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  1. Aero Precision 11 items
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  11. 13.5" 2 items
  12. 15" 26 items
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Upper Type
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  2. Rifle 48 items
Options
  1. W/ BCG & CH 68 items
  2. W/O BCG & CH 46 items
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  1. 4" 5 items
  2. 4.5" 2 items
  3. 5" 13 items
  4. 6.5" 3 items
  5. 7" 7 items
  6. 7.5" 3 items
  7. 8" 4 items
  8. 8.5" 1 item
  9. 9" 1 item
  10. 10" 9 items
  11. 10.5" 8 items
  12. 12" 1 item
  13. 12.5" 2 items
  14. 14.5" 2 items
  15. 16" 51 items
  16. 16.1" 1 item
  17. 16.25" 1 item
  18. 18" 4 items
  19. 20" 4 items
  20. 24" 1 item
Material
  1. 416R Stainless Steel 1 item
  2. 4150 Chrome Moly Vanadium 3 items
  3. Aluminum 66 items
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  5. Steel 4 items
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Inventory
  1. In Stock 69 items
  2. Out of Stock 46 items
Customer Rating
  1. 5
    5 items
  2. 4
    & up     8 items
  3. 3
    & up     9 items
  4. 2
    & up     11 items

AR-15 Uppers

Whether you’re building a complete rifle or just looking to upgrade, we’re your destination for AR-15 upper receivers. At GunMag Warehouse, we offer a large selection of AR-15 uppers from top manufacturers such as Aero Precision, Bravo Company, and CMMG. From complete upper receivers ready for use to stripped uppers you can customize yourself, we’ve got you covered with quality options for AR pistols and rifles you can depend on. Take a look at our assortment in a variety of popular calibers like .223/5.56, .300 Blackout, and 9mm, and let our customer service team know if you have any questions.

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  1. TacFire AR-15 .223 / 5.56 Unassembled Upper Receiver Kit
    TacFire AR-15 .223 / 5.56 Unassembled Upper Receiver Kit
    $399.99 $264.99 $299.99 Save $135.00
  2. TacFire AR-15 .223 / 5.56 Unassembled Pistol Kit w/ Lower Parts Kit
    TacFire AR-15 .223 / 5.56 Unassembled Pistol Kit w/ Lower Parts Kit
    $399.99 $279.99 $349.99 Save $120.00
  3. Panzer Arms AR57 ULT AR-15 Steel 5.7x28mm Upper Receiver w/ M-LOK Handguard
    Panzer Arms AR57 ULT AR-15 Steel 5.7x28mm Upper Receiver w/ M-LOK Handguard
    $644.99 $599.99 $619.99 Save $45.00
  5. TacFire AR-15 .45 ACP Unassembled Upper Receiver Kit
    TacFire AR-15 .45 ACP Unassembled Upper Receiver Kit
    $449.99 $269.99 $274.99 Save $180.00
  7. TacFire AR-15 .45 ACP Upper Receiver
    TacFire AR-15 .45 ACP Upper Receiver
    (1)
    $399.99 $279.99 $289.99 Save $120.00
  8. TacFire AR-15 300 Blackout Unassembled Pistol Kit w/ Lower Parts Kit
    TacFire AR-15 300 Blackout Unassembled Pistol Kit w/ Lower Parts Kit
    (1)
    $359.99 $499.99 $309.99 $329.99 Save $170.00
  9. CMMG DISSENT Mk4 AR-15 10.5" CM 5.56MM Upper Receiver w/ 9.6" M-LOK Handguard
    CMMG DISSENT Mk4 AR-15 10.5" CM 5.56MM Upper Receiver w/ 9.6" M-LOK Handguard
    (1)
    $1,349.99 $1,399.99 $1,024.99 $1,035.99 Save $364.00
  10. TacFire AR-15 9mm Upper Receiver
    TacFire AR-15 9mm Upper Receiver
    $314.99 $259.99 $279.99 Save $55.00
  11. TacFire AR-15 .45 ACP Unassembled Pistol Kit w/ Lower Parts Kit
    TacFire AR-15 .45 ACP Unassembled Pistol Kit w/ Lower Parts Kit
    $499.99 $309.99 $329.99 Save $190.00
  16. TacFire AR-10 .308 / 7.62x51mm Upper Receiver
    TacFire AR-10 .308 / 7.62x51mm Upper Receiver
    $499.99 $354.99 $369.99 Save $145.00
  22. TacFire AR-15 9mm Unassembled Pistol Kit w/ Lower Parts Kit
    TacFire AR-15 9mm Unassembled Pistol Kit w/ Lower Parts Kit
    (1)
    $499.99 $279.99 $319.99 Save $220.00
  23. CMMG DISSENT Mk4 AR-15 6.5" .300 BLK Upper Receiver w/ 5.5" M-LOK Handguard
    CMMG DISSENT Mk4 AR-15 6.5" .300 BLK Upper Receiver w/ 5.5" M-LOK Handguard
    $1,349.99 $1,024.99 Save $325.00
  24. TacFire AR-10 .308 / 7.62x51 Unassembled Rifle Kit w/ Lower Parts Kit
    TacFire AR-10 .308 / 7.62x51 Unassembled Rifle Kit w/ Lower Parts Kit
    $699.99 $419.99 Save $280.00
  27. TacFire AR-15 .300 Blackout Upper Receiver
    TacFire AR-15 .300 Blackout Upper Receiver
    (2)
    $309.99 $399.99 $254.99 $299.99 Save $145.00
  28. TacFire AR-15 .300 Blackout Unassembled Upper Receiver Kit
    TacFire AR-15 .300 Blackout Unassembled Upper Receiver Kit
    $499.99 $259.99 $269.99 Save $240.00
  29. TacFire AR-15 9mm Unassembled Upper Receiver Kit
    TacFire AR-15 9mm Unassembled Upper Receiver Kit
    $399.99 $259.99 Save $140.00
  35. Battle Arms Development WORKHORSE Mod C AR-15 16" CMV 5.56 Upper Receiver w/ 15" M-LOK Handguard
    Battle Arms Development WORKHORSE Mod C AR-15 16" CMV 5.56 Upper Receiver w/ 15" M-LOK Handguard
    Out of stock
    $692.99 $659.99 Save $33.00
  36. Battle Arms Development Authority Elite AR-15 16" CMV 5.56 Upper Receiver w/ 15" M-LOK Handguard
    Battle Arms Development Authority Elite AR-15 16" CMV 5.56 Upper Receiver w/ 15" M-LOK Handguard
    $865.99 $824.99 Save $41.00
  38. CMMG BANSHEE AR-15 5" CM 5.7x28 Upper Receiver w/ EML4 4" M-LOK Handguard
    CMMG BANSHEE AR-15 5" CM 5.7x28 Upper Receiver w/ EML4 4" M-LOK Handguard
    $899.99 $749.99 $834.99 Save $150.00
  39. Faxon ARAK-21 AR-15 5.56 NATO Upper Receiver w/ Picatinny Handguard
    Faxon ARAK-21 AR-15 5.56 NATO Upper Receiver w/ Picatinny Handguard
    Out of stock
    $999.99 $920.99 Save $79.00
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