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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 1297-1320 of 1833

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  1. Elftmann Tactical Apex Large Pin Adjustable Trigger - Curved Drop-In with Red Shoe for Optimal Precision and Tactical Style - APEX-170-R-C

    Elftmann Tactical Apex Large Pin Adjustable Trigger - Curved Drop-In with Red Shoe for Optimal Precision and Tactical Style - APEX-170-R-C

    Out of Stock
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  2. Elftmann Tactical Apex Large Pin Adjustable Trigger - Straight Drop-In with Black Shoe and Red Adjustment Knob for Superior Control - APEX-170-B-S-FA

    Elftmann Tactical Apex Large Pin Adjustable Trigger - Straight Drop-In with Black Shoe and Red Adjustment Knob for Superior Control - APEX-170-B-S-FA

    Out of Stock
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  3. Elftmann Tactical Apex Large Pin Adjustable Trigger - Curved Drop-In with Red Shoe/Adjustment Knob for Precision and Customization - APEX-170-R-C-FA

    Elftmann Tactical Apex Large Pin Adjustable Trigger - Curved Drop-In with Red Shoe/Adjustment Knob for Precision and Customization - APEX-170-R-C-FA

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    (1)
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  4. Elftmann Tactical Apex Large Pin Adjustable Trigger - Straight Drop-In with Red Shoe for Enhanced Precision and Tactical Style - APEX-170-R-S

    Elftmann Tactical Apex Large Pin Adjustable Trigger - Straight Drop-In with Red Shoe for Enhanced Precision and Tactical Style - APEX-170-R-S

    Out of Stock
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  5. Elftmann Tactical Apex Large Pin Adjustable Trigger - Straight Drop-In with Red Shoe and Adjustment Knob for Optimal Performance - APEX-170-R-S-FA

    Elftmann Tactical Apex Large Pin Adjustable Trigger - Straight Drop-In with Red Shoe and Adjustment Knob for Optimal Performance - APEX-170-R-S-FA

    Out of Stock
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  6. Elftmann Tactical Apex Adjustable Trigger - Straight Drop-In with Black Shoe and Red for Precision Performance and Tactical Style - APEX-B-S

    Elftmann Tactical Apex Adjustable Trigger - Straight Drop-In with Black Shoe and Red for Precision Performance and Tactical Style - APEX-B-S

    Out of Stock
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  7. Elftmann Tactical Apex Adjustable Trigger - Curved Drop-In with Black Shoe and Red Adjustment Knob for Superior Performance - APEX-B-C-FA

    Elftmann Tactical Apex Adjustable Trigger - Curved Drop-In with Black Shoe and Red Adjustment Knob for Superior Performance - APEX-B-C-FA

    Out of Stock
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  8. Elftmann Tactical Apex Adjustable Trigger - Straight Drop-In with Black Shoe and Red Adjustment Knob for Enhanced Precision - APEX-B-S-FA

    Elftmann Tactical Apex Adjustable Trigger - Straight Drop-In with Black Shoe and Red Adjustment Knob for Enhanced Precision - APEX-B-S-FA

    Out of Stock
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  9. Elftmann Tactical Apex Adjustable Trigger - Curved Drop-In with Red Shoe for Enhanced Precision and Style - APEX-R-C

    Elftmann Tactical Apex Adjustable Trigger - Curved Drop-In with Red Shoe for Enhanced Precision and Style - APEX-R-C

    Out of Stock
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  10. Elftmann Tactical Apex Adjustable Trigger - Curved Drop-In with Red Shoe/Adjustment Knob for Precision Performance and Custom Style - APEX-R-C-FA

    Elftmann Tactical Apex Adjustable Trigger - Curved Drop-In with Red Shoe/Adjustment Knob for Precision Performance and Custom Style - APEX-R-C-FA

    Out of Stock
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  11. Elftmann Tactical Apex Adjustable Trigger - Straight Drop-In with Red Shoe and Adjustment Knob for Precision Performance - APEX-R-S-FA

    Elftmann Tactical Apex Adjustable Trigger - Straight Drop-In with Red Shoe and Adjustment Knob for Precision Performance - APEX-R-S-FA

    Rating:
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    (1)
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  12. Elftmann Tactical Apex Adjustable Trigger - Straight Drop-In with Red Shoe for Superior Precision, Performance, and Tactical Style - APEX-R-S

    Elftmann Tactical Apex Adjustable Trigger - Straight Drop-In with Red Shoe for Superior Precision, Performance, and Tactical Style - APEX-R-S

    Out of Stock
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  13. Angstadt Arms Hydraulic Buffer Kit, Stainless Steel - Premium Buffer Kit for Enhanced Shooting Experience - AA09HBKHDP

    Angstadt Arms Hydraulic Buffer Kit, Stainless Steel - Premium Buffer Kit for Enhanced Shooting Experience - AA09HBKHDP

    Out of Stock
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  14. 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

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  15. 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

    Out of Stock
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  16. TriggerTech Two-Stage Curved Trigger - Black for Superior Accuracy and Comfortable Operation - X46TBB33NNF

    TriggerTech Two-Stage Curved Trigger - Black for Superior Accuracy and Comfortable Operation - X46TBB33NNF

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  17. TriggerTech Flat Two-Stage Trigger - Black for Precision Control and Enhanced Performance - X45SBB14TBC

    TriggerTech Flat Two-Stage Trigger - Black for Precision Control and Enhanced Performance - X45SBB14TBC

    Rating:
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    (3)
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  18. Odin Works Adjustable Buffer - Superior Recoil Management - OS-ABS-AR10-RIFLE

    Odin Works Adjustable Buffer - Superior Recoil Management - OS-ABS-AR10-RIFLE

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  19. 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

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  20. Phase 5 Rifle-Length Buffer Spring 12.75" Fits M16/M16A1/M16A2/M16A3 - Durable and Reliable Buffer Spring - RBS

    Phase 5 Rifle-Length Buffer Spring 12.75" Fits M16/M16A1/M16A2/M16A3 - Durable and Reliable Buffer Spring - RBS

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  21. Q LLC The BCC Balanced Bolt Catch, Black - Enhanced Reliability and Performance - ACCBBC

    Q LLC The BCC Balanced Bolt Catch, Black - Enhanced Reliability and Performance - ACCBBC

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  22. CMMG Pivot & Takedown Pin in Black - Durable Pin Set for Reliable AR-15 Platform Operation - 55AFF3B

    CMMG Pivot & Takedown Pin in Black - Durable Pin Set for Reliable AR-15 Platform Operation - 55AFF3B

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  23. Strike Industries FSA Dual Folding Adapter with Cheek Riser Black - For Enhanced Tactical Use - SI FSA-CHEEKRISER

    Strike Industries FSA Dual Folding Adapter with Cheek Riser Black - For Enhanced Tactical Use - SI FSA-CHEEKRISER

    Rating:
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  24. Sons of Liberty Gun Works Loyal 9 A5 9-Position Receiver Extension, Black - Adjustable and Versatile Buffer System - L9A5RE

    Sons of Liberty Gun Works Loyal 9 A5 9-Position Receiver Extension, Black - Adjustable and Versatile Buffer System - L9A5RE

    Rating:
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    (1)
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Items 1297-1320 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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