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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 289-312 of 1828

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  1. Armaspec Fulcrum 45/90-deg Short/Full Throw Ambidextrous Safety Selector in Black - Versatile Safety Selector for Customization - ARM213-BLK

    Armaspec Fulcrum 45/90-deg Short/Full Throw Ambidextrous Safety Selector in Black - Versatile Safety Selector for Customization - ARM213-BLK

    Rating:
    60%
    (1)
    Regular Price $46.99 Special Price $40.99
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  2. Armaspec Fulcrum 45-deg Short Throw Ambidextrous Safety Selector in Black - Compact Safety Selector for Quick Access - ARM212-BLK

    Armaspec Fulcrum 45-deg Short Throw Ambidextrous Safety Selector in Black - Compact Safety Selector for Quick Access - ARM212-BLK

    Regular Price $40.99 Special Price $35.99
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  3. Armaspec ECB Slant Kit in Black - Premium Slanted Control Buffer Kit for AR-15/AR-10 for Optimal Performance - ARM205-BLK

    Armaspec ECB Slant Kit in Black - Premium Slanted Control Buffer Kit for AR-15/AR-10 for Optimal Performance - ARM205-BLK

    Regular Price $20.99 Special Price $17.99
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  4. Armaspec ECB Kit in Black - High-Performance Enhanced Control Buffer Kit for AR-15 and AR-10 - ARM204-BLK

    Armaspec ECB Kit in Black - High-Performance Enhanced Control Buffer Kit for AR-15 and AR-10 - ARM204-BLK

    Rating:
    100%
    (3)
    Regular Price $20.99 Special Price $17.99
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  5. Armaspec Carbine Buffer Tube Kit, Black - Reliable Performance and Durability - ARM621-C

    Armaspec Carbine Buffer Tube Kit, Black - Reliable Performance and Durability - ARM621-C

    Rating:
    100%
    (2)
    Regular Price $40.99 Special Price $35.99
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  6. Armaspec SRS Gen 4 Buffer-BB Kit, Black - Innovative Buffer Solution - ARM263-BB

    Armaspec SRS Gen 4 Buffer-BB Kit, Black - Innovative Buffer Solution - ARM263-BB

    Rating:
    100%
    (1)
    Regular Price $120.99 Special Price $108.99
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  7. Armaspec SRS Gen 4 Buffer-H Kit, Black - Heavy-Duty Buffer for Improved Recoil Control - ARM263-H

    Armaspec SRS Gen 4 Buffer-H Kit, Black - Heavy-Duty Buffer for Improved Recoil Control - ARM263-H

    Regular Price $120.99 Special Price $108.99
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  8. Armaspec SRS Gen 4 Buffer-C Kit, Black - Consistent Performance with Reliable Buffer Technology - ARM263-C

    Armaspec SRS Gen 4 Buffer-C Kit, Black - Consistent Performance with Reliable Buffer Technology - ARM263-C

    Regular Price $120.99 Special Price $108.99
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  9. Armaspec SMB Gen 3 Buffer Kit, Black - Enhance Performance with Advanced Buffer Technology - ARM268-AR10

    Armaspec SMB Gen 3 Buffer Kit, Black - Enhance Performance with Advanced Buffer Technology - ARM268-AR10

    Rating:
    100%
    (1)
    Regular Price $96.99 Special Price $86.99
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  10. Armaspec SMB Gen 3 Buffer-9 Kit, Black - High-Performance Buffer Kit - ARM268-9

    Armaspec SMB Gen 3 Buffer-9 Kit, Black - High-Performance Buffer Kit - ARM268-9

    Regular Price $96.99 Special Price $86.99
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  11. Armaspec SMB Gen 3 Buffer-H3 Kit, Black - Maximum Recoil Reduction - ARM268-H3

    Armaspec SMB Gen 3 Buffer-H3 Kit, Black - Maximum Recoil Reduction - ARM268-H3

    Rating:
    100%
    (3)
    Regular Price $96.99 Special Price $86.99
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  12. Armaspec SMB Gen 3 Buffer-H Kit, Black - Heavy-Duty Buffer Kit for Enhanced Recoil Management - ARM268-H

    Armaspec SMB Gen 3 Buffer-H Kit, Black - Heavy-Duty Buffer Kit for Enhanced Recoil Management - ARM268-H

