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  1. Handguard Style
    Free Float
Brand
  1. Aero Precision 5 items
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  10. 5.56mm NATO 25 items
  11. 5.7 x 28mm 3 items
  12. 6mm ARC 1 item
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  14. 7.62 x 39mm 1 item
  15. 9mm Luger 5 items
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  1. KeyMod 2 items
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  2. 5.5" 4 items
  3. 7" 3 items
  4. 9" 1 item
  5. 9.6" 2 items
  6. 10" 5 items
  7. 12" 1 item
  8. 12.25" 2 items
  9. 13.5" 2 items
  10. 15" 23 items
  11. 15.25" 2 items
Handguard Style
  1. Free Float 51 items
Upper Type
  1. Pistol 16 items
  2. Rifle 35 items
Options
  1. W/ BCG & CH 45 items
  2. W/O BCG & CH 6 items
Barrel Length
  1. 4" 1 item
  2. 4.5" 2 items
  3. 5" 5 items
  4. 6.5" 3 items
  5. 7" 1 item
  6. 7.5" 3 items
  7. 8" 2 items
  8. 8.5" 1 item
  9. 9" 1 item
  10. 10" 2 items
  11. 10.5" 7 items
  12. 16" 31 items
  13. 16.1" 1 item
  14. 18" 4 items
  15. 20" 3 items
  16. 24" 1 item
Material
  1. 416R Stainless Steel 1 item
  2. 4150 Chrome Moly Vanadium 2 items
  3. Aluminum 22 items
  4. Chrome Moly Venadium Steel 2 items
  5. Steel 1 item
Inventory
  1. In Stock 34 items
  2. Out of Stock 17 items
Customer Rating
  1. 5
    3 items
  2. 4
    & up     5 items
  3. 2
    & up     6 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 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. 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
  4. 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
  6. 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
  7. 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
  8. 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
  10. 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
  11. 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
  17. 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
  18. 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
  20. 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
  21. Geissele Automatics Super Duty MOD1 AR-15 13.9" Pinned / 16" OAL 5.56 Upper Receiver with Free Float M-LOK Handguard
    Geissele Automatics Super Duty MOD1 AR-15 13.9" Pinned / 16" OAL 5.56 Upper Receiver with Free Float M-LOK Handguard
    Out of stock
    $1,325.99 $1,450.99
  22. CMMG BANSHEE Mk4 AR-15 4.5" CM .22 LR Upper Receiver w/ EML4 4" M-LOK Handguard
    CMMG BANSHEE Mk4 AR-15 4.5" CM .22 LR Upper Receiver w/ EML4 4" M-LOK Handguard
    Out of stock
    $724.99 $589.99 $637.99 Save $135.00
  23. RISE Armament AR-15 18" SS 22 ARC Assembled Upper Receiver with Free Float 15" M-LOK Handguard
    RISE Armament AR-15 18" SS 22 ARC Assembled Upper Receiver with Free Float 15" M-LOK Handguard
    $1,199.99 $999.99 Save $200.00
  24. Geissele Automatics Super Duty MOD1 AR-15 14.5" Pinned / 16" OAL 5.56 Upper Receiver with Free Float M-LOK Handguard
    Geissele Automatics Super Duty MOD1 AR-15 14.5" Pinned / 16" OAL 5.56 Upper Receiver with Free Float M-LOK Handguard
    Out of stock
    $1,325.99 $1,450.99
  26. Battle Arms Development WORKHORSE AR-15 16" CMV 5.56 Upper Receiver w/ 15" M-LOK Handguard
    Battle Arms Development WORKHORSE AR-15 16" CMV 5.56 Upper Receiver w/ 15" M-LOK Handguard
    Out of stock
    $724.99 $692.99 Save $32.00
  28. Battle Arms Development Authority Elite Mod C AR-15 16" CMV 5.56 Upper Receiver w/ 15" M-LOK Handguard
    Battle Arms Development Authority Elite Mod C AR-15 16" CMV 5.56 Upper Receiver w/ 15" M-LOK Handguard
    $865.99 $824.99 Save $41.00
  33. RISE Armament AR-15 18" SS 6mm ARC Assembled Upper Receiver with Free-Float 15" M-LOK Handguard
    RISE Armament AR-15 18" SS 6mm ARC Assembled Upper Receiver with Free-Float 15" M-LOK Handguard
    $1,199.99 $999.99 Save $200.00
  37. Geissele Automatics Super Duty MOD1 AR-15 16" 5.56 NATO Upper Receiver with 15" SMR MK16 M-LOK Handguard
    Geissele Automatics Super Duty MOD1 AR-15 16" 5.56 NATO Upper Receiver with 15" SMR MK16 M-LOK Handguard
    Out of stock
    $1,325.99 $1,450.99
  38. Aero Precision EPC-9 AR-15 16" 9mm CMV Upper Receiver w/ ATLAS S-ONE 15" M-LOK Handguard
    Aero Precision EPC-9 AR-15 16" 9mm CMV Upper Receiver w/ ATLAS S-ONE 15" M-LOK Handguard
    Out of stock
    $590.99 $625.99 $529.99 $564.99 Save $61.00
  39. Aero Precision M4E1 AR-15 16" CMV 5.56 Upper Receiver w/ 15" ATLAS S-ONE M-LOK Handguard
    Aero Precision M4E1 AR-15 16" CMV 5.56 Upper Receiver w/ 15" ATLAS S-ONE M-LOK Handguard
    Out of stock
    $655.99 $690.99 $589.99 $624.99 Save $66.00
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