AR 15 Build List [Updated 2023]

In this AR15 build guide, we put together a list of upper and lower parts to complete a custom build AR15.

For around approximately $1100, you can build a durable AR 15 rifle with exact parts you want, and you can upgrade it even more later.

Let's check them out...

Top AR15 Parts To Make An AR15

Lower Receiver

• Spike Tactical Lower (Any receiver will do)
• BCM Grip Mod 3 - Perfect grip angle and ergonomics
• Magpul CTR stock - Very durable and slick looking
• Geissele SDE Trigger - Much clean trigger break than factory trigger
• Radian Talon 45/90 - Angled firing selector for faster mode switch
• Anti Walk Pins - Prevents trigger group pins from walking out
• Geissele Super 42 Braided Buffer Spring - Extend spring service life
• H2 Buffer (Normal Use) or H3 (Suppressed) 
• Geissele Lower Parts Kit - It works
• BCM AR Trigger Guard - Any would work
• Magpul BAD Lever - Enables firing hand bolt lock/release
• BCM Mil Spec Buffer Tube - It works 

Check out more billet receiver options here

Upper Receiver Build

• Aero Precision M4E1 upper (with or without forward assist)
• Bolt-Up System DD Barrel Nut Wrench
• Midwest Industry Combat Rail
• Ballistic Advantage 16" barrel
• 0.750" size Gas Block 
• Carbine Length Gas Tube
• Geissele Airborne Charging Handle
  
• Surefire War Comp 556-1/2-28

Tools Needed 

You will need the following tools to successfully assemble all components.

• 1/2" drive Torque wrench (50 - 80 ft lb torque)
• Receiver reaction rod
• Anti seize compound
• Loctite compound
• Vice clamp
• Work bench (Must have to apply torque)
• Punch pins
• Screw driver

If you're only building one rifle, we highly recommend buying a complete upper receiver so you don't have to buy a heavy work bench and vice clamp

Check out popular complete AR15 upper receiver on our site

AR15 Optics

There are so many optics available on the market. Most people put a red dot sight on the rifle for training and defensive use.

To get the most out of your AR15's effective range, please check out the following scope options:

• Prism optics
• LPVO
• Long range scopes