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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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AR-15 Parts

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.338 ARC

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Magazines

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Pistols

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Kits

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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:
    87%
    (14)
    Regular Price $149.99 Special Price $29.99
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  2. PSA AR-15 16" Mid-Length 5.56 NATO 1/7 Nitride 13.5" Lightweight M-Lok MOE EPT Rifle w/MBUS Sight Set
    PSA AR-15 16" Mid-Length 5.56 NATO 1/7 Nitride 13.5" Lightweight M-Lok MOE EPT Rifle w/MBUS Sight Set
    Rating:
    98%
    (556)
    Regular Price $599.99 Special Price $569.99
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  3. LWRC IC .223 Remington AR Lower, Black - ICL5B
    LWRC IC .223 Remington AR Lower, Black - ICL5B
    Rating:
    100%
    (2)
    Regular Price $866.99 Special Price $649.99
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  1. POF-USA Minuteman 5.56x45mm 13.75" AR Rifle, Tungsten - 02046

    POF-USA Minuteman 5.56x45mm 13.75" AR Rifle, Tungsten - 02046

    Regular Price $2,060.99 Special Price $1,855.99
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  2. Black Rain Ordnance Spec 15 We The People 5.56x45mm 16" AR Rifle, Red Battleworn - BRO-WTP-RB

    Black Rain Ordnance Spec 15 We The People 5.56x45mm 16" AR Rifle, Red Battleworn - BRO-WTP-RB

    Regular Price $1,582.99 Special Price $1,425.99
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  3. Great Lakes Firearms AR-10 .243 Winchester 24" AR Rifle, Black - GL10243SSBLK

    Great Lakes Firearms AR-10 .243 Winchester 24" AR Rifle, Black - GL10243SSBLK

    Regular Price $1,075.99 Special Price $968.99
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  4. VKTR Industries VK-1 5.56x45mm 16" Rifle, Black - Reliable Tactical - V-3110-0916-601

    VKTR Industries VK-1 5.56x45mm 16" Rifle, Black - Reliable Tactical - V-3110-0916-601

    Regular Price $2,441.99 Special Price $2,199.99
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  5. Black Rain Ordnance Spec 15 We The People 5.56x45mm 16" AR Rifle, Light Sand Battleworn - BRO-WTP-LSB

    Black Rain Ordnance Spec 15 We The People 5.56x45mm 16" AR Rifle, Light Sand Battleworn - BRO-WTP-LSB

    Regular Price $1,621.99 Special Price $1,460.99
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  6. VKTR Industries VK-1PW CA Compliant 5.56x45mm 13.70" Rifle, Black - High-Performance with Precision and Sleek - V-3110-0916-604-CA

    VKTR Industries VK-1PW CA Compliant 5.56x45mm 13.70" Rifle, Black - High-Performance with Precision and Sleek - V-3110-0916-604-CA

    $2,399.00
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  7. Diamondback Firearms DB15 5.56x45mm 16" AR Rifle, Black - DB1784K001

    Diamondback Firearms DB15 5.56x45mm 16" AR Rifle, Black - DB1784K001

    Regular Price $1,074.99 Special Price $967.99
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  8. VKTR Industries VK-1PW 5.56x45mm 13.70" Rifle, Flat Dark Earth - High-Performance AR Rifle, with Precision - V-3110-0916-621

    VKTR Industries VK-1PW 5.56x45mm 13.70" Rifle, Flat Dark Earth - High-Performance AR Rifle, with Precision - V-3110-0916-621

    $2,399.00
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  9. Great Lakes Firearms AR-15 .350 Legend 16" AR Rifle, Bronze - GL15350SSBRZ16

    Great Lakes Firearms AR-15 .350 Legend 16" AR Rifle, Bronze - GL15350SSBRZ16

    Regular Price $893.99 Special Price $804.99
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  10. VKTR Industries VK-1PW 5.56x45mm 13.70" Rifle, Black - Compact, High-Performance AR Rifle, with Precision and Tactical - V-3110-0916-620

    VKTR Industries VK-1PW 5.56x45mm 13.70" Rifle, Black - Compact, High-Performance AR Rifle, with Precision and Tactical - V-3110-0916-620

    $2,399.00
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  11. Black Rain Ordnance Scout .223 Remington/5.56x45mm 16" AR Rifle, Black - BRO-SCOUT-ABLK

