AR Builders Guide: How to Build an AR-15 Upper Receiver Assembly LONG Version

Welcome to the AR Builders Guide! In this video, Chris Sprague and Aaron Ashford walk you through building an AR-15 upper receiver assembly from start to finish. We kick off with a detailed look at all the essential tools you’ll need (check out the Amazon links below for easy access), then dive into the required parts for the build. Finally, we assemble everything step-by-step and mount an optic to complete the upper receiver. Whether you're a first-time builder or a seasoned pro, this guide will help you get the job done right. Don't forget to like, comment, and subscribe for more AR-15 content. #AR15 #AR15Build #UpperReceiver #Gunsmithing #Firearms #ARBuilder #2A #AR15Assembly #GunCommunity #AR15Parts

Parts Needed:

Upper Receiver: I prefer Building on Aero Precision M4 or M5 upper and lower combos. They use set screws instead of roll pins. Otherwise I would get an assembled upper (forward assist and ejection port cover installed).

Barrel: I use Ballistic Advantage. Aero Precision barrels are also Ballistic Advantage. I'll do a video on just barrels later.

Handguard/Barrel Nut: I go to Justrails.com for these.

Gas Block: I recommend Superlative Arms Bleed Off Adjustable Gas Blocks. They work well for every situation.

Gas Tube: I like to use the Melonited ones. I don't like shiny things on my rifles or pistols.

Bolt Carrier Group: I used Toolcraft from ar15discounts.com.

Charging Handle: I like the ambi one from justrails.com

Optic: Whatever you prefer. I can do a video on different optics if you all would like.

Useful Links:
Fold Wallet: https://use.foldapp.com/r/LPVVRF99
Find Me on Discord: https://discord.gg/XMsKj5J2sZ

Ambi Selector Switch:
https://justrails.com/ar-aftermarket-parts/ols/products/presma-ar-ambidextrous-safety-selector-switch

Ambi Magazine Release:
https://justrails.com/ar-aftermarket-parts/ols/products/presma-inc-ar-15-ambidextrous-extended-modular-magazine-release-catch-button-black

Winchester Multi-Tool (only place I could find it): https://winchestergear.com/products/multi-tool

Useful AR building tools:
Wheeler Digital Fat Wrench: https://amzn.to/3NqmFnv
Armorer's Wrench: https://amzn.to/3Y1cRWZ
Vice: https://amzn.to/3Y69xZF

Upper Receiver Vice Block: https://ar15discounts.com/products/wheeler-delta-series-ar-upper-picatinny-rail-vise-block/

Roll Pin Punch Set: https://amzn.to/4eEu8L0
Torque Wrench: https://amzn.to/3TNtJOk
Crows Foot Wrench Set: https://amzn.to/3BnC59j
Adjustable Wrench: https://amzn.to/3BsJgNu
Long Shank Bit Set: https://amzn.to/3TNqB5h
Loctite 620: https://amzn.to/3ZJ85yI
AR 15 Upper Receiver Lapping Tool: https://amzn.to/3zGrfKW

Where I get my gun parts:
www.justrails.com
www.ar15discounts.com
www.aeroprecision.com
www.ballisticadvantage.com
www.righttobear.com
www.primaryarms.com

All these sites offer a military/first responder discount.
ar15discounts.com accepts bitcoin as payment.