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AR-15 Upper Parts

Browse Palmetto State Armory's vast selection of AR-15 upper parts to build your upper from the ground up or to upgrade your AR-15 upper. With everything from bolt carrier groups, AR-15 charging handles, muzzle accessories, rails, and much more, you are sure to find what you need at Palmetto State Armory. All Palmetto State Armory branded upper parts and lower parts are American-made and feature our full lifetime warranty.

Handguards & Rails

Handguards & Rails
Stripped Upper Receivers

Stripped Upper Receivers
Barrels & Barrel Assemblies

Barrels & Barrel Assemblies
Bolt Carrier Groups

Bolt Carrier Groups
Charging Handles

Charging Handles
Dust Covers

Dust Covers
Firing Pins

Firing Pins
Foregrips

Foregrips

Forward Assist

Forward Assist
Gas Blocks

Gas Blocks
Gas Tubes

Gas Tubes
Individual Upper Parts

Individual Upper Parts
Muzzle Accessories

Muzzle Accessories
Piston Conversion Kits & Parts

Piston Conversion Kits & Parts
Carry Handles

Carry Handles

Upper Repair Kits

Upper Repair Kits
Upper Accessories

Upper Accessories
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Items 2473-2496 of 5570

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  1. Midwest Industries Heavy Duty Quick Detach Front Sling Adapter for Rails ‒ MCTAR-08HD

    Midwest Industries Heavy Duty Quick Detach Front Sling Adapter for Rails ‒ MCTAR-08HD

    Regular Price $44.99 Special Price $39.99
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  2. AR-15 Upper Parts

    Troy AR Sight Adjustment Tool for Front M4/HK Style BattleSights - ST00-ADJ-000T-00

    Rating:
    100%
    (3)
    Regular Price $13.99 Special Price $11.89
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  3. AR-15 Upper Receiver Parts

    Troy AR-15 Gas Block .750 Low-Profile Gas Block 2"

    Rating:
    100%
    (4)
    Regular Price $78.99 Special Price $70.99
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  4. AR-15 Upper Parts Troy Low-Profile Gas Block .750 – SGAS-A4L-00BT-00

    Troy AR-15 Gas Block .750 Low-Profile - SGAS-A4L-00BT-00

    Rating:
    100%
    (3)
    Regular Price $47.99 Special Price $42.99
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  5. AR-15 Upper Receiver Parts Troy Low-Profile Gas Block, .936

    Troy AR Gas Block .936 Low-Profile - SGAS-936-00BT-00

    Regular Price $56.99 Special Price $50.69
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  6. AR-15 Upper Receiver Parts Troy Low-Profile Gas Block, .875

    Troy AR Gas Block .875 Low Profile - SGAS-875-00BT-00

    Regular Price $55.99 Special Price $50.29
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  7. Troy S.S. Q.D. Swivel Sling Mount - SMOU-SSQ-00BT-00

    Troy S.S. Q.D. Swivel Sling Mount - SMOU-SSQ-00BT-00

    Rating:
    100%
    (1)
    Regular Price $20.99 Special Price $18.49
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  8. TROY OEM M4 Sling Mount in Black

    Troy OEM M4 Sling Mount Black - SMOU-M4S-00BT-00

    Rating:
    80%
    (1)
    Regular Price $59.99 Special Price $53.89
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  9. Troy Claymore Muzzle Brake 7.62mm 5/8" x 24 Black - SBRA-CLM-06BT-00

    Troy Claymore Muzzle Brake 7.62mm 5/8" x 24 Black - SBRA-CLM-06BT-00

    Rating:
    100%
    (3)
    Regular Price $73.99 Special Price $65.99
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  10. Troy Alpha Battlerail No Sight 11" Black

    Troy Alpha BattleRail No Sight 11", Black – STRX-AL1-11BT-01

    Regular Price $218.99 Special Price $199.99
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  11. Troy Alpha Rail No Sight 9", Black

    Troy Alpha BattleRail No Sight 9", Black – STRX-AL1-90BT-01

    Rating:
    100%
    (1)
    Regular Price $196.99 Special Price $176.99
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  12. Troy Polymer CQB Vertical Grip - Black SGRI-VRT-00BT-00

    Troy Polymer CQB Vertical Grip - Black SGRI-VRT-00BT-00

    Regular Price $29.99 Special Price $26.89
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  13. Troy Pro Grade Rifle Sling Adapter - SMOU-PGR-00BT-00

    Troy Professional Grade Rifle Sling Adapter Black - SMOU-PGR-00BT-00

    Rating:
    100%
    (4)
    Regular Price $64.99 Special Price $58.49
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  14. KNS Precision AR-15 Perma-Pin Firing Pin Retainer

    KNS Precision AR-15 Firing Pin Retaining Pin - PERMA

    Rating:
    93%
    (12)
    Regular Price $12.99 Special Price $10.99
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  15. CMMG .22 Survival Spring Kit 22BA6FE

    CMMG .22 Survival Spring Kit 22BA6FE

    Regular Price $12.99 Special Price $11.69
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  16. CMMG .22 Forward Assist Adapter 22BA4B1

    CMMG .22 Forward Assist Adapter 22BA4B1

    Rating:
    70%
    (6)
    Regular Price $20.99 Special Price $18.29
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  17. Caldwell Bipod Adaptor for Picatinney Rail 535423

    Caldwell Bipod Adaptor for Picatinney Rail 535423

    Rating:
    70%
    (2)
    Regular Price $21.99 Special Price $19.09
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  18. PSA AR-15 Gas Tube for Pistol

    PSA AR15 Gas Tube - Pistol - 1671

    Rating:
    100%
    (4)
    $11.99
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  19. Troy Alpha Rail No Sight 15", Black

    Troy Alpha BattleRail No Sight 15", Black – STRX-AL1-15BT-01

    Regular Price $228.99 Special Price $205.99
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  20. PSA 5.56 Premium Full Auto Bolt Carrier Group

    PSA 5.56 Premium Full Auto Bolt Carrier Group with Logo - 8779

    Rating:
    95%
    (1512)
    $119.99
    Add to Wish List Add to Compare
  21. AR-15 Upper Receiver Parts

    PSA Classic Rifle Handguard - Black - 23814

    Rating:
    70%
    (2)
    $19.99
    Add to Wish List Add to Compare
  22. PSA AR-15 Rifle Gas Tube

    PSA AR15 Gas Tube - Rifle - 1663

    Rating:
    91%
    (21)
    $12.99
    Add to Wish List Add to Compare
  23. PSA AR-15 Gas Tube Mid Length

    PSA AR15 Gas Tube - Mid-Length

    Rating:
    88%
    (16)
    $12.99
    Add to Wish List Add to Compare
  24. PSA AR-15 Gas Tube Carbine Length

    PSA AR15 Gas Tube - Carbine

    Rating:
    87%
    (21)
    $12.99
    Add to Wish List Add to Compare
View as Grid View List View

Items 2473-2496 of 5570

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Shopping Options
Category
  1. Handguards & Rails 1532
  2. Stripped Upper Receivers 146
  3. Barrels & Barrel Assemblies 653
  4. Bolt Carrier Groups 356
  5. Charging Handles 301
  6. Dust Covers 119
  7. Firing Pins 43
  8. Foregrips 253
  9. Forward Assist 49
  10. Gas Blocks 176
  11. Gas Tubes 136
  12. Individual Upper Parts 1426
  13. Muzzle Accessories 456
  14. Piston Conversion Kits & Parts 3
  15. Carry Handles 12
  16. Upper Repair Kits 17
  17. Upper Accessories 75
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