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Curated AR components from America's best brands. Whether you're building your first rifle or upgrading a competition rig — we've got you covered.
Start Here
Building an AR15 doesn't have to be complicated. We've broken it down into simple steps so you can build with confidence.
Choose Your Platform
AR15 for 5.56 NATO, or AR9 for 9mm. Both use similar parts with key differences.
Compare PlatformsSelect Your Components
Use our Build Wizard to select compatible parts step-by-step, or browse by category.
Open Build WizardBuild with Confidence
Our guides walk you through every step of the assembly process with photos and video.
View Build GuidesFind What You Need
AR-15
228 products
Muzzle Devices
AR-15
203 products
Lower Parts
AR-15
24 products
Slings
AR-15
24 products
Charging Handles
AR-15
23 products
M-LOK Handguards
AR-15
19 products
Pistol Grips
AR-15
18 products
Bolt Carrier Groups
AR-15
18 products
Upper Parts
AR-15
17 products
Lower Parts Kits
AR-15
16 products
Gas Tubes
AR-15
14 products
Iron Sights
AR-15
11 products
Barrels
AR-15
9 products
Gas Blocks
AR-15
7 products
Stock Components
AR-15
5 products
Stocks
AR-15
1 product
Buffer Systems
AR-9
12 products
Muzzle Devices
AR-9
9 products
Barrels
AR-9
3 products
Bolt Carrier Groups
AR-9
2 products
Accessories
Featured Products
BeginnerAR-15 Mil-Spec BCG (Cerakote Blue)
AR-15 12" M-LOK Free-Float Handguard, Suppressor-Compatible (Anodized Black)
.50 Beowulf Multi-Port Steel Compensator (Gen 2)
BeginnerAR-15 Ambidextrous Charging Handle Latch
BeginnerAR-9 9mm Nitride Mil-Spec BCG
Build Your Rifle
Step by Step
Our Build Wizard guides you through selecting compatible components for your AR15 or AR9. Choose your platform, build type, and components — we'll make sure everything fits.
Launch Build WizardCurated American Brands