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AR-15 Rifles, Parts, Uppers & Kits

Shop AR-15 5.56 & .223 rifles, parts, uppers, & more at Palmetto State Armory. Find high-quality AR-15s, trusted brands, and expertly crafted components. Customize or build from scratch with our vast inventory of barrels, stocks, and triggers. Palmetto State Armory is your destination for the best AR-15 essentials at competitive prices.

Shop AR-15 rifles, parts, uppers, & more at Palmetto State Armory. Find high-quality guns such as AR-15 .223 rifles and AR pistols from trusted brands, and expertly crafted components. Customize or build from scratch with our vast inventory of barrels, stocks, and triggers. Palmetto State Armory is your destination for the best AR-15 essentials at competitive prices.

Shop the complete AR-15 platform at Palmetto State Armory, your destination for rifles, uppers, lowers, parts, and build kits. Whether you’re buying a factory-built rifle or assembling a custom AR-15 from the ground up, you’ll find trusted brands, proven components, and configurations for every purpose. Explore options in popular calibers like 5.56 NATO, .300 Blackout, and more. Build it your way or buy it ready to run—all at everyday low prices.

Rifles

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Uppers

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Lower Receivers

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AR-15 Parts

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Triggers

Triggers
.338 ARC

.338 ARC
Magazines

Magazines
Pistols

Pistols
Kits

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Suppressors

Suppressors
Left Handed AR-15

Left Handed AR-15
Featured Products
  1. R&D Precision AR45 Bolt Carrier Group
    R&D Precision AR45 Bolt Carrier Group
    Rating:
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    Regular Price $149.99 Special Price $49.99
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  2. Daniel Defense 5.56mm 32rd Capacity Magazine, Black – 13-072-16539-006
    Daniel Defense 5.56mm 32rd Capacity Magazine, Black – 13-072-16539-006
    Rating:
    98%
    (18)
    Regular Price $26.99 Special Price $23.99
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  3. PSA Complete Stealth Classic Lower, Wild Cat Gray
    PSA Complete Stealth Classic Lower, Wild Cat Gray
    Rating:
    98%
    (150)
    Regular Price $199.99 Special Price $119.99
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Items 2785-2808 of 16451

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  1. Sons of Liberty Gun Works Precision SPR Barrel 6mm MAX 16", Black - Superior Quality - 16PRECISIONSPR-6MAX

    Sons of Liberty Gun Works Precision SPR Barrel 6mm MAX 16", Black - Superior Quality - 16PRECISIONSPR-6MAX

    Regular Price $380.99 Special Price $342.99
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  2. Outdoor Connection Super Grip Sling - Green - Versatile Sling with Enhanced Grip and Tactical - SGSS-90406

    Outdoor Connection Super Grip Sling - Green - Versatile Sling with Enhanced Grip and Tactical - SGSS-90406

    Regular Price $22.99 Special Price $20.59
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  3. Outdoor Connection Paracord Sling 43" - Reliable Paracord Sling with Tactical Black Design - PCS-90403

    Outdoor Connection Paracord Sling 43" - Reliable Paracord Sling with Tactical Black Design - PCS-90403

    Regular Price $22.99 Special Price $20.39
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  4. Crickett Sling 23", Brown - Ideal for Comfortable and Reliable Carry for Small Firearms and Tactical Use - KSA801

    Crickett Sling 23", Brown - Ideal for Comfortable and Reliable Carry for Small Firearms and Tactical Use - KSA801

    Regular Price $23.99 Special Price $21.59
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  5. Allen Snap-On Recoil Pad Black - Easy-Install Recoil Pad for Enhanced Comfort and Effective Recoil Management - 18431

    Allen Snap-On Recoil Pad Black - Easy-Install Recoil Pad for Enhanced Comfort and Effective Recoil Management - 18431

    Rating:
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    (4)
    Regular Price $16.99 Special Price $14.99
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  6. Browning Warden Universal Sling 30.50", Charcoal - Comfort and Versatility - 122979

    Browning Warden Universal Sling 30.50", Charcoal - Comfort and Versatility - 122979

    Regular Price $32.99 Special Price $29.59
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  7. Browning Paracord Sling 31" - 36.50", Black - Versatile and Durable Sling for Secure Carry - 122967925

    Browning Paracord Sling 31" - 36.50", Black - Versatile and Durable Sling for Secure Carry - 122967925

