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300 Blackout Uppers

Enhance your rifle's performance with our premium .300 Blackout barreled upper assemblies, engineered for superior accuracy and optimal versatility. Ideal for both subsonic and supersonic loads, these upper assemblies provide reliable functionality and seamless compatibility with your AR-15 platform.

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Items 1-24 of 171

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  1. PSA 7" 300AAC Blackout Nitride 6" Lightweight Hex M-Lok Upper No BCG & CH

    PSA 7" 300AAC Blackout Nitride 6" Lightweight Hex M-Lok Upper No BCG & CH

    $229.99
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  2. PSA 7.5" Pistol-length 300AAC Blackout Phosphate 7" Lightweight M-Lok Upper Without BCG or CH

    PSA 7.5" Pistol-length 300AAC Blackout Phosphate 7" Lightweight M-Lok Upper Without BCG or CH

    Rating:
    95%
    (86)
    $219.99
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  3. PSA 7" 300AAC Blackout Nitride 6" Lightweight M-Lok Upper No BCG & CH

    PSA 7" 300AAC Blackout Nitride 6" Lightweight M-Lok Upper No BCG & CH

    $199.99
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  4. PSA 10.5" Pistol-Length 300AAC Blackout Nitride 9" Lightweight M-Lok Upper No BCG or CH, With MBUS Sight Set & Vortex Sparc

    PSA 10.5" Pistol-Length 300AAC Blackout Nitride 9" Lightweight M-Lok Upper No BCG or CH, With MBUS Sight Set & Vortex Sparc

    Rating:
    98%
    (75)
    $329.99
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  5. PSA 16" Pistol Length 300AAC Phosphate 13.5 Lightweight M-Lok Upper w/o BCG or CH

    PSA 16" Pistol Length 300AAC Phosphate 13.5 Lightweight M-Lok Upper w/o BCG or CH

    Rating:
    96%
    (129)
    $249.99
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  6. PSA 7.5" Pistol-length 300AAC Blackout Nitride 7" JLB M-Lok Upper - w/o BCG or CH

    PSA 7.5" Pistol-length 300AAC Blackout Nitride 7" JLB M-Lok Upper - w/o BCG or CH

    Rating:
    97%
    (12)
    $219.99
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  7. PSA 7.5" Pistol-length 300AAC Blackout Nitride 7" Hex M-Lok Upper - w/o BCG or CH

    PSA 7.5" Pistol-length 300AAC Blackout Nitride 7" Hex M-Lok Upper - w/o BCG or CH

    Rating:
    87%
    (3)
    $219.99
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  8. PSA 10.5" Pistol-Length 300AAC Nitride 12" Slant M-lok Upper w/ BCG-CH

    PSA 10.5" Pistol-Length 300AAC Nitride 12" Slant M-lok Upper w/ BCG-CH

    Rating:
    100%
    (1)
    $339.99
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  9. PSA 7.5" 300AAC Blackout Nitride 9" Lightweight M-Lok Upper w/ Fluted Flash Can, BCG, CH

    PSA 7.5" 300AAC Blackout Nitride 9" Lightweight M-Lok Upper w/ Fluted Flash Can, BCG, CH

    Rating:
    100%
    (6)
    $329.99
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  10. PSA 8.5" 300AAC Blackout Nitride 9" Lightweight Hex MLOK Upper w/ BCG & CH

    PSA 8.5" 300AAC Blackout Nitride 9" Lightweight Hex MLOK Upper w/ BCG & CH

    Rating:
    100%
    (3)
    $319.99
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  11. PSA Guardsman-15 8" 300BLK CL Phosphate 7" MLOK Upper with BCG & CH, FDE

    PSA Guardsman-15 8" 300BLK CL Phosphate 7" MLOK Upper with BCG & CH, FDE

    Rating:
    96%
    (10)
    $419.99
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  12. PSA Guardsman-15 8" 300BLK CL Phosphate 7" MLOK Upper with BCG & CH

