AR15 Parts for Sale – Buy AR-15 Accessories Online

Did you know that you can find hundreds of different types of AR15 parts and AR-15 accessories right here at We've got AR 15 pistols and rifles as well as their many components and after-market accessories. Find AR 15 accessories like scopes and optics, rails, magazines, cases, cleaning kits and more. Our sellers' selection of AR15 parts is sure to offer you the part you're looking for. Put your AR15 in working order with a new part or customize your gun with AR-15 accessories you know will suit your needs. You can buy AR 15 accessories and parts made by Magpul, Colt, DPMS, and more through one of the many sellers listing their products here at, the world's largest gun auction site. If you don't see exactly what you're looking for today be sure to check back later – our sellers listings update every day and the AR-15 accessories and parts you want are sure to show up sooner rather than later.

Types of AR15 Parts

The AR15 lower receiver contains the trigger and hammer assemblies as well as the housing for the magazine. The lower receiver also connects the grip, the stock and the buffer assembly. This is the AR15 part that is classified by law as a “firearm” and comes with its own serial number.

AR15 upper receivers come in three major varieties: M4 feed ramps, A2 and A4 uppers. The M4 feed ramps allow for smoother feeding of magazine and is the most popular choice. A2 uppers have a carry handle built directly into the receiver and A4 uppers has a flat top for attachments.

Just as with the other AR15 parts, AR15 barrels come in a variety of styles. Rifle length barrels are around 13 inches and take 12 inch hand guards and rails. Mid-length barrels are around 10 inches and take 9 inch and allows for the best bolt cycling. Carbine (M4) barrels are around 8 inches and take a 7 inch hand guard.

Types of AR-15 Accessories

Being able to quickly acquire and aim down a target is essential for any shooter. This is made easier with the right AR15 sights and optics. AR15 rifles come standard with iron sights, but more popular are red dot sights made by manufacturers like EOTech, and Mepro. Another option is a full scope, but remember that the maximum effective range for an AR15 is around 600 yards so don’t go overboard with the magnification. Those who choose AR-15 accessories like electronic sights should consider flip-up iron sights as a backup if your electronics system was to fail.

When collecting AR15 parts for your new project, don’t forget to consider AR-15 accessories as they may determine what kind of parts you choose. has all kinds of AR-15 accessories like bipods for steady shooting, fore grips for improved control and accuracy, and torchlights, flashlights, and lasers for improved visibility and aiming. Also available are flash hiders to minimize muzzle flash, muzzle breaks to reduce recoil, and muzzle compensators to reduce muzzle climb. sellers update their auction listings frequently, so if you're looking to buy AR-15 accessories, parts or reloading equipment check back often.


Selected Filters

  • Accepts GunBroker Pay
  • Immediate Checkout - Credit Card
  • Layaway Available
  • No Credit Card Fee
  • Completed Items
  • Take a Shot
  • Sponsored On-site Listings
  • Showcase Listings
  • Charity Auctions
  • Has Pictures
  • No Reserve
  • International Shipping
  • Factory New
  • New Old Stock
  • Used
  • Price Range:
  • Barrel Length:
  • Caliber:
  • Capacity:
  • Frame Finish:
  • Gauge:
  • Grips:
  • Manufacturer:
  • Model:
  • Number of Rounds:
  • Number of Rounds For Sale:
  • Slide Finish:
  • Exclude Words:
  • Country:
  • State:
  • UPC:
  • Keywords:
  • Min Starting Bid:
  • Max Starting Bid:


Select a Category

Buy Format
$ to $
Listing Details
Item Condition
Show Only
Results for


Results for


Results for

{{currentKeywords}} in {{currentCatName}}

No results found or search too broad

Results for

AR15 Parts

618 Items Found