How to assemble the lower receiver on your own AR-15 rifle

Follow some expert gunsmiths at Brownells as they walk you through simple procedures for customizing, repairing, and maintaining your firearms. This weapons video tutorial series will teach you how to assemble the lower receiver on your own AR-15 rifle.

The AR-15 is one of the most adaptable rifle platforms in history, and building one is easier than you think. Brownells has produced a comprehensive series of easy to use web based video instructions on assembling an AR-15. They cover the all the parts, variations, subassemblies, tools and complete building of the rifle so you can feel confident to tackle this project on your own.

Broken down into short easy to follow video instructions for each step, you’ll be able to watch only those segments that pertain to your rifle and not be bogged down with a lot of extra details.

This section covers the assembly and testing of the: magazine catch, bolt catch, pivot pin, trigger group, safety selector, pistol grip and trigger guard. If you’re going to install an aftermarket adjustable trigger, then the clip detailing the trigger installation may be helpful. Additionally each of these segments will be helpful for installing other aftermarket lower receiver components as well.

1. Assembling the Lower Receiver Introduction
2. Installing the Magazine Catch
3. Installing a Bolt Catch
4. Installing the Pivot Pin
5. Installing the Trigger Group
6. Installing the Safety Selector & Pistol Grip
7. Installing the Trigger Guard

Search "AR-15" and start building, parts knowledge, get the right tools, upper receiver, free float barrels, charging handles, fixed buttstock and functions check on WonderHowTo to see more about building an AR15 gun.