    PSA Guardsman-15 8" 300BLK CL Phosphate 7" MLOK Upper with BCG & CH

    Rating:
    90%
    (4)
    $419.99
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  13. PSA 7.5" 300AAC Blackout Nitride 6" Lightweight Hex M-Lok Upper Without BCG & CH, ODG

    PSA 7.5" 300AAC Blackout Nitride 6" Lightweight Hex M-Lok Upper Without BCG & CH, ODG

    Rating:
    92%
    (27)
    $229.99
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  14. PSA 8.5" Pistol-length 300AAC Blackout Nitride 7" Lightweight M-Lok Upper - No BCG or CH

    PSA 8.5" Pistol-length 300AAC Blackout Nitride 7" Lightweight M-Lok Upper - No BCG or CH

    Rating:
    99%
    (31)
    $219.99
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  15. PSA 7.5" 300AAC Blackout 1/7 Nitride 6" Lightweight Hex M-Lok Upper Without BCG & CH

    PSA 7.5" 300AAC Blackout Nitride 6" Lightweight Hex M-Lok Upper Without BCG & CH

    Rating:
    95%
    (33)
    $219.99
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  16. TacFire 5" Upper .300 AAC Blackout 1:7 M-LOK Rail, Black

    TacFire 5" Upper .300 AAC Blackout 1:7 M-LOK Rail, Black

    Rating:
    100%
    (1)
    Regular Price $388.99 Special Price $349.99
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  17. PSA 8.5" Pistol-length 300AAC Nitride 7" Lightweight M-Lok Upper with BCG & CH

    PSA 8.5" Pistol-length 300AAC Nitride 7" Lightweight M-Lok Upper with BCG & CH

    Rating:
    92%
    (10)
    $319.99
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  18. PSA PA-15 Left Hand 8.5" 300BO Railed Upper w/ BCG

    PSA PA-15 Left Hand 8.5" 300BO Railed Upper w/ BCG

    Rating:
    94%
    (14)
    $449.99
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  19. Rock River Arms Coyote Carbine 16" Classic Upper .300 AAC Blackout 1:8 M-LOK Pistol-Length with BCG and CH, Black - BLK0592

    Rock River Arms Coyote Carbine 16" Classic Upper .300 AAC Blackout 1:8 M-LOK Pistol-Length with BCG and CH, Black - BLK0592

    Regular Price $917.99 Special Price $826.99
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  20. PSA 8.5" Pistol-Length 300AAC Nitride 10.5" Lightweight Hex M-Lok Upper - With BCG & CH

    PSA 8.5" Pistol-Length 300AAC Nitride 10.5" Lightweight Hex M-Lok Upper - With BCG & CH

    Rating:
    91%
    (14)
    $329.99
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  21. PSA 7.5" 300AAC Blackout 9" Lightweight Hex M-Lok Upper With Fluted Flash Can

    PSA 7.5" 300AAC Blackout 9" Lightweight Hex M-Lok Upper With Fluted Flash Can

    Rating:
    97%
    (13)
    $329.99
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  22. PSA 10.5" Pistol-Length 300AAC Blackout Nitride 9" Lightweight Hex M-Lok Upper - With BCG & CH

    PSA 10.5" Pistol-Length 300AAC Blackout Nitride 9" Lightweight Hex M-Lok Upper - With BCG & CH

    Rating:
    98%
    (21)
    $329.99
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  23. PSA 10.5" Pistol-Length 300AAC Blackout Nitride 9" Lightweight Hex M-Lok Upper No BCG or CH

    PSA 10.5" Pistol-Length 300AAC Blackout Nitride 9" Lightweight Hex M-Lok Upper No BCG or CH

    Rating:
    97%
    (120)
    $229.99
    Add to Wish List Add to Compare
  24. PSA 7" 300AAC Blackout Nitride 6" Lightweight Hex M-Lok Upper W/BCG & CH

    PSA 7" 300AAC Blackout Nitride 6" Lightweight Hex M-Lok Upper W/BCG & CH

    Rating:
    98%
    (26)
    $319.99
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Items 1-24 of 171

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