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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 313-336 of 1833

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  1. Forward Controls Design ASF-50Q Ambi Safety 50 Degree Q Levers - ASF-50Q

    Forward Controls Design ASF-50Q Ambi Safety 50 Degree Q Levers - ASF-50Q

    Rating:
    100%
    (1)
    Regular Price $100.99 Special Price $90.99
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  2. Forward Controls Design ASF-50 Ambi Safety 50 Degree Standard Levers - ASF-50

    Forward Controls Design ASF-50 Ambi Safety 50 Degree Standard Levers - ASF-50

    $90.25
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  3. Forward Controls Design ASF-90Q Ambi Safety 90 Degree Q Levers - ASF-90Q

    Forward Controls Design ASF-90Q Ambi Safety 90 Degree Q Levers - ASF-90Q

    $90.25
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  4. Forward Controls Design ASF-90 Ambi Safety 90 Degree Standard Levers - ASF-90

    Forward Controls Design ASF-90 Ambi Safety 90 Degree Standard Levers - ASF-90

    $90.25
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  5. Forward Controls Design ABC/R v3 5.56 Bolt Catch Dimpled, Rearward Biased Paddle - ABC/R v3 RB AA

    Forward Controls Design ABC/R v3 5.56 Bolt Catch Dimpled, Rearward Biased Paddle - ABC/R v3 RB AA

    Regular Price $74.99 Special Price $66.99
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  6. Forward Controls Design ABC/R v3 5.56 Bolt Catch Dimpled, Non-Offset - ABC/R v3 0B AA

    Forward Controls Design ABC/R v3 5.56 Bolt Catch Dimpled, Non-Offset - ABC/R v3 0B AA

    Rating:
    100%
    (1)
    $58.90
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  7. Forward Controls Design ABC/R v3 RB 5.56 Bolt Catch /Release Serrated, Rearward Biased Paddle - ABC/R v3 RB Serrated

    Forward Controls Design ABC/R v3 RB 5.56 Bolt Catch /Release Serrated, Rearward Biased Paddle - ABC/R v3 RB Serrated

    $58.90
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  8. Forward Controls Design ABC/R v3 FB 5.56 Bolt Catch /Release Serrated, Forward Biased Paddle - ABC/R v3 FB Serrated

    Forward Controls Design ABC/R v3 FB 5.56 Bolt Catch /Release Serrated, Forward Biased Paddle - ABC/R v3 FB Serrated

    $58.90
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  9. Forward Controls Design ABC/R v3 5.56 Bolt Catch / Release Serrated, Non-Offset - ABC/R v3 0B Serrated

    Forward Controls Design ABC/R v3 5.56 Bolt Catch / Release Serrated, Non-Offset - ABC/R v3 0B Serrated

    $58.90
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  10. Radian Weapons Extended Bolt Catch - R0323

    Radian Weapons Extended Bolt Catch - R0323

    Rating:
    100%
    (1)
    $29.99
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  11. Sylvan AR-15 Folding Stock Adapter Gen 5, Left - SA5P-L

    Sylvan AR-15 Folding Stock Adapter Gen 5, Left - SA5P-L

    Rating:
    100%
    (6)
    Regular Price $211.99 Special Price $190.99
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  12. Rise Armament Curved Trigger RA-140 SST "COME AND TAKE IT" - RA-140-CTI

    Rise Armament Curved Trigger RA-140 SST "COME AND TAKE IT" - RA-140-CTI

    Rating:
    97%
    (14)
    Regular Price $116.99 Special Price $105.99
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  13. Rise Armament Flat Trigger RA-140 SST "COME AND TAKE IT" - RA-140F-CTI

    Rise Armament Flat Trigger RA-140 SST "COME AND TAKE IT" - RA-140F-CTI

    Rating:
    100%
    (10)
    Regular Price $119.99 Special Price $108.99
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  14. Panzer M4 Tactical 5 Position Recoil w/ Buffer Tube Assemblies - M4TBRASST

    Panzer M4 Tactical 5 Position Recoil w/ Buffer Tube Assemblies - M4TBRASST

    Rating:
    90%
    (2)
    Regular Price $99.99 Special Price $69.99
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  15. Ergo Castle Nut for AR-15, Black - 4971-(B)

    Ergo Castle Nut for AR-15, Black - 4971-(B)

    Regular Price $10.99 Special Price $9.99
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  16. Tacfire Buffer Tube Castle Nut for AR-15 - Black, Essential for Assembly - MAR039

    Tacfire Buffer Tube Castle Nut for AR-15 - Black, Essential for Assembly - MAR039

    Rating:
    87%
    (15)
    Regular Price $3.99 Special Price $3.59
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  17. Strike Industries End Plate and Anti-Rotate Castle Nut for Receivers, Red - SI-AR-UL-MFEP&ACN-RED

    Strike Industries End Plate and Anti-Rotate Castle Nut for Receivers, Red - SI-AR-UL-MFEP&ACN-RED

    Rating:
    100%
    (2)
    $35.95
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  18. Strike Industries AR Mil-Spec Buffer Housing for Mil-Spec Buffers, Red - SI-AR-BH-MIL-RED

    Strike Industries AR Mil-Spec Buffer Housing for Mil-Spec Buffers, Red - SI-AR-BH-MIL-RED

    $16.95
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  19. Strike Industries AR Mil-Spec Buffer Housing for Mil-Spec Buffers, Blue - SI-AR-BH-MIL-BLU

    Strike Industries AR Mil-Spec Buffer Housing for Mil-Spec Buffers, Blue - SI-AR-BH-MIL-BLU

    Regular Price $18.99 Special Price $16.99
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  20. Timber Creek Outdoors Buffer Tube Kit for AR-15, Robin's Egg Blue - ARBTKRE

    Timber Creek Outdoors Buffer Tube Kit for AR-15, Robin's Egg Blue - ARBTKRE

    Regular Price $81.99 Special Price $72.99
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  21. Add a Splash of Color with Timber Creek Outdoors Buffer Tube Kit in Purple Anodized - ARBTKPPA

    Add a Splash of Color with Timber Creek Outdoors Buffer Tube Kit in Purple Anodized - ARBTKPPA

    Regular Price $81.99 Special Price $72.99
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  22. Timber Creek Outdoors Buffer Tube Kit for AR-15, Red - ARBTKR

    Timber Creek Outdoors Buffer Tube Kit for AR-15, Red - ARBTKR

    Regular Price $81.99 Special Price $72.99
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  23. Tacfire Short Buffer Tube System for AR-Style Pistols - Black, Compact Comfort - MAR139-C

    Tacfire Short Buffer Tube System for AR-Style Pistols - Black, Compact Comfort - MAR139-C

    Rating:
    100%
    (2)
    Regular Price $109.99 Special Price $99.99
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  24. Strike Industries TRIBUS Version 2 Castle Nut and End Plate for Buffer Tubes - SI-AR-TRIBUS-BK

    Strike Industries TRIBUS Version 2 Castle Nut and End Plate for Buffer Tubes - SI-AR-TRIBUS-BK

    Rating:
    100%
    (3)
    Regular Price $64.99 Special Price $57.99
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Items 313-336 of 1833

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  1. Buffer Tube Assembly Parts 494
  2. Enhanced Parts 380
  3. Lower Receiver Assembly Parts 897
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