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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 193-216 of 1828

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  1. Forward Controls Design CNF Billet Castle Nut, Burnt Bronze

    Forward Controls Design CNF Billet Castle Nut, Burnt Bronze

    Regular Price $32.99 Special Price $28.99
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  2. Midwest Industries Flat Trigger Single-Stage Drop-In, Black

    Midwest Industries Flat Trigger Single-Stage Drop-In, Black

    $182.99
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  3. Geissele Premium Mil-Spec Buffer Tube, Desert Dirt

    Geissele Premium Mil-Spec Buffer Tube, Desert Dirt

    Regular Price $89.99 Special Price $80.99
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  4. Geissele Premium Mil-Spec Buffer Tube, Black

    Geissele Premium Mil-Spec Buffer Tube, Black

    Rating:
    100%
    (1)
    Regular Price $73.99 Special Price $65.99
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  5. Wilson Combat 3.5 to 4 lb Semi-Auto Tactical Trigger Unit Two-Stage Drop-In

    Wilson Combat 3.5 to 4 lb Semi-Auto Tactical Trigger Unit Two-Stage Drop-In

    $167.99
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  6. Bravo Company 3-Pack Extractor Spring Upgrade Kit Fits M16A4

    Bravo Company 3-Pack Extractor Spring Upgrade Kit Fits M16A4

    Rating:
    100%
    (1)
    $10.99
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  7. Bravo Company SOPMOD Bolt Upgrade/Rebuild Kit

    Bravo Company SOPMOD Bolt Upgrade/Rebuild Kit

    Rating:
    100%
    (2)
    $25.99
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  8. Bravo Company Extractor Spring Upgrade Kit Fits M16A4

    Bravo Company Extractor Spring Upgrade Kit Fits M16A4

    Rating:
    100%
    (1)
    $4.99
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  9. Geissele Ultra Precision 5-Axis Trigger Guard, Desert Dirt

    Geissele Ultra Precision 5-Axis Trigger Guard, Desert Dirt

    Regular Price $47.99 Special Price $42.99
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  10. Geissele Ultra Precision 5-Axis Trigger Guard, Black

    Geissele Ultra Precision 5-Axis Trigger Guard, Black

    Regular Price $39.99 Special Price $35.99
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  11. Geissele Super Configurable Safety Selector, Black

    Geissele Super Configurable Safety Selector, Black

    Regular Price $83.99 Special Price $75.99
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  12. Geissele Ambidextrous Posi-Snap Safety Selector, Black

    Geissele Ambidextrous Posi-Snap Safety Selector, Black

    Rating:
    100%
    (1)
    Regular Price $45.99 Special Price $40.99
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  13. Strike Industries Lower Receiver Pin Kit, Black

    Strike Industries Lower Receiver Pin Kit, Black

    $15.99
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  14. MEAN Takedown and Pivot Pin Set, Black

    MEAN Takedown and Pivot Pin Set, Black

    Regular Price $26.99 Special Price $23.79
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  15. Odin Works Extended Magazine Release Fits Sig Sauer 716i/Sig Sauer Gen 3 MPX, Black

    Odin Works Extended Magazine Release Fits Sig Sauer 716i/Sig Sauer Gen 3 MPX, Black

    $47.99
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  16. Luth-AR Bolt Catch

    Luth-AR Bolt Catch

    Regular Price $8.99 Special Price $7.99
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  17. Luth-AR Disconnector

    Luth-AR Disconnector

    Regular Price $5.99 Special Price $4.99
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  18. Luth-AR A2 Upper Buttstock Screw Fits Luth-AR MBA-2, Black

    Luth-AR A2 Upper Buttstock Screw Fits Luth-AR MBA-2, Black

    Regular Price $6.99 Special Price $5.69
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  19. Luth-AR Cheek Rest Assembly Fits Luth-AR MBA-2/Luth-AR MBA-4, Black

    Luth-AR Cheek Rest Assembly Fits Luth-AR MBA-2/Luth-AR MBA-4, Black

    Regular Price $63.99 Special Price $56.99
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  20. Brownells Safety Selector, Black

    Brownells Safety Selector, Black

    Regular Price $14.99 Special Price $13.19
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  21. Battle Arms QRRTP Quick Release Rear Takedown Pin

    Battle Arms QRRTP Quick Release Rear Takedown Pin

    Regular Price $32.99 Special Price $28.99
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  22. James Madison Tactical Saber Trigger Single-Stage Drop-In, Black

    James Madison Tactical Saber Trigger Single-Stage Drop-In, Black

    Rating:
    80%
    (2)
    $103.99
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  23. Maxim Defense Standard Buffer and Spring, Black

    Maxim Defense Standard Buffer and Spring, Black

    $41.99
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  24. Maxim Defense Gen 2 JP Silent Captured Spring Heavy Buffer and Spring

    Maxim Defense Gen 2 JP Silent Captured Spring Heavy Buffer and Spring

    $178.99
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Items 193-216 of 1828

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  1. Buffer Tube Assembly Parts 493
  2. Enhanced Parts 397
  3. Lower Receiver Assembly Parts 896
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