    Regular Price $96.99 Special Price $86.99
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  13. Armaspec SMB Gen 3 Buffer-C Kit, Black - Reliable Buffer System - ARM268-C

    Armaspec SMB Gen 3 Buffer-C Kit, Black - Reliable Buffer System - ARM268-C

    Rating:
    100%
    (1)
    Regular Price $96.99 Special Price $86.99
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  14. Armaspec A5 Spacer 0.75" in Black - High-Quality Spacer for A5 Buffer Tube Systems - ARM154-RFL/A5

    Armaspec A5 Spacer 0.75" in Black - High-Quality Spacer for A5 Buffer Tube Systems - ARM154-RFL/A5

    Regular Price $8.99 Special Price $6.99
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  15. Armaspec Fixed Stock to Carbine Spacer Black - Reliable Spacer for Converting Fixed Stocks to Carbine Length for Versatile Shooting - ARM154-RFL

    Armaspec Fixed Stock to Carbine Spacer Black - Reliable Spacer for Converting Fixed Stocks to Carbine Length for Versatile Shooting - ARM154-RFL

    Rating:
    100%
    (2)
    Regular Price $8.99 Special Price $6.99
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  16. Angstadt Arms Hydraulic Buffer Kit, Stainless Steel - Advanced Buffer Kit for Smooth Performance - AA09HBKSDP

    Angstadt Arms Hydraulic Buffer Kit, Stainless Steel - Advanced Buffer Kit for Smooth Performance - AA09HBKSDP

    Regular Price $156.99 Special Price $140.99
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  17. Rise Armament Reliant Pro Trigger - Single-Stage Flat Blade in Black/Flat Dark Earth for Superior Accuracy and Tactical Style - RA-735-F-BC

    Rise Armament Reliant Pro Trigger - Single-Stage Flat Blade in Black/Flat Dark Earth for Superior Accuracy and Tactical Style - RA-735-F-BC

    Regular Price $272.99 Special Price $199.99
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  18. Rise Armament Magazine Release Button in Patriot Blue - High-Visibility and Durable Release Button for Enhanced Functionality - RA010BLU

    Rise Armament Magazine Release Button in Patriot Blue - High-Visibility and Durable Release Button for Enhanced Functionality - RA010BLU

    Regular Price $8.99 Special Price $7.99
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  19. TriggerTech Two-Stage Pro Curved Trigger - Black for Enhanced Precision, Superior Control, and Performance - AR0TRB14NNP

    TriggerTech Two-Stage Pro Curved Trigger - Black for Enhanced Precision, Superior Control, and Performance - AR0TRB14NNP

    Rating:
    100%
    (1)
    Regular Price $361.99 Special Price $325.99
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  20. Odin Works XMR Gen 3 Extended Magazine Release - Enhanced Extended Release Button for AR-15/AR-10 - ACC-XMR-3-FDE

    Odin Works XMR Gen 3 Extended Magazine Release - Enhanced Extended Release Button for AR-15/AR-10 - ACC-XMR-3-FDE

    Rating:
    100%
    (1)
    $30.99
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  21. Rise Armament Magazine Release Button in Silver - Sleek and Functional Release Button for Efficient Magazine Changes - RA010SLVR

    Rise Armament Magazine Release Button in Silver - Sleek and Functional Release Button for Efficient Magazine Changes - RA010SLVR

    Regular Price $8.99 Special Price $7.99
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  22. CMC Triggers Gold Finger Single-Stage Curved Drop-In Trigger - for Enhanced Precision, Performance and Custom Style - 91501GF

    CMC Triggers Gold Finger Single-Stage Curved Drop-In Trigger - for Enhanced Precision, Performance and Custom Style - 91501GF

    Regular Price $215.99 Special Price $193.99
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  23. Rise Armament Magazine Release Button in Red - Stylish and Reliable Release Button for Improved Firearm Performance - RA010RR

    Rise Armament Magazine Release Button in Red - Stylish and Reliable Release Button for Improved Firearm Performance - RA010RR

    Rating:
    100%
    (1)
    Regular Price $8.99 Special Price $7.99
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  24. Magpul ESK Selector - Tactical Selector for Enhanced Performance and Durability - MAG1254-FDE

    Magpul ESK Selector - Tactical Selector for Enhanced Performance and Durability - MAG1254-FDE

    Rating:
    100%
    (3)
    Regular Price $53.99 Special Price $47.99
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Items 289-312 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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