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AR-15 Lower Parts

Please browse our selection of individual parts for your AR-15. We stock lower parts such as buffer tube assemblies, enhanced parts, and assembly parts for lower receivers. Choose from some top-selling brands like Palmetto State Armory, Armaspec, PSA Custom, Timber Creek, and much more.

Buffer Tube Assembly Parts

Buffer Tube Assembly Parts
Enhanced Parts

Enhanced Parts
Lower Receiver Assembly Parts

Lower Receiver Assembly Parts
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Items 241-264 of 1828

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  1. CMMG Ambidextrous Single-Point Receiver End Plate, Black

    CMMG Ambidextrous Single-Point Receiver End Plate, Black

    Rating:
    93%
    (9)
    Regular Price $7.99 Special Price $7.09
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  2. CMC 8-Position Extended Buffer Tube Assembly Kit, Black

    CMC 8-Position Extended Buffer Tube Assembly Kit, Black

    Rating:
    80%
    (3)
    Regular Price $103.99 Special Price $93.99
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  3. Timber Creek Aero AR-10 Takedown Pin Set, Black

    Timber Creek Aero AR-10 Takedown Pin Set, Black

    Regular Price $20.99 Special Price $18.99
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  4. Timber Creek Aero AR-10 Takedown Pin Set, Burnt Bronze

    Timber Creek Aero AR-10 Takedown Pin Set, Burnt Bronze

    Rating:
    80%
    (1)
    Regular Price $20.99 Special Price $18.99
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  5. Timber Creek AR-10 Takedown Pin Set, Tungsten

    Timber Creek AR-10 Takedown Pin Set, Tungsten

    Regular Price $27.99 Special Price $24.99
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  6. Timber Creek AR-10 Takedown Pin Set, OD Green

    Timber Creek AR-10 Takedown Pin Set, OD Green

    Regular Price $27.99 Special Price $24.99
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  7. Timber Creek AR-10 Takedown Pin Set, Black

    Timber Creek AR-10 Takedown Pin Set, Black

    Regular Price $27.99 Special Price $24.99
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  8. Timber Creek AR-10 Takedown Pin Set, Burnt Bronze

    Timber Creek AR-10 Takedown Pin Set, Burnt Bronze

    Rating:
    100%
    (1)
    Regular Price $27.99 Special Price $24.99
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  9. CMMG Detent and Pivot/Takedown Pin

    CMMG Detent and Pivot/Takedown Pin

    Rating:
    100%
    (1)
    Regular Price $10.99 Special Price $9.19
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  10. CMMG Buffer Retainer Parts Kit

    CMMG Buffer Retainer Parts Kit

    Rating:
    100%
    (8)
    Regular Price $3.99 Special Price $2.79
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  11. Timber Creek Greyman Quick Disconnect End Plate, Desert

    Timber Creek Greyman Quick Disconnect End Plate, Desert

    Regular Price $20.99 Special Price $18.99
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  12. Timber Creek Castle Nut, Black

    Timber Creek Castle Nut, Black

    Rating:
    100%
    (1)
    Regular Price $5.99 Special Price $4.99
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  13. Timber Creek Greyman Takedown Pin Set, Forest

    Timber Creek Greyman Takedown Pin Set, Forest

    Regular Price $20.99 Special Price $18.89
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  14. Timber Creek Greyman Ambidextrous Safety Selector, Desert

    Timber Creek Greyman Ambidextrous Safety Selector, Desert

    Rating:
    100%
    (3)
    Regular Price $45.99 Special Price $40.99
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  15. Samson Picatinny Side Folding Stock Adapter Fits Sig Sauer MCX/MPX, Flat Dark Earth

    Samson Picatinny Side Folding Stock Adapter Fits Sig Sauer MCX/MPX, Flat Dark Earth

    Regular Price $119.99 Special Price $108.99
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  16. Samson Picatinny Side Folding Stock Adapter Fits Sig Sauer MCX/MPX, Black

    Samson Picatinny Side Folding Stock Adapter Fits Sig Sauer MCX/MPX, Black

    Regular Price $123.99 Special Price $110.99
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  17. Samson B.R.E Bufferless Receiver Extension, Flat Dark Earth

    Samson B.R.E Bufferless Receiver Extension, Flat Dark Earth

    Regular Price $215.99 Special Price $193.99
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  18. Sig Sauer 6-Position Low Profile Folding Stock Adapter Fits Sig Sauer MCX/MPX, Coyote Brown

    Sig Sauer 6-Position Low Profile Folding Stock Adapter Fits Sig Sauer MCX/MPX, Coyote Brown

    Regular Price $254.99 Special Price $228.99
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  19. Rise Armament Iconic Two-Stage Trigger- T22-GRY

    Rise Armament Iconic Two-Stage Trigger- T22-GRY

    Rating:
    100%
    (1)
    Regular Price $289.00 Special Price $231.99
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  20. Reptilia Picker Ambi Safety Selector, 75/90 degree, FDE - 100-314

    Reptilia Picker Ambi Safety Selector, 75/90 degree, FDE - 100-314

    Regular Price $75.99 Special Price $67.99
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  21. Reptilia Picker Ambi Safety Selector 75/90 degree, Black - 100-307

    Reptilia Picker Ambi Safety Selector 75/90 degree, Black - 100-307

    Regular Price $75.99 Special Price $67.99
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  22. Rise Armament Ambi Safety Selector - RA-6423

    Rise Armament Ambi Safety Selector - RA-6423

    Rating:
    40%
    (1)
    Regular Price $67.99 Special Price $60.99
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  23. Battle Arms Development Enhanced Pivot and Takedown Pin Set

    Battle Arms Development Enhanced Pivot and Takedown Pin Set

    Rating:
    40%
    (1)
    Regular Price $33.99 Special Price $29.99
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  24. Battle Arms Development Investment Cast Enhanced Bolt Catch, Black

    Battle Arms Development Investment Cast Enhanced Bolt Catch, Black

    Rating:
    100%
    (2)
    Regular Price $15.99 Special Price $13.99
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Items 241-264 of 1828

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  1. Buffer Tube Assembly Parts 493
  2. Enhanced Parts 398
  3. Lower Receiver Assembly Parts 896
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