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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

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.338 ARC

.338 ARC
Magazines

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Pistols

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Kits

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Suppressors

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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 2665-2688 of 16454

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  1. LBE Unlimited Barrel 5.56x45mm 14.50" - Long-Range Precision with Durable Black - BAR145M

    LBE Unlimited Barrel 5.56x45mm 14.50" - Long-Range Precision with Durable Black - BAR145M

    Regular Price $269.99 Special Price $256.99
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  2. LBE Unlimited Extractor Parts Replacement Kit, Black - High-Quality, Durable Replacement - AREXTKT

    LBE Unlimited Extractor Parts Replacement Kit, Black - High-Quality, Durable Replacement - AREXTKT

    Regular Price $16.99 Special Price $15.09
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  3. SB Tactical SBA5 5-Position Adjustable Pistol Stabilizing Brace Flat Dark Earth - For Superior Pistol Stability and Control - SBA5X-02-SB

    SB Tactical SBA5 5-Position Adjustable Pistol Stabilizing Brace Flat Dark Earth - For Superior Pistol Stability and Control - SBA5X-02-SB

    Rating:
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    (17)
    $99.99 $99.99
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  4. SB Tactical SBA4 5-Position Adjustable Pistol Stabilizing Brace OD Green - Robust Brace for Enhanced Pistol Stability and Tactical Use - SBA4X04SB

    SB Tactical SBA4 5-Position Adjustable Pistol Stabilizing Brace OD Green - Robust Brace for Enhanced Pistol Stability and Tactical Use - SBA4X04SB

    Rating:
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    Regular Price $112.99 Special Price $100.99
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  5. SB Tactical SBA3 5-Position Adjustable Pistol Stabilizing Brace OD Green - Durable Stabilizing Brace for Enhanced Pistol Performance - SBA3X04SB

    SB Tactical SBA3 5-Position Adjustable Pistol Stabilizing Brace OD Green - Durable Stabilizing Brace for Enhanced Pistol Performance - SBA3X04SB

    Rating:
    100%
    (4)
    Regular Price $112.99 Special Price $100.99
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  6. SB Tactical SBA3 5-Position Adjustable Pistol Stabilizing Brace Flat Dark Earth - For Enhanced Pistol Stability and Control - SBA3X02SB

    SB Tactical SBA3 5-Position Adjustable Pistol Stabilizing Brace Flat Dark Earth - For Enhanced Pistol Stability and Control - SBA3X02SB

    Rating:
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    (7)
    Regular Price $112.99 Special Price $100.99
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  7. Sons of Liberty Gun Works Quick Detach M-LOK Sling Socket, Black - Versatile and Secure - 4140SOCKET

    Sons of Liberty Gun Works Quick Detach M-LOK Sling Socket, Black - Versatile and Secure - 4140SOCKET

    Regular Price $32.99 Special Price $28.99
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  8. MDT ORYX Savage 110 Rifle Chassis System in OD Green - Premium Chassis for Superior Performance and Customization - 106263-ODG

    MDT ORYX Savage 110 Rifle Chassis System in OD Green - Premium Chassis for Superior Performance and Customization - 106263-ODG

    Regular Price $477.99 Special Price $429.99
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  9. MDT Baker Wing 9" x 1" x 1" for ACC Premier/Elite in Black - Precision Wing for Enhanced Stability and Performance - 106385-BLK

    MDT Baker Wing 9" x 1" x 1" for ACC Premier/Elite in Black - Precision Wing for Enhanced Stability and Performance - 106385-BLK

    Regular Price $221.99 Special Price $199.99
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  10. MDT Premier Vertical Foregrip, Black - Ergonomic and Comfortable for Enhanced Control - 105174-BLK

    MDT Premier Vertical Foregrip, Black - Ergonomic and Comfortable for Enhanced Control - 105174-BLK

    Rating:
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    $75.99
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  11. MDT ORYX Rifle Chassis System for Savage 110 in OD Green - Durable Chassis for Enhanced Accuracy and Tactical Versatility - 103642-ODG

    MDT ORYX Rifle Chassis System for Savage 110 in OD Green - Durable Chassis for Enhanced Accuracy and Tactical Versatility - 103642-ODG

