Menu
Close
Search
Search Log In Help Center
View Cart
Daily Deals
Clearance
Close
Daily Deals
Clearance
My Account
Help Center

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

shop complete rifles

Uppers

shop ar15 uppers

Lower Receivers

shop ar15 lowers

AR-15 Parts

shop ar-15 parts
Triggers

Triggers
.338 ARC

.338 ARC
Magazines

Magazines
Pistols

Pistols
Kits

Kits
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:
    87%
    (14)
    Regular Price $149.99 Special Price $29.99
    Add to Wish List Add to Compare
  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
    Add to Wish List Add to Compare
  3. LWRC IC .223 Remington AR Lower, Black - ICL5B
    LWRC IC .223 Remington AR Lower, Black - ICL5B
    Regular Price $866.99 Special Price $649.99
    Add to Wish List Add to Compare
View as Grid View List View

Items 217-240 of 16872

Page
Set Descending Direction
  1. Daniel Defense DDM4 10.3" 5.56 NATO AR Pistol w/ Maxim PDW Brace, Bazooka Green

    Daniel Defense DDM4 10.3" 5.56 NATO AR Pistol w/ Maxim PDW Brace, Bazooka Green

    Regular Price $2,199.99 Special Price $2,043.00
    Add to Wish List Add to Compare
  2. NEMO Arms Battle-Light 8" .300 BLK AR Pistol, Tungsten

    NEMO Arms Battle-Light 8" .300 BLK AR Pistol, Tungsten

    Regular Price $3,163.99 Special Price $2,849.99
    Add to Wish List Add to Compare
  3. NEMO Arms Battle-Light 8" 5.56 NATO AR Pistol, Burnt Bronze

    NEMO Arms Battle-Light 8" 5.56 NATO AR Pistol, Burnt Bronze

    Regular Price $3,163.99 Special Price $2,849.99
    Add to Wish List Add to Compare
  4. NEMO Arms Battle-Light Steel 20" 22 Arc AR Rifle, Nemo Sage Green

    NEMO Arms Battle-Light Steel 20" 22 Arc AR Rifle, Nemo Sage Green

    Regular Price $3,163.99 Special Price $2,849.99
    Add to Wish List Add to Compare
  5. NEMO Arms Battle-Light 16" .223 Wylde AR Rifle, Burnt Bronze

    NEMO Arms Battle-Light 16" .223 Wylde AR Rifle, Burnt Bronze

    Regular Price $3,163.99 Special Price $2,849.99
    Add to Wish List Add to Compare
  6. NEMO Arms XO Steel 16" .308 Winchester AR Rifle, Tungsten

    NEMO Arms XO Steel 16" .308 Winchester AR Rifle, Tungsten

    Regular Price $4,745.99 Special Price $4,274.99
    Add to Wish List Add to Compare
  7. NEMO Arms XO Steel 20" .308 Winchester AR Rifle, Tungsten

    NEMO Arms XO Steel 20" .308 Winchester AR Rifle, Tungsten

    $4,499.00
    Add to Wish List Add to Compare
  8. NEMO Arms XO Steel 22" 6.5 Creedmoor AR Rifle, Tungsten

    NEMO Arms XO Steel 22" 6.5 Creedmoor AR Rifle, Tungsten

    Regular Price $4,217.99 Special Price $3,799.99
    Add to Wish List Add to Compare
  9. IWI ARAD 5 16" 5.56 NATO AR Rifle, Black

    IWI ARAD 5 16" 5.56 NATO AR Rifle, Black

    Regular Price $1,555.99 Special Price $1,399.99
    Add to Wish List Add to Compare
  10. US PALM STORM CAT4 11.5" 5.56 NATO AR Pistol, Black

    US PALM STORM CAT4 11.5" 5.56 NATO AR Pistol, Black

    Regular Price $1,444.99 Special Price $1,300.99
    Add to Wish List Add to Compare
  11. US PALM STORM CAT4 16" 5.56 NATO AR Rifle, Black

    US PALM STORM CAT4 16" 5.56 NATO AR Rifle, Black

    Regular Price $1,444.99 Special Price $1,299.99
    Add to Wish List Add to Compare
  12. Sig Sauer M400 FORGE 16" 5.56 NATO AR Rifle w/ Romeo MSR, Black

    Sig Sauer M400 FORGE 16" 5.56 NATO AR Rifle w/ Romeo MSR, Black

    Regular Price $1,211.99 Special Price $1,100.99
    Add to Wish List Add to Compare
  13. Daniel Defense MK18 10.3" 5.56 NATO SBR, Black

