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Choose of a huge selection of Complete Upper Kits which includes the upper assembly, bolt carrier group and charging handle, lower parts kit and stock/blade kit. Variety of Calibers, awesome savings - SHOP now and save!

Upper Kits

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Items 1-36 of 263

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  1. 13.7 inch 5.56 NATO Side Charging Upper Kit | Pro2A Tactical
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    PRO2A 13.7" 5.56 NATO 1/7 Mid Length NR Side Charging Melonite M-LOK AR-15 Upper Kit - Pinned & Welded
    Special Price $829.99 $1,079.99
  2. 13.7 inch 5.56 NATO AR-15 Upper Kit | Pro2A Tactical
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    PRO2A 13.7" 5.56 NATO 1/7 Mid Length Melonite M-LOK AR-15 Upper Kit - Pinned & Welded
    Rating:
    100%
    1  Review
    Special Price $579.99 $899.99
  3. 7.5 inch 450 Bushmaster Side Charging Upper Kit
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    PRO2A 10.5" 450 Bushmaster 1/24 Carbine Length NR Side Charging Melonite M-LOK AR-15 Upper with Flash Can Kit
    Special Price $919.99 $1,059.99
  4. 7.5 inch NR Side Charging 450 Bushmaster Upper Kit
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    PRO2A 10.5" 450 Bushmaster 1/24 Carbine Length NR Side Charging Melonite M-LOK AR-15 Upper Kit
    Rating:
    100%
    1  Review
    Special Price $889.99 $1,029.99
  5. 7.5 inch 450 Bushmaster Side Charging Upper Kit
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    PRO2A 7.5" 450 Bushmaster 1/24 Pistol Length NR Side Charging Melonite M-LOK AR-15 Upper with Flash Can Kit
    Special Price $899.99 $1,029.99
  6. 12.5" 5.56 NATO Side Charging Upper Kit
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    PRO2A 12.5" 5.56 NATO 1/7 Mid Length NR Side Charging Melonite M-LOK AR-15 Upper with Flash Can Kit
    Special Price $789.99 $969.99
  7. 12.5" 5,56 NATO AR-15 Mid Length Upper Kit
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    PRO2A 12.5" 5.56 NATO 1/7 Mid Length Melonite AR-15 Upper with Flash Can Kit
    Special Price $519.99 $799.99
  8. 12.5 inch 5.56 NATO Mid Length Upper Kit
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    PRO2A 12.5" 5.56 NATO 1/7 Mid Length Melonite AR-15 Upper Kit
    Special Price $489.99 $769.99
  9. 10.5 inch 10mm Side Charging AR Upper Kit
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    PRO2A 10.5" 10mm 1/16 Pistol Caliber NR Side Charging Melonite M-LOK Upper with Flash Can Kit
    Special Price $799.99 $959.99
  10. 10.5 inch 10mm Side Charging AR Upper Kit
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    PRO2A 10.5" 10mm 1/16 Pistol Caliber NR Side Charging Melonite M-LOK Upper Kit
    Special Price $769.99 $929.99
  11. 10.5 inch 10mm ar-15 pcc upper kit
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    PRO2A 10.5" 10mm 1/16 Pistol Caliber Melonite M-LOK Upper with Flash Can Kit
    Special Price $609.99 $809.99
  12. 10.5 inch 10mm AR-15 Upper Kit | US MADE
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    PRO2A 10.5" 10mm 1/16 Pistol Caliber Melonite M-LOK Upper Kit
    Special Price $579.99 $779.99
  13. 5.5 inch 10mm PCC Side Charging Upper Kit MP5
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    PRO2A 8.5" 10mm 1/16 Pistol Caliber NR Side Charging Melonite Upper Kit - MP5 Style
    Special Price $879.99 $1,089.99
  14. 8.5 inch 10mm Side Charging Upper Kit
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    PRO2A 8.5" 10mm 1/16 Pistol Caliber NR Side Charging Melonite M-LOK Upper with Flash Can Kit
    Special Price $779.99 $939.99
  15. 8.5 inch 10mm Side Charging Upper Kit
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    PRO2A 8.5" 10mm 1/16 Pistol Caliber NR Side Charging Melonite M-LOK Upper Kit
    Special Price $749.99 $909.99
  16. 5.5 inch 10mm PCC Upper Kit MP5 Style
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    PRO2A 8.5" 10mm 1/16 Pistol Caliber Melonite M-LOK Upper Kit - MP5 Style
    Special Price $689.99 $889.99
  17. 10.5 inch 40 S&W NR Side Charging Upper Kit
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    PRO2A 10.5" 40 S&W 1/16 Pistol Caliber NR Side Charging Melonite M-LOK Upper with Flash Can Kit
    Special Price $799.99 $929.99
  18. 10.5 inch 40 S&W NR Side Charging Upper Kit
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    PRO2A 10.5" 40 S&W 1/16 Pistol Caliber NR Side Charging Melonite M-LOK Upper Kit
    Special Price $769.99 $889.99
  19. 10.5 inch 40 S&W PCC Upper Kit | USA MADE
