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.300 Blackout Kits

PSA is your headquarters for ordering high-quality 300 blackout build kits and lower parts kits for your build. We have what every armorer needs to complete an AR-15 build with confidence. Our kits are tried and true and designed to beat the standard and be the standard. Be sure to also check out our selection of 300 blackout ammo. 

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  1. palmetto state armory magpul moe lower build kit flat dark earth

    PSA Magpul MOE Lower Build Kit - Flat Dark Earth

    Rating:
    98%
    (276)
    $119.99
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  2. ar-15 lower receiver parts kit

    Palmetto State Armory MOE LPK - OD Green

    Rating:
    96%
    (26)
    $59.99
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  3. ar-15 lower parts kit

    Palmetto State Armory MOE LPK - Flat Dark Earth

    Rating:
    97%
    (47)
    $59.99
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  4. ar-15 lower parts kit

    PSA MOE Lower Parts Kit, Black

    Rating:
    95%
    (97)
    $59.99
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  5. Magpul AR-15 Stock Kit in Flat Dark Earth

    Palmetto State Armory MOE Stock Kit Flat Dark Earth

    Rating:
    95%
    (23)
    $79.95
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  6. Palmetto State Armory Magpul AR-15 Stock Kit in Black

    Palmetto State Armory MOE Stock Kit Black - 1870

    Rating:
    98%
    (64)
    $79.95
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  7. A2 AR-15 Rifle Lower Build Kit in black

    Palmetto State Armory A2 Rifle Lower Build Kit

    Rating:
    95%
    (121)
    $119.99
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  8. ar-15 lower parts kit

    Palmetto State Armory AR-15 Classic LPK w/o Fire Control Group - 1785

    Rating:
    89%
    (62)
    $29.99
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  9. PSA 7.5" Pistol-length 300AAC 1/8 Phosphate 7" Lightweight M-Lok MFT Battlelink Pistol Kit

    PSA 7.5" Pistol-length 300AAC 1/8 Phosphate 7" Lightweight M-Lok MFT Battlelink Pistol Kit

    Out of Stock
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  10. PSA JAKL Rifle Lower Build Kit MOE SL EPT F5 Stock, Black

    PSA JAKL Rifle Lower Build Kit MOE SL EPT F5 Stock, Black

    Rating:
    90%
    (8)
    Out of Stock
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  11. PSA JAKL Rifle Lower Build Kit MOE SL EPT F5 Stock, ODG

    PSA JAKL Rifle Lower Build Kit MOE SL EPT F5 Stock, ODG

    Out of Stock
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  12. PSA 16" 300AAC Blackout Pistol-Length 1/8 Nitride 13.5" Lightweight M-Lok Freedom Rifle Kit

    PSA 16" 300AAC Blackout Pistol-Length 1/8 Nitride 13.5" Lightweight M-Lok Freedom Rifle Kit

    Out of Stock
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  13. PSA MOE EPT Pistol Lower Build Kit With SB Tactical PDW Brace, FDE

    PSA MOE EPT Pistol Lower Build Kit With SB Tactical PDW Brace, FDE

    Out of Stock
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  14. PSA 7" 300AAC 1/7 Phosphate 6" M-Lok MFT EPT Battlelink Pistol Kit

    PSA 7" 300AAC 1/7 Phosphate 6" M-Lok MFT EPT Battlelink Pistol Kit

    Rating:
    94%
    (7)
    Out of Stock
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  15. PSA Classic Lower Parts Kit, Gray

    PSA Classic Lower Parts Kit, Gray

    Rating:
    100%
    (19)
    Out of Stock
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  16. PSA AR15 MOE SSA-E Lower Build Kit, Black

    PSA AR15 MOE SSA-E Lower Build Kit, Black

    Rating:
    86%
    (7)
    Out of Stock
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  17. PSA Shockwave MOE EPT Pistol Lower Build Kit, Flat Dark Earth

    PSA Shockwave MOE EPT Pistol Lower Build Kit, Flat Dark Earth

    Rating:
    95%
    (42)
    Out of Stock
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  18. PSA MOE+ EPT LPK - Flat Dark Earth - 516444912

    PSA MOE+ EPT LPK - Flat Dark Earth - 516444912

    Rating:
    96%
    (11)
    Out of Stock
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  19. MOE AR-15 lower build kit in black

    PSA AR-15 MOE+ Lower Build Kit - Black

    Rating:
    96%
    (180)
    Out of Stock
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  20. Olive Drab Green MOE AR-15 Lower Build Kit

    PSA Shockwave MOE EPT Pistol Lower Build Kit, Olive Drab Green

    Rating:
    99%
    (29)
    Out of Stock
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  21. Palmetto MOE AR-15 Lower Build Kit in Black

    Palmetto State Armory Magpul MOE Lower Build Kit, Black

    Rating:
    89%
    (14)
    Out of Stock
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  22. AR-15 Lower Build Kit with SB Tactical Brace

    PSA MOE+ EPT Pistol Lower Build Kit With SB Tactical PDW Brace, Flat Dark Earth - 5165447769

    Rating:
    80%
    (2)
    Out of Stock
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  23. PSA Shockwave MOE Pistol Brace AR-15 Lower Build Kit with EPT

    PSA Shockwave MOE EPT Pistol Lower Build Kit With Vortex SPARC Red Dot Optic

    Rating:
    98%
    (19)
    Out of Stock
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  24. PSA MOE LPK w/ Geissele Super Tricon Trigger Black - 516445092

    PSA MOE LPK w/ Geissele Super Tricon Trigger Black - 516445092

    Out of Stock
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Items 49-72 of 115

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