1. 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 (388 Reviews)
    Sale
    $299.99
    Regular Price: $399.99 Save $100.00 (25%)
    Available
  2. AR-Stoner AR-15 Side Charging Upper Receiver Assembly 300 AAC Blackout 16" Barrel with 15" M-Lok ...
    AR-Stoner AR-15 Side Charging Upper Receiver Assembly 300 AAC Black... 3.8 (8 Reviews)
    Sale
    $399.99
    Regular Price: $549.99 Save $150.00 (27%)
    Available
  3. AR-Stoner AR-15 A3 Upper Receiver Assembly 6.5 Grendel 20" Barrel with 15" M-Lok Handguard
    AR-Stoner AR-15 A3 Upper Receiver Assembly 6.5 Grendel 20" Barrel w... 4.0 (2 Reviews)
    $449.99
    Available
  4. AR-Stoner AR-15 Competition A3 Upper Receiver Assembly 223 Remington (Wylde) 18" Barrel with 15" ...
    AR-Stoner AR-15 Competition A3 Upper Receiver Assembly 223 Remingto... 4.3 (3 Reviews)
    $479.99
    Available
  5. 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 (8 Reviews)
    $509.99
    Available
  6. AR-Stoner AR-15 A3 Upper Receiver Assembly 5.56x45mm NATO 16" Barrel with 15" M-Lok Handguard
    AR-Stoner AR-15 A3 Upper Receiver Assembly 5.56x45mm NATO 16" Barre...
    Clearance8 at this price
    $367.84
    Regular Price: $429.99 Save $62.15 (14%)
    Available
  7. 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 (16 Reviews)
    $499.99
    Available
  8. AR-Stoner Carbine Kit with Complete Upper Assembly AR-15 7.62x39mm 1 in 10" Twist 16" Barrel and ...
    AR-Stoner Carbine Kit with Complete Upper Assembly AR-15 7.62x39mm ... 4.9 (7 Reviews)
    $509.99
    Available
  9. AR-Stoner AR-15 A3 Upper Receiver Assembly 7.62x39mm 16" Barrel
    AR-Stoner AR-15 A3 Upper Receiver Assembly 7.62x39mm 16" Barrel 4.6 (137 Reviews)
    $399.99
    Available
  10. AR-Stoner AR-15 A3 Upper Receiver Assembly 300 AAC Blackout 16" Barrel with 15" M-Lok Handguard
    AR-Stoner AR-15 A3 Upper Receiver Assembly 300 AAC Blackout 16" Bar... 4.3 (17 Reviews)
    $499.99
    Available
  11. AR-Stoner AR-15 A3 Upper Receiver Assembly 22 Nosler 18" SS Fluted Barrel with 15" M-Lok Handguard
    AR-Stoner AR-15 A3 Upper Receiver Assembly 22 Nosler 18" SS Fluted ... 4.2 (19 Reviews)
    $499.99
    Available
  12. AR-Stoner AR-15 Side Charging Upper Receiver Assembly 22 Nosler 18" SS Fluted Barrel with 15" M-L...
    AR-Stoner AR-15 Side Charging Upper Receiver Assembly 22 Nosler 18"... 3.9 (15 Reviews)
    Clearance
    $364.42
    Regular Price: $499.99 Save $135.57 (27%)
    Available
  13. Bushmaster AR-15 A3 Upper Receiver Assembly 450 Bushmaster 16" Barrel
    Bushmaster AR-15 A3 Upper Receiver Assembly 450 Bushmaster 16" Barrel 4.9 (49 Reviews) Available
  14. 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
  15. Alexander Arms AR-15 AWS A3 Upper Receiver Assembly 50 Beowulf 16.5" Barrel
    Alexander Arms AR-15 AWS A3 Upper Receiver Assembly 50 Beowulf 16.5... 4.9 (12 Reviews)
    $1,139.99
    Available
  16. Bushmaster AR-15 A3 Upper Receiver Assembly 450 Bushmaster 20" Barrel
    Bushmaster AR-15 A3 Upper Receiver Assembly 450 Bushmaster 20" Barrel 4.9 (26 Reviews) Available
  17. New Arrival Banner
    Adams Arms AR-15 P2 Gas Piston Upper Receiver Assembly 5.56x45mm NATO 11.5'' Barrel
    Adams Arms AR-15 P2 Gas Piston Upper Receiver Assembly 5.56x45mm NA... Available
  18. New Arrival Banner
    Adams Arms AR-15 P2 Gas Piston Upper Receiver Assembly 5.56x45mm NATO 7.5'' Barrel
    Adams Arms AR-15 P2 Gas Piston Upper Receiver Assembly 5.56x45mm NA... Available
  19. New Arrival Banner
    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
  20. 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)
    $940.00
    Available
  21. 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
  22. War Sport AR-15 LVOA-C Upper Receiver Assembly 223 Wylde 14.7" Barrel LVOA-C Rail Handguard
    War Sport AR-15 LVOA-C Upper Receiver Assembly 223 Wylde 14.7" Barr... 5.0 (1 Review)
    $1,399.99
    Available View More Options
  23. DPMS AR-15 TPR A3 Upper Receiver Assembly 5.56x45mm NATO 20" Barrel
    DPMS AR-15 TPR A3 Upper Receiver Assembly 5.56x45mm NATO 20" Barrel 4.8 (4 Reviews)
    $729.99
    Available
  24. 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 (5 Reviews)
    $1,799.99
    Available
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