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5.56 NATO

SHOP Pro2a Tactical's 5.56 NATO AR-15 Complete Uppers. We offer a huge selection in a variety of barrel lengths, twists, gas systems, handguards, muzzle devices and many options to enhance the performance of your upper. Our complete uppers with the bolt carrier group and charging handle are ready to shoot right out of the box. Be sure to browse our broad selection of complete lower receivers to complete your custom build. We are the superstore for high quality ar-15 uppers.

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  1. -39%
    PRO2A 5" 5.56 NATO 1/5 Micro Length Melonite M-LOK AR-15 Upper - Suppressor Ready
    Rating:
    91%
    5  Reviews
    Special Price $269.99 $439.99
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  2. -35%
    Combo Sale - 22 inch AR-15 5.56 NATO Melonite Upper + 12.5 inch 5.56 NATO Melonite Upper
    Rating:
    100%
    1  Review
    Special Price $579.99 $889.99
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  3. -44%
    Combo Sale - 16 inch 5.56 NATO Melonite Upper + 10.5 inch 5.56 NATO Melonite Upper
    Rating:
    98%
    4  Reviews
    Special Price $499.99 $899.99
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  4. -44%
    Combo Sale - 16 inch 5.56 NATO Melonite Upper + 7.5 inch 5.56 NATO Melonite Upper
    Rating:
    96%
    3  Reviews
    Special Price $489.99 $869.99
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  5. -38%
    PRO2A 5" 5.56 NATO 1/5 Micro Length Melonite M-LOK AR-15 Upper with Flash Can
    Rating:
    91%
    10  Reviews
    Special Price $279.99 $449.99
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  6. -32%
    PRO2A 7.5" 223/5.56 1/7 Pistol Length Melonite M-LOK AR-15 Upper with Flash Can
    Rating:
    99%
    5  Reviews
    Special Price $279.99 $409.99
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  7. -32%
    PRO2A 7.5" 223/5.56 1/7 Pistol Length Melonite M-LOK AR-15 Upper
    Rating:
    97%
    8  Reviews
    Special Price $249.99 $369.99
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  8. -38%
    PRO2A 10.5" 5.56 NATO 1/7 Carbine Length Melonite M-LOK AR-15 Upper
    Rating:
    93%
    7  Reviews
    Special Price $249.99 $399.99
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  9. -35%
    PRO2A 10.5" 5.56 NATO 1/7 Carbine length Melonite M-LOK AR-15 Upper with Flash Can
    Rating:
    98%
    8  Reviews
    Special Price $279.99 $429.99
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  10. -41%
    PRO2A 11.5" 5.56 NATO 1/7 Carbine Length Melonite M-LOK AR-15 Upper
    Rating:
    96%
    3  Reviews
    Special Price $259.99 $439.99
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  11. -34%
    PRO2A 11.5" 5.56 NATO 1/7 Carbine Length Melonite M-LOK AR-15 Upper with Flash Can
    Rating:
    95%
    7  Reviews
    Special Price $289.99 $439.99
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  12. -36%
    PRO2A 12.5" 5.56 NATO 1/7 Mid length Melonite M-LOK AR-15 Upper
    Rating:
    100%
    3  Reviews
    Special Price $289.99 $449.99
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  13. -36%
    PRO2A 12.5" 5.56 NATO 1/7 Mid length Melonite M-LOK AR-15 Upper with Flash Can
    Rating:
    100%
    2  Reviews
    Special Price $319.99 $499.99
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  14. -37%
    PRO2A 12.5" 5.56 NATO 1/7 Carbine length Melonite M-LOK AR-15 Upper with Flash Can
    Rating:
    98%
    6  Reviews
    Special Price $309.99 $489.99
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  15. -38%
    PRO2A 12.5" 5.56 NATO 1/7 Carbine length Melonite M-LOK AR-15 Upper
    Rating:
    96%
    7  Reviews
    Special Price $279.99 $449.99
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  16. -27%
