x45mm NATO 16" Barrel Mid Length
    4.4 (60 Reviews)
    $550.64
    Available
  13. Daniel Defense AR-15 DDM4v11 A3 Upper Receiver Assembly 5.56x45mm NATO 16" Barrel
    $939.55
    Available
  14. Adams Arms AR-15 Base MOE A3 Gas Piston Upper Receiver Assembly 5.56x45mm NATO 16" Barrel
    4.4 (28 Reviews)
    $579.99
    Available
  15. Noveske AR-15 Rogue Hunter A3 Upper Receiver Assembly 5.56x45mm NATO 16" Barrel
    4.4 (5 Reviews)
    $1,133.55
    Available
  16. Del-Ton AR-15 A3 Upper Receiver Assembly 5.56x45mm NATO 16" Barrel 1 in 7" Twist M4 Contour Barrel
    5.0 (20 Reviews)
    $463.99
    Available
  17. Del-Ton AR-15 A3 Upper Receiver Assembly 5.56x45mm NATO 16" Barrel 1 in 7" Twist Mid Length Medium Contour Barrel
    4.5 (12 Reviews)
    $449.99
    Available
  18. Del-Ton AR-15 A3 Upper Receiver Assembly 5.56x45mm NATO 16" Barrel 1 in 9" Twist Mid Length Heavy Contour Barrel
    5.0 (23 Reviews)
    $414.99
    Available
  19. Colt AR-15 A3 Upper Receiver Assembly 5.56x45mm NATO 16" Barrel Monolithic Rail Flip Up Sights
  20. Bushmaster AR-15 Dissipator A3 Upper Receiver Assembly 5.56x45mm NATO 16" Barrel
    4.0 (2 Reviews)
    $499.99
    Available
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