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    PRO2A 10.5" 40 S&W 1/16 Pistol Caliber Melonite M-LOK Upper with Flash Can Kit
    Special Price $609.99 $829.99
  20. 10.5 inch 40 S&W AR Upper Kit
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    PRO2A 10.5" 40 S&W 1/16 Pistol Caliber Melonite M-LOK Upper Kit
    Rating:
    93%
    1  Review
    Special Price $579.99 $799.99
  21. 5.5 inch 40 S&W PCC Side Charging Upper Kit | MP5 Style
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    PRO2A 8.5" 40 S&W 1/16 Pistol Caliber NR Side Charging Melonite M-LOK Upper Kit - MP5 Style
    Special Price $889.99 $1,059.99
  22. 8.5 inch 40 S&W NR Side Charging Upper Kit
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    PRO2A 8.5" 40 S&W 1/16 Pistol Caliber NR Side Charging Melonite M-LOK Upper with Flash Can Kit
    Special Price $779.99 $899.99
  23. 8.5 inch 40 S&W NR Side Charging Upper Kit
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    PRO2A 8.5" 40 S&W 1/16 Pistol Caliber NR Side Charging Melonite M-LOK Upper Kit
    Special Price $749.99 $869.99
  24. 8.5 inch 40 S&W AR-15 Upper Kit | MP5
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    PRO2A 8.5" 40 S&W 1/16 Pistol Caliber Melonite M-LOK Upper Kit - MP5 Style
    Special Price $689.99 $899.99
  25. 8.5 inch 40 S&W AR-15 Upper Kit | USA MADE
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    PRO2A 8.5" 40 S&W 1/16 Pistol Caliber Melonite M-LOK Upper with Flash Can Kit
    Special Price $589.99 $809.99
  26. 8.5 inch 40 S&W AR-15 Upper Kit
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    PRO2A 8.5" 40 S&W 1/16 Pistol Caliber Melonite M-LOK Upper Kit
    Rating:
    87%
    1  Review
    Special Price $559.99 $779.99
  27. 5.5 inch 10mm PCC Upper Kit MP5 Style
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    PRO2A 5.5" 10mm 1/16 Pistol Caliber Melonite M-LOK Upper with Flash Can Kit - MP5 Style
    Special Price $679.99 $879.99
  28. 5.5 inch 10mm NR Side Charging Upper Kit | USA MADE
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    PRO2A 5.5" 10mm 1/16 Pistol Caliber NR Side Charging Melonite M-LOK Upper with Flash Can Kit
    Special Price $759.99 $929.99
  29. 5.5 inch 40 S&W PCC Side Charging Upper Kit | MP5 Style
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    PRO2A 5.5" 40 S&W 1/16 Pistol Caliber NR Side Charging Melonite M-LOK Upper with Flash Can Kit - MP5 Style
    Special Price $869.99 $1,039.99
  30. 8.5 inch 10mm AR Upper Kit with Flash Can
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    PRO2A 8.5" 10mm 1/16 Pistol Caliber Melonite M-LOK Upper with Flash Can Kit
    Special Price $589.99 $829.99
  31. 8.5 inch 10mm PCC Upper Kit | USA MADE
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    PRO2A 8.5" 10mm 1/16 Pistol Caliber Melonite M-LOK Upper Kit
    Special Price $559.99 $759.99
  32. 22" 223 Wylde Heavy Bull Barrel Kit | Side Charging
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    PRO2A 22" 223 Wylde 1/7 Rifle Length NR Side Charging Melonite Fluted Heavy Bull Barrel AR-15 Upper Kit
    Rating:
    93%
    1  Review
    Special Price $869.99 $1,079.99
  33. 5.5 inch 10mm AR Upper Kit | MP5
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    PRO2A 5.5" 10mm 1/16 Pistol Caliber Melonite M-LOK Upper Kit - MP5 Style
    Special Price $649.99 $849.99
  34. 5.5 inch 10mm AR Upper Kit | USA MADE
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    PRO2A 5.5" 10mm 1/16 Pistol Caliber NR Side Charging Melonite M-LOK Upper Kit
    Special Price $729.99 $889.99
  35. 5.5 inch 10mm PCC Side Charging Upper Kit MP5
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    PRO2A 5.5" 10mm 1/16 Pistol Caliber NR Side Charging Melonite Upper with Flash Can Kit - MP5 Style
    Special Price $869.99 $1,069.99
  36. 5.5 inch 10mm PCC Upper Kit
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    PRO2A 5.5" 10mm 1/16 Pistol Caliber Melonite M-LOK Upper with Flash Can Kit
    Rating:
    100%
    1  Review
    Special Price $559.99 $789.99
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Shopping Options
Category
  1. 5.56 NATO 46
  2. 223 Wylde 13
  3. 300 Blackout 24
  4. 7.62x39 14
  5. 350 Legend 16
  6. 224 Valkyrie 4
  7. 6.5 Grendel 11
  8. 6mm ARC 8
  9. 6.8 SPC II 8
  10. 9x39 9
  11. 458 Socom 8
  12. 450 Bushmaster 12
  13. 12.7x42 (50 Beowulf) 6
  14. 9mm 27
  15. 40 S&W 18
  16. 45 ACP 21
  17. 10mm 18
Manufacturer
  1. Armscor 5
Pistol Caliber
  1. 9mm 25
Price
  1. $400.00 - $499.99 43
  2. $500.00 - $599.99 71
  3. $600.00 - $699.99 35
  4. $700.00 - $799.99 64
  5. $800.00 - $899.99 44
  6. $900.00 - $999.99 6
Rifle Caliber
  1. 5.56 NATO 1
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