    Daniel Defense MK18 10.3" 5.56 NATO SBR, Black

    $2,180.00
    Add to Wish List Add to Compare
  14. VKTR VK1 13.7" P&W 5.56 NATO AR Rifle, Armor Black

    VKTR VK1 13.7" P&W 5.56 NATO AR Rifle, Armor Black

    $2,399.00
    Add to Wish List Add to Compare
  15. VKTR VK1 13.7" P&W 5.56 NATO AR Rifle, Magpul FDE

    VKTR VK1 13.7" P&W 5.56 NATO AR Rifle, Magpul FDE

    Regular Price $2,663.99 Special Price $2,399.99
    Add to Wish List Add to Compare
  16. BLEM BCM Complete AR Rifle Lower Receiver w/ Mod-0 Stock, FDE

    BLEM BCM Complete AR Rifle Lower Receiver w/ Mod-0 Stock, FDE

    Regular Price $522.99 Special Price $470.99
    Add to Wish List Add to Compare
  17. BLEM BCM Complete AR Rifle Lower Receiver w/ Mod-1 SOPMOD Stock, Black

    BLEM BCM Complete AR Rifle Lower Receiver w/ Mod-1 SOPMOD Stock, Black

    Rating:
    100%
    (1)
    Regular Price $533.99 Special Price $480.99
    Add to Wish List Add to Compare
  18. ATI GSG-9 7.9" 9mm 10rd Semi-Auto Pistol, Black

    ATI GSG-9 7.9" 9mm 10rd Semi-Auto Pistol, Black

    Regular Price $699.99 Special Price $619.99
    Add to Wish List Add to Compare
  19. Sig Sauer M400 Forge 16" 5.56 NATO 30rd AR Rifle w/ ROMEO-MSR Gen II Red Dot, Black

    Sig Sauer M400 Forge 16" 5.56 NATO 30rd AR Rifle w/ ROMEO-MSR Gen II Red Dot, Black

    $1,099.99
    Add to Wish List Add to Compare
  20. PSA 16" Mid-Length 5.56 NATO 1/7 Nitride 13.5" Lightweight MLOK Stealth Rifle, FDE

    PSA 16" Mid-Length 5.56 NATO 1/7 Nitride 13.5" Lightweight MLOK Stealth Rifle, FDE

    Rating:
    100%
    (4)
    Regular Price $539.99 Special Price $479.99
    Add to Wish List Add to Compare
  21. PSA 16" Mid-Length Stainless Steel 5.56 NATO 1/7 Lightweight M-Lok Classic Rifle

    PSA 16" Mid-Length Stainless Steel 5.56 NATO 1/7 Lightweight M-Lok Classic Rifle

    Rating:
    100%
    (5)
    $479.99
    Add to Wish List Add to Compare
  22. PSA Custom 10.5" 5.56 NATO Pistol W/ PSA Custom Flatbow FCG -Trooper

    PSA Custom 10.5" 5.56 NATO Pistol W/ PSA Custom Flatbow FCG -Trooper

    $1,199.99
    Add to Wish List Add to Compare
  23. PSA Custom 10.5" 5.56 NATO Pistol W/ PSA Custom Flatbow FCG - Outlander

    PSA Custom 10.5" 5.56 NATO Pistol W/ PSA Custom Flatbow FCG - Outlander

    $1,199.99
    Add to Wish List Add to Compare
  24. Griffin Armament MK1PSD 9.5" 223 Wylde AR Pistol, Black

    Griffin Armament MK1PSD 9.5" 223 Wylde AR Pistol, Black

    Regular Price $1,609.95 Special Price $1,529.45
    Add to Wish List Add to Compare
View as Grid View List View

Items 217-240 of 16872

Page
Set Descending Direction
Shop By
Shopping Options
Category
  1. Rifles 2098
  2. Pistols 932
  3. Uppers 1427
  4. Kits 747
  5. Lower Receivers 856
  6. Parts 9316
  7. Suppressors 175
  8. Left Handed AR-15 7
Brand
Price
Apply
Caliber
Barrel Length
Stock
Deal of the Day
Clearance
Preferred Vendor
Coupon Code
Barrel Length

Looking for something more specific?

shop psa products
shop psa aac ammo
shop magpul products
shop glock products
shop sig sauer
shop smith and wesson

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.