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AR-15 Individual 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.

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Items 1-24 of 177

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  1. PSA Custom Enhanced Inconel 600 AR-15 Spring Kit

    PSA Custom Enhanced Inconel 600 AR-15 Spring Kit

    Rating:
    96%
    (14)
    $19.95
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  2. PSA Custom AR-15 Lightweight Aluminum Castle Nut

    PSA Custom Lightweight Aluminum Castle Nut - 116018

    Rating:
    98%
    (14)
    $10.95
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  3. PSA Custom Lightweight Skeletonized Bolt Catch

    PSA Custom Lightweight Skeletonized Bolt Catch - 116017

    Rating:
    86%
    (12)
    $13.95
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  4. PSA Custom Anti-Walk Trigger and Hammer Pins in Stainless Steel

    PSA Custom Anti-Walk Trigger & Hammer Pins, Stainless Steel - 116000

    Rating:
    96%
    (116)
    $9.99
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  5. PSA Custom AR-15 Enhanced Titanium Trigger Pins

    PSA Custom AR Enhanced Titanium Trigger Pins - 116011

    Rating:
    98%
    (8)
    $6.95
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  6. PSA Custom AR-15 Titanium Firing Pin

    PSA Custom AR-15 Titanium Firing Pin - 116002

    Rating:
    98%
    (26)
    $14.95
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  7. AR-15 Trigger Hammer Pin (Pack of 2)

    Trigger/Hammer Pin - Pack of 2

    Rating:
    100%
    (4)
    $2.99
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  8. PSA AR-15 Takedown Pin Detent Springs (Pack of 2)

    PSA AR15 Takedown Pin Detent Springs - Pack of 2 - 516445328

    Rating:
    94%
    (11)
    $1.49
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  9. PSA AR-15 Takedown Pin Detent (Pack of 2)

    PSA AR15 Takedown Pin Detent - Pack of 2 - 516445327

    Rating:
    100%
    (14)
    $1.49
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  10. PSA AR-15 Trigger Spring

    PSA AR15 Trigger Spring - 1337

    $1.99
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  11. PSA AR15 Pistol Buffer Tube - 516444934

    PSA AR15 Pistol Buffer Tube - 516444934

    Rating:
    70%
    (4)
    $29.99
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  12. AR-15 Lower Parts Repair Kit

    PSA AR15 Builder's Kit - 77932389

    Rating:
    100%
    (4)
    Regular Price $29.99 Special Price $24.99
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  13. PSA A2 Stock Screw

    PSA A2 Stock screw- - -9349128

    Rating:
    100%
    (3)
    $3.99
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  14. PSA AR-15 Trigger Guard Roll Pin

    PSA AR15 Trigger Guard Roll Pin

    Rating:
    96%
    (8)
    $0.99
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  15. PSA 6-Position Mil-Spec Diameter Buffer Tube

    PSA 6-Position Mil-Spec Diameter Buffer Tube 7075

    Rating:
    94%
    (11)
    $29.99
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  16. PSA AR-15 A2 Buttcap Spacer

    PSA AR-15 A2 Buttcap Spacer

    Rating:
    94%
    (3)
    $1.99
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  17. PSA AR-15 Lower Parts USGI Trigger Guard

    PSA USGI Trigger Guard

    Rating:
    92%
    (9)
    $3.99
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  18. PSA AR-15 Bolt Catch Assembly

    PSA AR15 Bolt Catch Assembly

    Rating:
    94%
    (11)
    $8.49
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  19. PSA AR-15 A2 Pistol Grip Star Washer

    PSA AR15 A2 Pistol Grip Star Washer

    Rating:
    88%
    (7)
    $0.99
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  20. PSA AR-15 A2 Pistol Grip Screw

    PSA AR15 A2 Pistol Grip Screw - 1343

    Rating:
    100%
    (16)
    $0.99
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  21. PSA AR-15 Buffer Tube Detent Spring

    PSA AR15 Buffer Tube Detent Spring - 1341

    Rating:
    96%
    (19)
    $0.99
    Add to Wish List Add to Compare
  22. PSA AR-15 Buffer Tube Detent

    PSA AR15 Buffer Tube Detent - 7120

    Rating:
    90%
    (17)
    $0.99
    Add to Wish List Add to Compare
  23. PSA AR-15 Rear Take Down Pin

    PSA AR15 Rear Take Down Pin - 7286

    Rating:
    100%
    (7)
    $3.99
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  24. PSA AR-15 Front Pivot Pin

    PSA AR15 Front Pivot Pin

    Rating:
    98%
    (9)
    $3.99
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Items 1-24 of 177

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  1. Buffer Tube Assembly Parts 54
  2. Enhanced Parts 56
  3. Lower Receiver Assembly Parts 43
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