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 (243 Reviews)
    Sale
    $279.99
    Regular Price: $399.99 Save $120.00 (30%)
    Available
  2. AR-Stoner AR-15 Side Charging Upper Receiver Assembly 5.56 16" Barrel with 15" M-Lok Handguard
    AR-Stoner AR-15 Side Charging Upper Receiver Assembly 5.56 16" Barr... 4.3 (11 Reviews)
    Sale
    $399.99
    Regular Price: $499.99 Save $100.00 (20%)
    Out of Stock, Backorder OK
    What are product arrival notifications?
  3. 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
  4. Bushmaster XM15 AR-15 A3 Upper Receiver Assembly 5.56x45mm NATO 16" Barrel
    Bushmaster XM15 AR-15 A3 Upper Receiver Assembly 5.56x45mm NATO 16"... 4.9 (40 Reviews) Available
  5. Colt AR-15 A3 Upper Receiver Assembly 5.56x45mm NATO 16" Barrel Monolithic Rail Flip Up Sights
    Colt AR-15 A3 Upper Receiver Assembly 5.56x45mm NATO 16" Barrel Mon... 5.0 (2 Reviews)
    $959.99
    Available
  6. Adams Arms AR-15 Tactical Elite A3 Gas Piston Upper Receiver Assembly 5.56x45mm NATO 16" Barrel M...
    Adams Arms AR-15 Tactical Elite A3 Gas Piston Upper Receiver Assemb... 4.7 (13 Reviews)
    $719.87
    Available
  7. 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... 5.0 (10 Reviews)
    Clearance2 at this price
    $604.60
    Regular Price: $679.99 Save $75.39 (11%)
    Available
  8. Adams Arms AR-15 Base MOE A3 Gas Piston Upper Receiver Assembly 5.56x45mm NATO 16" Barrel
    Adams Arms AR-15 Base MOE A3 Gas Piston Upper Receiver Assembly 5.5... 4.4 (32 Reviews)
    $579.99
    Available
  9. 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 (22 Reviews)
    Clearance3 at this price
    Add to Cart for Price
    Regular Price: $866.20
    Available
  10. Adams Arms AR-15 Tactical Evo A3 Gas Piston Upper Receiver Assembly 5.56x45mm NATO 16" Barrel Mid...
    Adams Arms AR-15 Tactical Evo A3 Gas Piston Upper Receiver Assembly... 4.2 (29 Reviews)
    $719.87
    Available
  11. 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)
    $1,133.55
    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. 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
  14. 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...
    $689.99 - $699.99
    Available View More Options
  15. Adams Arms AR-15 Evo Ultra Lite A3 Gas Piston Upper Receiver Assembly Carbine 5.56x45mm NATO 16" ...
    Adams Arms AR-15 Evo Ultra Lite A3 Gas Piston Upper Receiver Assemb... 5.0 (2 Reviews)
    $799.70
    Available
  16. Adams Arms AR-15 Tactical Evo A3 Gas Piston Upper Receiver Assembly Carbine 5.56x45mm NATO 16" Ba...
    Adams Arms AR-15 Tactical Evo A3 Gas Piston Upper Receiver Assembly...
    $699.46
    Available
  17. Adams Arms AR-15 Base A3 Gas Piston Upper Receiver Assembly 5.56x45mm NATO 16" Barrel Mid Length
    Adams Arms AR-15 Base A3 Gas Piston Upper Receiver Assembly 5.56x45... 4.4 (64 Reviews)
    $550.64
    Available
  18. 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)
    $1,369.99
    Available
  19. DPMS AR-15 A3 Upper Receiver Assembly 5.56x45mm NATO 16" Light Contour Barrel
    DPMS AR-15 A3 Upper Receiver Assembly 5.56x45mm NATO 16" Light Cont... 4.6 (25 Reviews)
    Clearance10 at this price
    $341.40
    Regular Price: $449.99 Save $108.59 (24%)
    Available
  20. 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
    Out of Stock, Backorder OK
    What are product arrival notifications?
  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 (25 Reviews)
    $419.99
    Available
  22. Adams Arms AR-15 Tactical Elite A3 Gas Piston Upper Receiver Assembly Carbine 5.56x45mm NATO 16" ...
    Adams Arms AR-15 Tactical Elite A3 Gas Piston Upper Receiver Assemb... 5.0 (1 Review)
    $699.46
    Out of Stock, Backorder OK
    What are product arrival notifications?
  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 Extreme Duty A3 Upper Receiver Assembly 5.56x45mm NATO 16" Barrel
    Del-Ton AR-15 Extreme Duty A3 Upper Receiver Assembly 5.56x45mm NAT... 4.7 (12 Reviews)
    $569.99
    Available
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