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AR-15 Lower Build Kits & Parts Kits

Build your rifle with confidence using premium AR-15 lower build kits and parts kits from Palmetto State Armory. Each kit includes the essential components needed to complete your lower receiver, offering quality, compatibility, and reliability you can trust. Whether upgrading or starting a new build, shop our wide selection of AR-15 lower parts kits today for top performance at great prices. Customers are responsible for ensuring that when assembling kits, they must adhere to all Local, State, and Federal laws.

AR-15 Kits

AR-15 Kits
Lowers

Lowers
Lower Build Kits

Lower Build Kits
Lower Parts Kits

Lower Parts Kits
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  1. PSA SBA3 MOE Lower Build Kit, Flat Dark Earth - 5165449175

    PSA SBA3 MOE Lower Build Kit, Flat Dark Earth - 5165449175

    Out of Stock
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  2. MOE SBA3 Pistol Brace AR-15 Lower Build Kit

    PSA AR-15 MOE SBA3 Lower Build Kit - Flat Dark Earth

    Rating:
    96%
    (208)
    Out of Stock
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  3. AR-15 Lower Build Kit in Flat Dark Earth

    PSA Classic Lower Build Kit, Flat Dark Earth - 5165449781

    Rating:
    94%
    (96)
    Out of Stock
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  4. New Frontier Armory AR-10 Lower Parts Kit -LPK-308

    New Frontier Armory AR-10 Lower Parts Kit -LPK-308

    Rating:
    20%
    (1)
    Out of Stock
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  5. ar-15 lower parts kit

    New Frontier Armory AR-15 Lightweight Polymer Lower Parts Kit - LPK-LW

    Rating:
    20%
    (2)
    Out of Stock
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  6. PSA 9mm SBA3 MOE EPT Pistol Lower Build Kit, Black

    PSA 9mm SBA3 MOE EPT Pistol Lower Build Kit, Black

    Rating:
    92%
    (48)
    Out of Stock
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  7. PSA AR-15 Pistol Lower Build Kit

    PSA Classic Pistol Lower Build Kit With Double Loop Latch Plate

    Rating:
    85%
    (27)
    Out of Stock
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  8. psa moe sba3 lower build kit in black

    PSA MOE SBA3 Lower Build Kit, Black

    Rating:
    97%
    (601)
    Out of Stock
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  9. Flat Dark Earth SBA3 AR-15 Lower Build Kit

    PSA SBA3 MOE EPT Pistol Lower Build Kit, Flat Dark Earth

    Rating:
    94%
    (185)
    Out of Stock
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  10. PSA MOE AR-15 lower build kit in olive drab green

    PSA MOE EPT Lower Build Kit, Olive Drab Green

    Rating:
    97%
    (93)
    Out of Stock
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  11. psa sba4 moe ept pistol lower build kit black

    PSA SBA3 MOE EPT Pistol Lower Build Kit, Black

    Rating:
    95%
    (354)
    Out of Stock
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  12. Taccom AR-9 PCC Feed Ramp for Glock-Style 9mm Lower Receivers

    Taccom AR-9 PCC Feed Ramp for Glock-style 9mm Lower Receivers - 163

    Rating:
    73%
    (8)
    Out of Stock
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  13. AR-15 lower build kit with SB tactical brace

    PSA MOE Pistol Lower Build Kit with SB Tactical SOB Pistol Brace, Flat Dark Earth - 5165448240

    Rating:
    83%
    (7)
    Out of Stock
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  14. PSA Pistol AR-15 Lower Build Kit with an Adjustable SB Tactical Brace in Black

    PSA Pistol Lower Build Kit With Adjustable SB Tactical Brace, Black - 5165448118

    Rating:
    93%
    (126)
    Out of Stock
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  15. AR-15 Lower Build Kit with Black Pistol Brace

    PSA Classic Pistol Lower Build Kit with SB Tactical SOB Pistol Brace, Black - 5165447976

    Rating:
    92%
    (44)
    Out of Stock
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  16. psa moe ept pistol lower build kit with sb tactical pdw brace in black

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

    Rating:
    96%
    (346)
    Out of Stock
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  17. AR- 15 Pistol Lower Build Kit in Black

    PSA MOE Pistol EPT Lower Build Kit - Black

    Rating:
    89%
    (22)
    Out of Stock
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  18. magpul lower parts kit

    PSA AR-15 EPT MOE+ Lower Parts Kit

    Rating:
    94%
    (30)
    Out of Stock
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  19. Magpul AR-15 lower build kit without FCG

    PSA MOE ACS-L Lower Build Kit w/out FCG - Black

    Rating:
    98%
    (29)
    Out of Stock
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  20. PSA AR-15 Lower Build Kit with Fire Control Group

    PSA AR15 MOE Lower Build Kit without Fire Control Group, Black

    Rating:
    94%
    (68)
    Out of Stock
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  21. PSA EPT MOE AR-15 Lower Build Kit

    PSA MOE EPT Lower Build Kit, Black

    Rating:
    96%
    (420)
    Out of Stock
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  22. AR-15 Magpul Lower Parts Kit

    PSA AR-15 EPT MOE Lower Parts Kit

    Rating:
    98%
    (96)
    Out of Stock
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  23. AR-15 Classic Lower Parts Kit

    PSA AR-15 EPT Classic Lower Parts Kit - 7778133

    Rating:
    94%
    (45)
    Out of Stock
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  24. magpul lower parts kit

    PSA AR-15 EPT MOE Lower Parts Kit with Ambi Safety

    Rating:
    94%
    (66)
    Out of Stock
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  2. Lower Parts Kits 191
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