    Regular Price $477.99 Special Price $429.99
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  12. Maxim Defense Industries CQB Roller Delayed Blowback System Buffer - Superior Performance in Close Quarters - MXM47838

    Maxim Defense Industries CQB Roller Delayed Blowback System Buffer - Superior Performance in Close Quarters - MXM47838

    Regular Price $190.99 Special Price $171.99
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  13. Maxim Defense Industries CQB Gen 7 Stock Flat Dark Earth - For Superior Tactical Performance - MXM47618

    Maxim Defense Industries CQB Gen 7 Stock Flat Dark Earth - For Superior Tactical Performance - MXM47618

    Regular Price $430.99 Special Price $387.99
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  14. Maxim Defense Industries CQB Gen 6 Buttstock Assembly Flat Dark Earth - For Enhanced Tactical Flexibility - MXM47576

    Maxim Defense Industries CQB Gen 6 Buttstock Assembly Flat Dark Earth - For Enhanced Tactical Flexibility - MXM47576

    Rating:
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    Regular Price $140.99 Special Price $126.99
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  15. Maxim Defense Industries CCS Gen 6 Stock Flat Dark Earth - For Tactical Performance and Durability - MXM47563

    Maxim Defense Industries CCS Gen 6 Stock Flat Dark Earth - For Tactical Performance and Durability - MXM47563

    $355.99
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  16. Sons of Liberty Gun Works Presscheck Barricade Stop, Black - Tactical Barricade Stop for Enhanced Shooting Stability - BARRICADE-BLK

    Sons of Liberty Gun Works Presscheck Barricade Stop, Black - Tactical Barricade Stop for Enhanced Shooting Stability - BARRICADE-BLK

    Regular Price $74.99 Special Price $66.99
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  17. Sons of Liberty Gun Works Presscheck Barricade Stop, Flat Dark Earth - Durable Tactical Stop for Better Shooting Positioning - BARRICADE-FDE

    Sons of Liberty Gun Works Presscheck Barricade Stop, Flat Dark Earth - Durable Tactical Stop for Better Shooting Positioning - BARRICADE-FDE

    Regular Price $79.99 Special Price $71.99
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  18. Skyline Lite Picatinny Rail Bi-Pod Adapter Fits Warne 7902M, Black - High-Quality and Adjustable - 7958M

    Skyline Lite Picatinny Rail Bi-Pod Adapter Fits Warne 7902M, Black - High-Quality and Adjustable - 7958M

    Regular Price $94.99 Special Price $84.99
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  19. Skyline Lite ARCA Rail Bi-Pod Adapter Fits Warne 7911M, Black - Versatile Adapter Fits Enhanced Support - 7955M

    Skyline Lite ARCA Rail Bi-Pod Adapter Fits Warne 7911M, Black - Versatile Adapter Fits Enhanced Support - 7955M

    Regular Price $94.99 Special Price $84.99
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  20. Chipmunk Adjustable Sling, Brown - Perfect for Versatile and Comfortable Carry in Tactical and Outdoor Settings - 80021

    Chipmunk Adjustable Sling, Brown - Perfect for Versatile and Comfortable Carry in Tactical and Outdoor Settings - 80021

    Regular Price $23.99 Special Price $21.59
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  21. Chipmunk Adjustable Sling, Black - Ideal for Comfortable and Secure Carry for Various Applications - 80020

    Chipmunk Adjustable Sling, Black - Ideal for Comfortable and Secure Carry for Various Applications - 80020

    Regular Price $23.99 Special Price $21.59
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  22. Sons of Liberty Gun Works Trigger - Two-Stage, Black for Enhanced Precision and Performance - L2S

    Sons of Liberty Gun Works Trigger - Two-Stage, Black for Enhanced Precision and Performance - L2S

    Regular Price $158.99 Special Price $142.99
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  23. Sons of Liberty Gun Works Angled Quick Detach Mount, Black - Secure and Adjustable - 4140ANGLEDSOCKET

    Sons of Liberty Gun Works Angled Quick Detach Mount, Black - Secure and Adjustable - 4140ANGLEDSOCKET

    Regular Price $37.99 Special Price $33.99
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  24. 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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  1. Rifles 2064
  2. Pistols 887
  3. Uppers 1360
  4. Kits 757
  5. Lower Receivers 714
  6. Parts 9222
  7. Suppressors 167
  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.