1. Firearms
  3. Semi-Auto Rifles
  5. AR-15 Rifles

5.56 mm AR-15 Rifles For Sale

AM-15 5.56MM SEMI-AUTOMATIC RIFLE WITH 15-INCH M-LOK HANDGUARD

Anderson Manufacturing AM-15 Utility 5.56mm Semi-Automatic Rifle with M-LOK Handguard

  • $649.00 $349.99
In Stock
AM-15 MULIT STRIPPED LOWER NO LOGO BLACK

Anderson Manufacturing AM-15 Stripped Lower Multi-Cal (No Logo)

  • $84.95 $39.99
In Stock
SAINT VICTOR 5.56 NATO 16 IN BARREL GREEN FINISH

Springfield SAINT Victor 5.56 NATO Rifle Gear-Up Package

  • $1,019.99 $999.99
In Stock
AM-15 5.56 NATO 16 IN BARREL M-LOK MOE

Anderson Manufacturing AM-15 5.56mm Semi-Auto Rifle with Magpul Furniture

  • $399.99 $379.99
In Stock
MP SPORT 3 5.56 BLACK 16 IN BBL 30 RD MAG

Smith & Wesson M&P15 Sport III 5.56mm Rifle with Full-Length M-LOK Handguard and Forged Trigger

  • $799.00 $699.00
In Stock
SAINT VICTOR 5.56 NATO 16 IN BARREL FDE FINISH

Springfield SAINT Victor 5.56 NATO Rifle Gear-Up Package

  • $1,019.99 $899.99
In Stock
SAINT VICTOR 5.56 NATO 16 IN BARREL TUNGSTEN FINISH

Springfield SAINT Victor 5.56 NATO Rifle Gear-Up Package

  • $1,019.99 $899.99
In Stock
MP15 5.56 SPORT III MLOCK 16IN FM GREY

Smith & Wesson M&P15 Sport III 5.56 NATO Semi-Auto Rifle with Tungsten Gray Cerakote Finish

  • $829.00 $819.99
In Stock
RF-15 SOCOM 5.56NATOAR-15 RIFLE WITH 15-INCH RPR FREE-FLOAT RAIL

Radical Firearms RF-15 Socom 5.56 NATO AR-15 Rifle with 15-Inch RPR Free-Float Rail

  • $685.00 $389.99
In Stock
DBF DB15 5.56 NATO 16 IN BARREL FDE/BROWN FINISH

Diamondback DB15 5.56 NATO AR-15 Rifle with Brown Cerakote Finish and FDE Furniture

  • $787.00 $549.99
In Stock
SAINT VICTOR 5.56 NATO 16 IN BARREL GRAY FINISH

Springfield SAINT Victor 5.56 NATO Rifle Gear-Up Package

  • $999.99 $979.99
In Stock
SAINT VICTOR B5 5.56 NATO RIFLE 16 IN BARREL 2-30 RD MAGS

Springfield SAINT Victor 5.56 NATO Rifle Gear-Up Package

  • $999.99 $979.99
In Stock
CQT15 5.56MM 16` BARREL

Cqt Weapon Systems CQT15 5.56mm Semi-Auto Rifle with Aluminum M-Lok Handguard

  • $998.99 $659.00
In Stock
DDM4V7 SLW DEEP WOODS

Daniel Defense DDM4 V7 SLW 5.56 NATO Semi-Auto Rifle with Deep Woods Finish

  • $1,904.00 $1,799.99
In Stock
DD M4A1 5.56MM SEMI-AUTOMATIC RIFLE

Daniel Defense DD M4A1 5.56mm Semi-Automatic Rifle

  • $2,236.00
In Stock
DDM4 M4A1 5.56 NATO 14.5 IN BBL FDE FLASHIDER PERMANENTLY ATTACHED

Daniel Defense M4A1 5.56 NATO AR-15 with MilSpec + Finish

  • $2,432.00
In Stock
DDM4 A1 RIII 5.56 FDE 14.5 IN BBL 12.5 IN RIS III RAIL MAG/SLING

Daniel Defense DDM4 A1 RIII 5.56mm FDE Semi-Auto Rifle with TriggerTech 2-Stage Trigger, RIS II

  • $1,999.99
In Stock
RADICAL 5.56MM 16` BARREL WITH 15` FREE FLOAT RAIL ODG

Radical Firearms FR16 5.56 NATO Rifle with M-LOK Handguard and OD Green Stock

  • $449.99 $399.99
In Stock
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Explore Our Collection of AR-15s for Sale

What sets the AR-15 apart from other semi-auto rifles is its customizability. No matter what you need your weapon for, you can build an AR for it.

Want something for home defense that isn't just a semi-auto handgun? An AR-15 with a compact rifle barrel and a foregrip is perfect. Getting ready for the next hunting season? Get an AR-15 rifle that's optics-ready to attach a scope and has a longer barrel for increased bullet velocity. And if you just want something that looks cool at the range, our AR-15s for sale feature everything from tactical black to patriotic decals.

Explore all of these and more in our massive collection of guns for sale!

Quality AR-15 Rifles, Exceptional Service

Sportsman's Outdoor Superstore has been offering guns for sale online since 2007, with a rich history of gun sales for over 70 years prior. We owe our success to a commitment to our community of fellow gun owners.

We keep our gun store inventory up to date, ensuring you'll never try to place an order we can't fulfill. To make sure you're getting the best value, all of our guns and accessories are competitively priced. Your order also comes with free shipping to the lower 48 states.

Have questions about our tactical AR-15s for sale? Contact us today - we'll get you the help you need.

Frequently Asked Questions

What is an AR-15?

The AR-15 is a highly customizable semi-automatic rifle. It was originally designed by ArmaLite in the 1950s to meet the US military's need for a standard-issue weapon that was lightweight, reliable, and modular. The military counterpart of the AR-15 (known as the M16) was the standard-issue rifle for the US Armed Forces from the late 60s to the early 2000s.

What are AR-15 pistols?

The AR-15 pistol is a modular handgun that uses the same receiver as a full-sized AR-15 rifle. Instead of being chambered for smaller calibers like 9mm rounds, AR-15 pistols are designed to shoot rifle rounds like .223 Remington and 5.56 NATO. You get a compact, maneuverable weapon without compromising on firepower.

Can I order an AR-15 for sale and have it delivered to my house?

No. All purchases on our site must be sent to an FFL dealer first and then picked up from the dealer. Before placing an order, you should contact your local licensed firearms dealer to confirm they can accept your purchased gun. If you don't, it's very likely they will return the package to us.

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