AR-15 Parts & Accessories

Find AR-15 parts for performance and personalization at prices that stay in your...
Read More
Find AR-15 parts for performance and personalization at prices that stay in your budget at Cheaper Than Dirt. Browse thousands of the top-rated AR-15 magazines, upper receivers, lower receivers, AR-15 lower parts, sights and other quality accessories. We also carry a great selection of AR-15 ammo, red dot sights and sturdy slings to help fully customize your rifle. Whether you are looking to build or buy the perfect AR, we have everything you need and more!
Less More
What are you looking for?

AR-15 Magazines

Grab a spare or replacement mag to efficiently feed your AR-15 the ammo it needs.

Shop All Magazines
Knowledge is firepower
Learn how to build your first
Discover all the parts you'll need to finish your build. Our step-by-step video tutorials will teach you how to assemble your first AR-15!
AR-15 Sights & Scopes

Stay on target with ease with our selection of crystal-clear optics.

Shop All Sights & Scopes

AR-15 Barrels

Start your build or upgrade off on the right foot with a high-quality barrel.

Shop All Barrels

AR-15 Charging Handle

Upgrade your AR-15 with a brand new ambidextrous charging handle.

Shop All Charging Handles

AR-15 Gas Tubes, Blocks, Pistons

Pick up a new gas block and gas tube for your next AR build.

Shop All Gas Tubes, Blocks and Pistons

AR-15 Muzzle Devices

Counter recoil and unwanted muzzle rise with a high-quality AR-15 muzzle device.

Shop All Muzzle Devices

AR-15 Receivers & Parts

Build a new upper with one of these high quality upper receivers.

Shop All Receivers & Parts
Our Low Price $1.97

AR-15 Bolt Carrier Parts

Find the right Bolt Carrier and parts for your AR-15

Shop All Gas Tubes, Blocks and Pistons

AR-15 Handguard

M-LOK, Keymod, Quadrail, Freefloat, Drop-In; find the perfect handguard for your build.

Shop All Handguards

AR-15 Lower Kits

Finish out your stripped lower receiver with kits designed for the discerning shooter.

Shop All Lower Kits
Our Low Price $99.97

AR-15 Lower Parts

Discover upgraded lower parts to step up your next AR-15 build.

Shop All Lower Parts

AR-15 Trigger Guard

Improve the looks and ergonomics of your AR with one of our well-made trigger guards.

Shop All Trigger Guard

AR-15 Triggers

Upgrade your factory trigger with these easy to install AR triggers.

Shop All Triggers

AR-15 Grips

A quality grip can help you stay comfortable and locked in during your trips to the range.

Shop All Grips

AR-15 Stocks

Better comfort and accuracy. That’s what you’ll get with a well-designed AR-15 stock.

Shop All Stocks