Showing 1 - 24 of 145 results
  1. DPMS AR-15 A3 Upper Receiver Assembly 300 AAC Blackout 16" Barrel GlacierGuard Handguard Single Rail Gas Block A2 Flash Hider
    4.6 (25 Reviews)
  2. DPMS AR-15 Oracle A3 Upper Receiver Assembly 5.56x45mm NATO 16" Barrel Chrome Moly Matte Barrel
    4.8 (98 Reviews)
    $426.99
    Available
  3. Bushmaster AR-15 A3 Upper Receiver Assembly 450 Bushmaster 16" Barrel
    5.0 (11 Reviews)
  4. Bushmaster AR-15 A3 Upper Receiver Assembly 450 Bushmaster 20" Barrel
    4.9 (13 Reviews)
  5. Yankee Hill AR-15 Specter XL Black Diamond Upper Receiver Assembly 5.56x45mm NATO 16" Barrel
    4.6 (16 Reviews)
    $840.00
    Available
  6. Alexander Arms AR-15 AWS A3 Upper Receiver Assembly 50 Beowulf 16.5" Barrel
    5.0 (3 Reviews)
    $1,139.99
    Available
  7. Alexander Arms AR-15 Overwatch A3 Upper Receiver Assembly 6.5 Grendel 24" Barrel
    4.3 (19 Reviews)
    $839.99
    Available
  8. DPMS AR-15 Lo-Pro Flat-Top Upper Receiver Assembly 5.56x45mm NATO 16" Barrel
    4.7 (71 Reviews)
    $414.99
    Available
  9. Alexander Arms AR-15 Entry A3 Upper Receiver Assembly 50 Beowulf 16.5" Barrel
    4.5 (35 Reviews)
    $759.99
    Available
  10. Del-Ton AR-15 A3 Upper Receiver Assembly 5.56x45mm NATO 16" Barrel 1 in 7" Twist M4 Contour Barrel
    4.9 (18 Reviews)
    $463.99
    Available
  11. Noveske AR-15 Rogue Hunter A3 Upper Receiver Assembly 300 AAC Blackout 16" Barrel
    5.0 (2 Reviews)
    $1,130.50
    Available
  12. Del-Ton AR-15 Pistol A3 Upper Receiver Assembly 5.56x45mm NATO 11.5" Barrel
    4.2 (6 Reviews)
  13. Noveske AR-15 Rogue Hunter A3 Upper Receiver Assembly 5.56x45mm NATO 16" Barrel
    5.0 (3 Reviews)
    $1,133.55
    Available
  14. DPMS AR-15 Flat-Top Upper Receiver Assembly 223 Remington 24" Bull Barrel
    4.6 (19 Reviews)
  15. Adams Arms AR-15 Pistol PDW Base A3 Gas Piston Upper Receiver Assembly 5.56x45mm NATO 7.5" Barrel
    4.5 (8 Reviews)
    $735.00
    Available
  16. Adams Arms AR-15 Base MOE A3 Gas Piston Upper Receiver Assembly 5.56x45mm NATO 16" Barrel
    4.3 (21 Reviews)
  17. DPMS AR-15 A3 Upper Receiver Assembly 300 AAC Blackout 16" Barrel M111 Mid Length FF Handguard AAC Blackout Flash Hider
  18. Del-Ton AR-15 A3 Upper Receiver Assembly 5.56x45mm NATO 16" Barrel 1 in 9" Twist M4 Contour Barrel
    4.8 (12 Reviews)
    $432.99
    Available
  19. Del-Ton AR-15 Dissipator A3 Upper Receiver Assembly 5.56x45mm NATO 16" Barrel
    4.7 (30 Reviews)
    $432.99
    Available
  20. Olympic Arms AR-15 A3 Upper Receiver Assembly 7.62x39mm 16" Barrel
    4.6 (23 Reviews)
  21. Alexander Arms AR-15 Precision A3 Upper Receiver Assembly 50 Beowulf 16.5" Barrel
    $979.99
    Available
  22. Advanced Armament Co (AAC) AR-15 Pistol A3 Upper Receiver Assembly 300 AAC Blackout 9" Barrel
    4.7 (7 Reviews)
    $1,079.99
    Available
  23. Del-Ton AR-15 A3 Upper Receiver Assembly 5.56x45mm NATO 16" Barrel 1 in 9" Twist Mid Length Heavy Contour Barrel
    5.0 (22 Reviews)
    $432.99
    Available
  24. Wilson Combat AR-15 A3 Upper Receiver Assembly 458 SOCOM 16" Barrel
    5.0 (1 Review)
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