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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 1897-1920 of 5570

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  1. Toolcraft Non-Logo'd Left Handed 5.56 Nitride MPI Full-Auto Bolt Carrier Group - 5165491278

    Toolcraft Non-Logo'd Left Handed 5.56 Nitride MPI Full-Auto Bolt Carrier Group - 5165491278

    Rating:
    90%
    (22)
    $199.99
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  2. Stern Defense Melonite .40S&W Complete Bolt Carrier Group - SD BU40

    Stern Defense Melonite .40S&W Complete Bolt Carrier Group - SD BU40

    Rating:
    80%
    (1)
    $186.99
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  3. Stern Defense .45 ACP Complete Bolt Carrier Group, Melonite

    Stern Defense .45 ACP Complete Bolt Carrier Group, Melonite

    Regular Price $167.99 Special Price $150.99
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  4. Stern Defense 9mm Flash Can, Black - SD HBC9

    Stern Defense 9mm Flash Can, Black - SD HBC9

    $36.99
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  5. Stern Defense MOD5 MLOK 16.1" 45 ACP AR-15 Complete Upper - 015-SD15INCHMOD5MLOK16.1INCHBARREL45ACP-KK

    Stern Defense MOD5 MLOK 16.1" 45 ACP AR-15 Complete Upper

    Regular Price $659.99 Special Price $593.99
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  6. Stern Defense 9mm Complete Bolt Carrier Group, Mag-Phosphate Finish - SD BU9

    Stern Defense 9mm Complete Bolt Carrier Group, Mag-Phosphate Finish - SD BU9

    Rating:
    100%
    (4)
    Regular Price $163.99 Special Price $146.99
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  7. Bravo Company Mfg Mid Length KeyMod Rail, Black - PKMR-MID-BLK

    Bravo Company Mfg Mid Length KeyMod Rail, Black - PKMR-MID-BLK

    Rating:
    80%
    (2)
    Regular Price $42.99 Special Price $37.99
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  8. CMMG .300 Blackout 8" Medium Taper Barrel Sub-Assembly, Salt Bath Nitride Black - 30D810A

    CMMG .300 Blackout 8" Medium Taper Barrel Sub-Assembly, Salt Bath Nitride Black - 30D810A

    Regular Price $188.99 Special Price $169.99
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  9. Bravo Company Mfg 4150 Steel Flash Hider Suppressor, 1/2-28 - A2X

    Bravo Company Mfg 4150 Steel Flash Hider Suppressor, 1/2-28 - A2X

    Rating:
    100%
    (1)
    Regular Price $38.99 Special Price $34.99
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  10. CMMG .300 Blackout 16.1" Medium Taper Barrel Sub-Assembly, Salt Bath Nitride Black - 30D120A

    CMMG .300 Blackout 16.1" Medium Taper Barrel Sub-Assembly, Salt Bath Nitride Black - 30D120A

    Rating:
    100%
    (1)
    Regular Price $225.99 Special Price $202.99
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  11. CMMG .300 Blackout 16.1" Multi Role Barrel Sub-Assembly, Salt Bath Nitride Black - 30DF80A

    CMMG .300 Blackout 16.1" Multi Role Barrel Sub-Assembly, Salt Bath Nitride Black - 30DF80A

    Regular Price $225.99 Special Price $202.99
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  12. CMMG .223 Rem/5.56 16.1" Medium Taper Barrel Sub-Assembly, Salt Bath Nitride Black - 55DC70A

    CMMG .223 Rem/5.56 16.1" Medium Taper Barrel Sub-Assembly, Salt Bath Nitride Black - 55DC70A

    Regular Price $197.99 Special Price $177.99
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  13. CMMG .223 Rem/5.56 16.1" M4 Barrel Sub-Assembly, Salt Bath Nitride Black - 55DE10A

    CMMG .223 Rem/5.56 16.1" M4 Barrel Sub-Assembly, Salt Bath Nitride Black - 55DE10A

    Regular Price $217.99 Special Price $159.99
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  14. Smith & Wesson Complete Upper Parts Kit, Black - 110116

    Smith & Wesson Complete Upper Parts Kit, Black - 110116

    Rating:
    100%
    (3)
    Regular Price $26.99 Special Price $23.69
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  15. CMMG 6061 T6 Aluminum Barrel Nut, 9" L - 55DA296

    CMMG 6061 T6 Aluminum Barrel Nut, 9" L - 55DA296

    Regular Price $11.99 Special Price $10.69
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  16. CMMG Survival Parts Kit - 55AFFB4

    CMMG Survival Parts Kit - 55AFFB4

    Rating:
    100%
    (2)
    Regular Price $64.99 Special Price $58.49
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  17. CMMG Bolt Rehab Parts Kit, Black - 55AFF68

    CMMG Bolt Rehab Parts Kit, Black - 55AFF68

    Rating:
    88%
    (8)
    Regular Price $39.99 Special Price $35.99
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  18. CMMG Enhanced Field Repair Parts Kit - 55AFF62

    CMMG Enhanced Field Repair Parts Kit - 55AFF62

    Rating:
    100%
    (3)
    Regular Price $38.99 Special Price $34.29
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  19. CMMG Upper Pins and Springs Parts Kit - 55AFF2F

    CMMG Upper Pins and Springs Parts Kit - 55AFF2F

    Rating:
    95%
    (4)
    Regular Price $13.99 Special Price $12.39
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  20. CMMG AR Gas Block .936 Low Profile

    CMMG AR Gas Block .936 Low Profile

    Rating:
    90%
    (2)
    Regular Price $39.99 Special Price $35.89
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  21. CMMG AR Gas Block .625 Low Profile - 55DA3AC

    CMMG AR Gas Block .625 Low Profile - 55DA3AC

    Regular Price $39.99 Special Price $35.89
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  22. CMMG .308 Win/7.62 Bolt Carrier Group, Black - 38BA423

    CMMG .308 Win/7.62 Bolt Carrier Group, Black - 38BA423

    Regular Price $314.99 Special Price $282.99
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  23. CMMG 5.56 Complete Bolt Carrier Group, Black - 55BA419

    CMMG 5.56 Complete Bolt Carrier Group, Black - 55BA419

    Regular Price $186.99 Special Price $167.99
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  24. CMMG Handguard Slip Ring Kit for AR-15, M16, and M4 Style Rifles, Black - 55DA2CF

    CMMG Handguard Slip Ring Kit for AR-15, M16, and M4 Style Rifles, Black - 55DA2CF

    Rating:
    100%
    (2)
    Regular Price $14.99 Special Price $13.49
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Items 1897-1920 of 5570

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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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