    Regular Price $29.99 Special Price $26.69
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  8. PSA AR-15 20" 5.56 Nitride Geissele 15" Railed Upper - BCG or CH

    PSA AR-15 20" 5.56 Nitride Geissele 15" Railed Upper - BCG or CH

    Regular Price $759.99 Special Price $549.99
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  9. Samson Manufacturing AC-556 Style Front Gas Block Sight - Precision-Machined Tactical Sight for Reliable Performance - 02-00068-03

    Samson Manufacturing AC-556 Style Front Gas Block Sight - Precision-Machined Tactical Sight for Reliable Performance - 02-00068-03

    Regular Price $107.99 Special Price $96.99
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  10. Samson Manufacturing AC-556 Style Front Gas Block Sight - Durable Tactical Accessory for Precision Shooting - 02-00068-00

    Samson Manufacturing AC-556 Style Front Gas Block Sight - Durable Tactical Accessory for Precision Shooting - 02-00068-00

    Regular Price $107.99 Special Price $96.99
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  11. VISM Pro Flip-Up Sight - Rear Tactical Sight for Enhanced Precision - VMARFLR

    VISM Pro Flip-Up Sight - Rear Tactical Sight for Enhanced Precision - VMARFLR

    Regular Price $43.99 Special Price $38.99
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  12. VISM Pro Flip-Up Sight - Front Tactical Sight for Quick Deployment - VMARFLF

    VISM Pro Flip-Up Sight - Front Tactical Sight for Quick Deployment - VMARFLF

    Regular Price $43.99 Special Price $38.99
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  13. Yankee Hill Machine Flip-Up Sight Set - Front/Rear Adjustable for Tactical Use - 8027

    Yankee Hill Machine Flip-Up Sight Set - Front/Rear Adjustable for Tactical Use - 8027

    Regular Price $174.99 Special Price $157.99
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  14. American Defense Mfg AD-RECON-M Quick Detach Scope Mount 34mm Tube 1.70" - Quick-Detach for Enhanced Flexibility - AD-RECON-M-34-STD

    American Defense Mfg AD-RECON-M Quick Detach Scope Mount 34mm Tube 1.70" - Quick-Detach for Enhanced Flexibility - AD-RECON-M-34-STD

    Regular Price $272.99 Special Price $246.99
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  15. American Defense Mfg AD-RECON Quick Detach Scope Mount 34mm Tube - Rapid-Detach for Quick Optic Changes - AD-RECON-34-TAC

    American Defense Mfg AD-RECON Quick Detach Scope Mount 34mm Tube - Rapid-Detach for Quick Optic Changes - AD-RECON-34-TAC

    Regular Price $266.99 Special Price $240.99
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  16. Geissele Automatics Super Precision Red-Dot Sight Mount 1.93" Picatinny Rail - Precision and Durability - 05-543B

    Geissele Automatics Super Precision Red-Dot Sight Mount 1.93" Picatinny Rail - Precision and Durability - 05-543B

    Regular Price $171.99 Special Price $154.99
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  17. American Defense Mfg AD-DELTA-C Cantilever Scope Mount 34mm Tube 1.70" Picatinny Rail - High-Performance - AD-DELTA-C-M-34-STD

    American Defense Mfg AD-DELTA-C Cantilever Scope Mount 34mm Tube 1.70" Picatinny Rail - High-Performance - AD-DELTA-C-M-34-STD

    Regular Price $346.99 Special Price $313.99
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  18. American Defense Mfg AD-RECON-M Quick Detach Scope Mount 30mm Tube 1.64" - Quick-Detach for Fast Adjustments - AD-RECON-M-30-STD

    American Defense Mfg AD-RECON-M Quick Detach Scope Mount 30mm Tube 1.64" - Quick-Detach for Fast Adjustments - AD-RECON-M-30-STD

    Regular Price $272.99 Special Price $246.99
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  19. Unity Tactical Fast MRDS Optic Riser Mount 1.50" Picatinny Rail - Secure and Reliable - FST-MRDB

    Unity Tactical Fast MRDS Optic Riser Mount 1.50" Picatinny Rail - Secure and Reliable - FST-MRDB

    Regular Price $153.99 Special Price $138.99
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  20. Steiner P-Series 1-Piece Scope Mount 30mm Tube 1.43" Cantilever - Quick Detach Picatinny Rail Mount - 5975

    Steiner P-Series 1-Piece Scope Mount 30mm Tube 1.43" Cantilever - Quick Detach Picatinny Rail Mount - 5975