    PRO2A 13.7" 5.56 NATO 1/7 Mid Length Melonite M-LOK AR-15 Upper with Flash Can - Pinned & Welded
    Rating:
    96%
    2  Reviews
    Special Price $359.99 $489.99
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  17. -33%
    PRO2A 13.7" 5.56 NATO 1/7 Mid Length Melonite M-LOK AR-15 Upper with Flash Can
    Rating:
    95%
    3  Reviews
    Special Price $329.99 $489.99
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  18. -32%
    PRO2A 13.7" 5.56 NATO 1/7 Mid Length Melonite M-LOK AR-15 Upper
    Rating:
    80%
    2  Reviews
    Special Price $299.99 $439.99
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  19. -27%
    PRO2A 13.7" 5.56 NATO 1/7 Mid Length Melonite M-LOK AR-15 Upper - Pinned & Welded
    Rating:
    100%
    2  Reviews
    Special Price $379.99 $519.99
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  20. -40%
    PRO2A 14.5" 5.56 NATO 1/7 Mid Length Melonite M-LOK AR-15 Upper with Flash Can - Pinned & Welded
    Rating:
    100%
    2  Reviews
    Special Price $349.99 $579.00
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  21. -42%
    PRO2A 14.5" 5.56 NATO 1/7 Mid Length Melonite M-LOK AR-15 Upper
    Rating:
    100%
    2  Reviews
    Special Price $289.99 $499.99
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  22. -40%
    PRO2A 14.5" 5.56 NATO 1/7 Mid Length Melonite M-LOK AR-15 Upper with Flash Can
    Rating:
    93%
    1  Review
    Special Price $319.99 $529.00
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  23. -38%
    PRO2A 14.5" 5.56 NATO 1/7 Mid Length "Ultralight" Melonite M-LOK AR-15 Upper
    Rating:
    0%
    Special Price $369.99 $599.99
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  24. -37%
    PRO2A 14.5" 5.56 NATO 1/7 Mid Length "Ultralight" Melonite M-LOK AR-15 Upper with Flash Can
    Rating:
    0%
    Special Price $399.99 $629.99
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  25. -38%
    PRO2A 14.5" 5.56 NATO 1/7 Mid Length "Ultralight" Melonite M-LOK AR-15 Upper - Pinned & Welded
    Rating:
    0%
    Special Price $409.99 $659.99
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  26. -38%
    PRO2A 16" 5.56 NATO 1/7 Mid Length "Ultralight" Melonite M-LOK AR-15 Upper
    Rating:
    100%
    1  Review
    Special Price $369.99 $599.99
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  27. -43%
    PRO2A 14.5" 5.56 NATO 1/7 Mid Length Melonite M-LOK AR-15 Upper - Pinned & Welded
    Rating:
    96%
    4  Reviews
    Special Price $329.99 $579.99
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  28. -40%
    PRO2A 16" 5.56 NATO 1/7 Melonite M-LOK AR-15 Upper
    Rating:
    93%
    13  Reviews
    Special Price $269.99 $449.99
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  29. -43%
    PRO2A 16" 5.56 NATO 1/7 Melonite M-LOK AR-15 Upper with Flash Can
    Rating:
    97%
    9  Reviews
    Special Price $299.99 $529.99
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  30. -40%
    PRO2A 16" 5.56 NATO 1/7 Mid length Heavy Barrel M-LOK AR-15 Upper - Unthreaded
    Rating:
    100%
    1  Review
    Special Price $289.99 $479.99
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  31. -31%
    PRO2A 18" 5.56 NATO 1/8 Mid length Melonite M-LOK AR-15 Upper
    Rating:
    98%
    7  Reviews
    Special Price $289.99 $419.99
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  32. -38%
    PRO2A 20" 5.56 NATO 1/7 Rifle length Melonite M-LOK AR-15 Upper
    Rating:
    100%
    7  Reviews
    Special Price $309.99 $499.99
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  33. -35%
    PRO2A 22" 5.56 NATO 1/7 Rifle Length Melonite M-LOK AR-15 Upper
    Rating:
    91%
    5  Reviews
    Special Price $329.99 $509.99
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33 Items

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