    Black Rain Ordnance Scout .223 Remington/5.56x45mm 16" AR Rifle, Black - BRO-SCOUT-ABLK

    Regular Price $2,107.99 Special Price $1,915.99
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  12. VKTR Industries VK-1P 5.56x45mm 10.50" Pistol, Black - Versatile Tactical Pistol - V-3110-0916-617

    VKTR Industries VK-1P 5.56x45mm 10.50" Pistol, Black - Versatile Tactical Pistol - V-3110-0916-617

    $2,299.00
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  13. Geissele Super Duty Mod 1 .223 Rem/5.56x45mm 16" AR Rifle, Black - 08-395B

    Geissele Super Duty Mod 1 .223 Rem/5.56x45mm 16" AR Rifle, Black - 08-395B

    Rating:
    100%
    (1)
    Regular Price $2,359.99 Special Price $2,125.99
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  14. Black Rain Ordnance Spec 15 Carnivore .350 Legend 16" AR Rifle, Midnight Bronze - BRO-CARNIVORE-350L-MB

    Black Rain Ordnance Spec 15 Carnivore .350 Legend 16" AR Rifle, Midnight Bronze - BRO-CARNIVORE-350L-MB

    Regular Price $1,598.99 Special Price $1,452.99
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  15. Q LLC Sugar Weasel 5.56x45mm 13" Semi-Auto Tactical Pistol, Flat Dark Earth

    Q LLC Sugar Weasel 5.56x45mm 13" Semi-Auto Tactical Pistol, Flat Dark Earth

    $2,000.00
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  16. Black Rain Ordnance Spec 15 SSP 5.56x45mm 16" AR Rifle, Smoke - BRO-SSPSMK

    Black Rain Ordnance Spec 15 SSP 5.56x45mm 16" AR Rifle, Smoke - BRO-SSPSMK

    Regular Price $1,553.99 Special Price $1,399.99
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  17. Black Rain Ordnance Spec 15 We The People 5.56x45mm 16" AR Rifle, Blue Battleworn - BRO-WTP-BLB

    Black Rain Ordnance Spec 15 We The People 5.56x45mm 16" AR Rifle, Blue Battleworn - BRO-WTP-BLB

    Regular Price $1,582.99 Special Price $1,425.99
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  18. Black Rain Ordnance Spec 15 SSP .300 AAC Blackout 16" Rifle, Midnight Bronze - BRO-SSP-300BLK-MB

    Black Rain Ordnance Spec 15 SSP .300 AAC Blackout 16" Rifle, Midnight Bronze - BRO-SSP-300BLK-MB

    Regular Price $1,514.99 Special Price $1,376.99
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  19. CZ-USA Bren 2 MS Carbine .223 Rem/5.56x45mm 16.50" Rifle, Black - 08610

    CZ-USA Bren 2 MS Carbine .223 Rem/5.56x45mm 16.50" Rifle, Black - 08610

    Regular Price $2,686.99 Special Price $2,419.99
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  20. VKTR Industries VK-1 5.56x45mm 16" Rifle, Flat Dark Earth - Durable and Versatile - V-3110-0916-602

    VKTR Industries VK-1 5.56x45mm 16" Rifle, Flat Dark Earth - Durable and Versatile - V-3110-0916-602

    $2,199.00
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  21. POF-USA Renegade+ 5.56x45mm 13.75" AR Rifle, Black - 02039

    POF-USA Renegade+ 5.56x45mm 13.75" AR Rifle, Black - 02039

    Regular Price $2,332.99 Special Price $2,119.99
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  22. Rock River Arms All Terrain Hunter LAR-15M .450 Bushmaster 16" AR Rifle, Black - 450B1562.V1

    Rock River Arms All Terrain Hunter LAR-15M .450 Bushmaster 16" AR Rifle, Black - 450B1562.V1

    Regular Price $1,522.99 Special Price $1,371.99
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  23. Rock River Arms Operator DMR LAR-15M .223 Remington/5.56x45mm 16" AR Rifle, Black - OP1510

    Rock River Arms Operator DMR LAR-15M .223 Remington/5.56x45mm 16" AR Rifle, Black - OP1510

    Regular Price $1,512.99 Special Price $1,374.99
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  1. Rifles 2100
  2. Pistols 932
  3. Uppers 1430
  4. Kits 747
  5. Lower Receivers 856
  6. Parts 9328
  7. Suppressors 175
  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.