1. New Arrival Banner
    AR-Stoner AR-15 Optics Ready Upper Receiver Assembly 5.56x45mm 16" Barrel
    AR-Stoner AR-15 Optics Ready Upper Receiver Assembly 5.56x45mm 16" ...
    $389.99
    Available
  2. AR-Stoner AR-15 A3 Upper Receiver Assembly 5.56x45mm NATO 16" Barrel
    AR-Stoner AR-15 A3 Upper Receiver Assembly 5.56x45mm NATO 16" Barrel 4.7 (406 Reviews)
    $399.99
    Available
  3. AR-Stoner Carbine Kit with Complete Upper Assembly AR-15 5.56x45mm NATO 1 in 9" Twist 16" Barrel ...
    AR-Stoner Carbine Kit with Complete Upper Assembly AR-15 5.56x45mm ... 4.9 (9 Reviews)
    $509.99
    Available
  4. AR-Stoner AR-15 Side Charging Upper Receiver Assembly 5.56x45mm 16" Barrel with 15" M-Lok Handguard
    AR-Stoner AR-15 Side Charging Upper Receiver Assembly 5.56x45mm 16"... 4.4 (17 Reviews)
    $499.99
    Available
  5. AR-Stoner AR-15 A3 Billet Upper Receiver Assembly 5.56x45mm NATO 16" Barrel with 15" Ultralight M...
    AR-Stoner AR-15 A3 Billet Upper Receiver Assembly 5.56x45mm NATO 16...
    $599.99
    Available
  6. Daniel Defense AR-15 DDM4v11 A3 Upper Receiver Assembly 5.56x45mm NATO 16" Barrel
    Daniel Defense AR-15 DDM4v11 A3 Upper Receiver Assembly 5.56x45mm N... 5.0 (2 Reviews)
    $986.00
    Available
  7. Yankee Hill AR-15 Specter XL Black Diamond Upper Receiver Assembly 5.56x45mm NATO 16" Barrel
    Yankee Hill AR-15 Specter XL Black Diamond Upper Receiver Assembly ... 4.3 (24 Reviews)
    $866.20
    Available
  8. Adams Arms AR-15 P2 Gas Piston Upper Receiver Assembly 5.56x45mm NATO 16'' Barrel
    Adams Arms AR-15 P2 Gas Piston Upper Receiver Assembly 5.56x45mm NA... Available
  9. Noveske AR-15 Rogue Hunter A3 Upper Receiver Assembly 5.56x45mm NATO 16" Barrel
    Noveske AR-15 Rogue Hunter A3 Upper Receiver Assembly 5.56x45mm NAT... 4.5 (6 Reviews)
    Add to Cart for Price
    Regular Price: $1,133.55
    Available
  10. Colt AR-15 A3 Upper Receiver Assembly 5.56x45mm NATO 16" Barrel Flip Up Rear Sight
    Colt AR-15 A3 Upper Receiver Assembly 5.56x45mm NATO 16" Barrel Fli... 4.9 (14 Reviews)
    $679.99
    Out of Stock, Backorder OK
    What are product arrival notifications?
  11. Adams Arms AR-15 P1 Gas Piston Upper Receiver Assembly 5.56x45mm NATO 16'' Barrel
    Adams Arms AR-15 P1 Gas Piston Upper Receiver Assembly 5.56x45mm NA... Available
  12. DPMS AR-15 Oracle A3 Upper Receiver Assembly 5.56x45mm NATO 16" Barrel Chrome Moly Matte Barrel
    DPMS AR-15 Oracle A3 Upper Receiver Assembly 5.56x45mm NATO 16" Bar... 4.7 (129 Reviews) Available
  13. Noveske AR-15 Light Recce Lo-Pro A3 Upper Receiver Assembly 5.56x45mm NATO 16" Barrel NSR-13.5 Fr...
    Noveske AR-15 Light Recce Lo-Pro A3 Upper Receiver Assembly 5.56x45...
    $1,410.75
    Available
  14. JP Enterprises AR-15 JP15 Upper Receiver Assembly 223 Remington (Wylde) 16" Barrel
    JP Enterprises AR-15 JP15 Upper Receiver Assembly 223 Remington (Wy... 5.0 (3 Reviews)
    Add to Cart for Price
    Regular Price: $1,369.99
    Available
  15. HK AR-15 MR556 Gas Piston Upper Receiver Assembly 5.56x45mm NATO 16.5" Barrel
    HK AR-15 MR556 Gas Piston Upper Receiver Assembly 5.56x45mm NATO 16... 5.0 (6 Reviews)
    $1,799.99
    Out of Stock, Backorder OK
    What are product arrival notifications?
  16. CMMG AR-15 MK4 T Upper Receiver Assembly 5.56x45mm NATO 16" Salt Bath Nitride Finished Chrome Mol...
    CMMG AR-15 MK4 T Upper Receiver Assembly 5.56x45mm NATO 16" Salt Ba...
    Clearance — Select Items
    $538.26 - $699.99
    Regular Price: $689.99 - $699.99 Save up to $151.73 (21%)
    Available View More Options
  17. Daniel Defense AR-15 DDM4v9 A3 Upper Receiver Assembly 5.56x45mm NATO 16" Barrel
    Daniel Defense AR-15 DDM4v9 A3 Upper Receiver Assembly 5.56x45mm NA...
    $1,076.00
    Available
  18. Daniel Defense AR-15 DDM4v11 LW A3 Upper Receiver Assembly 5.56x45mm NATO 16" Barrel
    Daniel Defense AR-15 DDM4v11 LW A3 Upper Receiver Assembly 5.56x45m...
    $986.00
    Out of Stock, Backorder OK
    What are product arrival notifications?
  19. Bushmaster AR-15 Patrolman M4 A3 Upper Receiver Assembly 5.56x45mm NATO 16" Barrel
    Bushmaster AR-15 Patrolman M4 A3 Upper Receiver Assembly 5.56x45mm ... 4.6 (89 Reviews) Available
  20. New Arrival Banner
    Adams Arms AR-15 P3 Gas Piston Upper Receiver Assembly 5.56x45mm NATO 16.5'' Barrel
    Adams Arms AR-15 P3 Gas Piston Upper Receiver Assembly 5.56x45mm NA... Available
  21. Del-Ton AR-15 A3 Upper Receiver Assembly 5.56x45mm NATO 16" Barrel 1 in 9" Twist Mid Length Heavy...
    Del-Ton AR-15 A3 Upper Receiver Assembly 5.56x45mm NATO 16" Barrel ... 5.0 (26 Reviews)
    $419.99
    Available
  22. Del-Ton AR-15 A3 Upper Receiver Assembly 5.56x45mm NATO 16" Barrel 1 in 7" Twist M4 Contour Barrel
    Del-Ton AR-15 A3 Upper Receiver Assembly 5.56x45mm NATO 16" Barrel ... 5.0 (23 Reviews)
    $459.99
    Available
  23. Del-Ton AR-15 Dissipator A3 Upper Receiver Assembly 5.56x45mm NATO 16" Barrel
    Del-Ton AR-15 Dissipator A3 Upper Receiver Assembly 5.56x45mm NATO ... 4.6 (39 Reviews)
    $429.99
    Available
  24. Del-Ton AR-15 A3 Upper Receiver Assembly 5.56x45mm NATO 16" Barrel 1 in 7" Twist Mid Length Mediu...
    Del-Ton AR-15 A3 Upper Receiver Assembly 5.56x45mm NATO 16" Barrel ... 4.5 (15 Reviews)
    $449.99
    Available
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