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UPPERS

Premium Custom Builds. Direct-to-Consumer Value.
Welcome to the ultimate destination for modular firearm performance. Pro2A Tactical's AR-15 Complete Upper, Rifle, and Pistol collection is engineered for shooters who demand custom-shop quality, tight manufacturing tolerances, and field-proven reliability without the steep distributor markup.
We build every platform right here in Georgia using high-grade components, precise headspacing, and strict quality control. From ultra-compact home-defense pistols to flat-shooting precision distance rifles, we configure the exact setup you need to dominate the range, the field, or the competition clock.
Why the Industry Chooses Pro2A Tactical:
  • The Destination for Left-Handed Shooters: We don’t just throw an ambidextrous safety on a standard rifle and call it a day. As a lefty-owned business, we lead the industry with true mirrored, left-ejecting upper receivers and left-handed M16 profile bolt carrier groups across nearly every caliber we build.
  • Over 15 Calibers on a Single Footprint: Customize your platform for any mission. Explore standard 5.56 NATO and .300 Blackout tactical setups, high-velocity .22 ARC, 224 Valkyrie, 350 Legend, 400 legend, 6mm ARC, and 6.5 Grendel distance lines, or devastating big-bore options like .458 SOCOM and .50 Beowulf.
  • Side-Charging & High-Speed Performance: Beyond standard rear-charging layouts, we manufacture specialized non-reciprocating side-charging uppers for fast manual cycling under large optics, alongside high-speed reset capabilities built for performance triggers.
  • Ready Out of the Box: Skip the headache of piecemeal tuning. Our complete uppers drop directly onto any mil-spec lower receiver, and our complete firearms are shipped fully assembled and range-tested.
 

SHOP Pro2a Tactical's huge selection of AR-15 complete uppers in a variety of calibers - 223/5.56, 300 Blackout, 7.62x39, 6.8 SPC II, 6.5 Grendel, 6mm ARC, 450 Bushmaster, 50 Beowulf (12.7x42), 458 Socom, 224 Valkyrie. We also have AR-15 uppers in pistol calibers like 9mm, 40 S&W and 45 ACP. All our AR-15 complete uppers are carefully assembled, inspected for quality assurance and made right here in the USA.

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  1. -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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  2. -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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  3. -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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  4. -37%
    Combo Sale - 16 inch AR-15 350 Legend Melonite Upper + 7.5 inch 350 Legend Melonite Upper
    Rating:
    0%
    Special Price $569.99 $899.99
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  5. -38%
    Combo Sale - 20 inch AR-15 350 Legend Melonite Upper + 10.5 inch 350 Legend Melonite Upper
    Rating:
    100%
    1  Review
    Special Price $619.99 $999.99
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  6. -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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  7. -23%
    PRO2A 5" 300 Blackout 1/5 Micro Length Melonite M-LOK AR-15 Upper - Suppressor Ready
    Rating:
    99%
    6  Reviews
    Special Price $269.99 $349.99
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  8. -29%
    PRO2A 5" 7.62x39 1/10 Micro Length Melonite M-LOK AR-15 Upper - Suppressor Ready
    Rating:
    100%
    2  Reviews
    Special Price $269.99 $379.99
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  9. -36%
    PRO2A 18" 6.8 SPC II 1/11 Mid Length Melonite M-LOK AR-15 Upper
    Rating:
    100%
    1  Review
    Special Price $349.99 $549.99
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  10. -44%
    Combo Sale - 16 inch AR-15 6.5 Grendel Melonite Upper + 12.5 inch 6.5 Grendel Melonite Upper
    Rating:
    0%
    Special Price $579.99 $1,029.99
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  11. -38%
    Combo Sale - 18 inch AR-15 350 Legend Melonite Upper + 10.5 inch 350 Legend Melonite Upper
    Rating:
    0%
    Special Price $609.99 $979.99
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  12. -39%
    PRO2A 24" 6mm ARC 1/7.5 Rifle Length Melonite M-LOK AR-15 Upper
    Rating:
    96%
    5  Reviews
    Special Price $409.99 $669.99
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  13. -36%
    PRO2A 22" 6.8 SPC II 1/11 Rifle Length Melonite M-LOK AR-15 Upper
    Rating:
    100%
    1  Review
    Special Price $379.99 $589.99
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  14. -43%
    PRO2A 20" 6mm ARC 1/7.5 Rifle Length Melonite M-LOK AR-15 Upper
    Rating:
    92%
    4  Reviews
    Special Price $369.99 $649.99
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  15. -36%
    PRO2A 22" 223 Wylde 1/7 Rifle length Melonite Fluted Heavy Bull Barrel M-LOK AR-15 Upper
    Rating:
    100%
    4  Reviews
    Special Price $369.99 $579.99
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  16. -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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  17. -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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  18. -37%
    PRO2A 20" 6.8 SPC II 1/11 Rifle Length Melonite M-LOK AR-15 Upper
    Rating:
    98%
    4  Reviews
    Special Price $359.99 $569.99
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  19. -44%
    PRO2A 20" 350 Legend 1/16 Carbine Length Melonite M-LOK AR-15 Upper
    Rating:
    91%
    11  Reviews
    Special Price $349.99 $629.99
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  20. -33%
    PRO2A 12.5" 350 Legend 1/16 Pistol Length Melonite M-LOK AR-15 Upper
    Rating:
    87%
    6  Reviews
    Special Price $309.99 $459.99
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  21. -32%
    PRO2A 12.5" 350 Legend 1/16 Pistol Length Melonite M-LOK AR-15 Upper with Flash Can
    Rating:
    93%
    3  Reviews
    Special Price $339.99 $499.99
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  22. -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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  23. -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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  24. -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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  25. -25%
    PRO2A 10.5" 12.7x42 (50 Beowulf) 1/20 Carbine Length Melonite M-LOK AR-15 Upper
    Rating:
    99%
    8  Reviews
    Special Price $389.99 $519.99
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  26. -33%
    PRO2A 16" 12.7x42 (50 Beowulf) 1/20 Carbine Length Melonite M-LOK AR-15 Upper
    Rating:
    89%
    5  Reviews
    Special Price $389.99 $579.99
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  27. -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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  28. -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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  29. -24%
    PRO2A 7.5" 450 Bushmaster 1/24 Pistol Length Melonite M-LOK AR-15 Upper
    Rating:
    93%
    3  Reviews
    Special Price $369.99 $489.99
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  30. -41%
    PRO2A 16" 6mm ARC 1/7.5 Mid Length Melonite M-LOK AR-15 Upper
    Rating:
    97%
    2  Reviews
    Special Price $329.99 $559.99
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  31. -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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  32. -44%
    PRO2A 16" 350 Legend 1/16 Carbine Length Melonite M-LOK AR-15 Upper
    Rating:
    95%
    12  Reviews
    Special Price $309.99 $549.99
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    Add to Compare
  33. -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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  34. -43%
    PRO2A 16" 350 Legend 1/16 Carbine Length Melonite M-LOK AR-15 Upper with Flash Can
    Rating:
    88%
    7  Reviews
    Special Price $339.99 $599.99
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  35. -33%
    PRO2A 7.5" 350 Legend 1/16 Pistol Length Melonite M-LOK AR-15 Upper
    Rating:
    97%
    4  Reviews
    Special Price $289.99 $429.99
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  36. -38%
    PRO2A 7.5" 350 Legend 1/16 Pistol Length Melonite M-LOK AR-15 Upper with Flash Can - 48 HOUR DEAL ONLY!
    Rating:
    98%
    4  Reviews
    Special Price $289.99 $469.99
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