    Regular Price $198.99 Special Price $179.99
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  21. Magpul 6-Piece Wire Control Kit Polymer - Essential Wire Control Kit for Field Operations - MAG1296-ODG

    Magpul 6-Piece Wire Control Kit Polymer - Essential Wire Control Kit for Field Operations - MAG1296-ODG

    Regular Price $21.99 Special Price $18.99
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  22. Magpul 6-Piece Wire Control Kit Polymer - Durable Wire Management Kit for Tactical Gear - MAG1296-FDE

    Magpul 6-Piece Wire Control Kit Polymer - Durable Wire Management Kit for Tactical Gear - MAG1296-FDE

    Rating:
    40%
    (1)
    Regular Price $21.99 Special Price $18.99
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  23. Magpul 6-Piece Wire Control Kit Polymer - Comprehensive Wire Control Kit for Tactical Applications - MAG1296-BLK

    Magpul 6-Piece Wire Control Kit Polymer - Comprehensive Wire Control Kit for Tactical Applications - MAG1296-BLK

    Rating:
    100%
    (1)
    Regular Price $25.99 Special Price $18.99
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  24. BCM 18-Slot Picatinny Rail Optic Riser - Precision and Versatility - OR-AT-525-13X5

    BCM 18-Slot Picatinny Rail Optic Riser - Precision and Versatility - OR-AT-525-13X5

    Regular Price $122.99 Special Price $109.99
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  1. Rifles 2064
  2. Pistols 887
  3. Uppers 1360
  4. Kits 757
  5. Lower Receivers 714
  6. Parts 9222
  7. Suppressors 165
  8. Left Handed AR-15 7
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AR-15 Buyer's Guide: Build or Buy?

At Palmetto State Armory, we believe in the right to keep and bear arms—and the right to build them. One of the first choices you'll face is whether to buy a complete rifle or build one from parts.

Option 1: Buying Complete

Best for: First-time owners and those who want a "grab-and-go" solution.

Buying a Complete AR-15 ensures that all components (upper, lower, buffer system) are factory-tested to work together perfectly. It comes ready to shoot right out of the box (just add an optic!).

Option 2: Building (The PSA Way)

Best for: Customizers and those looking to save money.

By purchasing a Rifle Kit and a Stripped Lower Receiver separately, you can save 11% Federal Excise Tax (FET) and learn exactly how your rifle works. Plus, you get to choose every part, from the trigger to the barrel length.

Understanding Gas Systems: Carbine vs. Mid-Length

The gas system length determines how the rifle cycles. Choosing the right one affects recoil and reliability.

  • Carbine Length (7"): The military standard (M4). It is punchy and reliable but has a sharper recoil impulse. Standard on most 14.5" and 16" barrels.
  • Mid-Length (9"): Rapidly becoming the civilian favorite for 16" barrels. It provides a smoother recoil impulse and less wear on parts because the gas pressure drops slightly before cycling the bolt.
  • Rifle Length (12"): Used on 18" and 20" barrels (like the M16). It offers the smoothest shooting experience possible.

Common Questions About AR-15s

What is the difference between 5.56 NATO and .223 Remington?

While they look identical, 5.56 NATO is loaded to a higher pressure than .223 Remington.
The Rule: You CAN shoot .223 ammo in a 5.56 barrel safely. You generally SHOULD NOT shoot 5.56 ammo in a barrel marked strictly ".223 Remington" (unless it is a .223 Wylde). PSA's 5.56 barrels and Complete Uppers can safely shoot both.

What is a "Mil-Spec" AR-15?

"Mil-Spec" stands for Military Specification. It refers to the materials and dimensions used by the US Military (e.g., 7075-T6 Aluminum for receivers, Carpenter 158 Steel for bolts). A Mil-Spec rifle ensures that you can swap parts with almost any other standard AR-15 on the market.

Can I hunt with an AR-15?

Absolutely. The AR-15 is a "Modern Sporting Rifle." While 5.56 is excellent for varmint hunting (coyotes, hogs), many hunters prefer larger calibers. We offer AR-15s in 6.5 Grendel (great for deer) and .300 Blackout (great for hogs and suppressed hunting).

Is the AR-15 a "Common Use" rifle?

Yes. With over 20 million in circulation, the AR-15 is the most popular rifle in America. Its modularity allows it to be used for home defense, competition, hunting, and recreational target shooting.