MY FIRST AR BUILD (With No Instructions)

Published on July 15, 2020
Duration: 17:11

This guide details the process of building an AR-15 from a box of parts, as demonstrated by Brandon Herrera. It covers unboxing components from brands like White Label Armory and DRG Manufacturing, assembling the BCG, fire control group, and upper receiver, and finally, test firing the completed rifle with accessories from Primary Arms. The video highlights the challenges of building without instructions, offering practical insights for DIY firearm enthusiasts.

Quick Summary

Learn to build an AR-15 from a box of parts with Brandon Herrera's guide. Key steps include unboxing components from brands like White Label Armory, assembling the BCG and fire control group, installing the barrel and gas system, and completing the build with accessories like Primary Arms optics.

Chapters

  1. 00:00The Challenge
  2. 01:45Unboxing Parts
  3. 04:17Assembly Process
  4. 10:23Upper Receiver and Gas System
  5. 13:44Range Testing

Frequently Asked Questions

What are the key components needed for an AR-15 build?

An AR-15 build requires a lower receiver, upper receiver, barrel, bolt carrier group (BCG), handguard, fire control group (trigger, hammer, springs, disconnector), gas block, gas tube, charging handle, buffer tube assembly, stock, and magazine. Brands like White Label Armory and DRG Manufacturing supply many of these parts.

What tools are essential for building an AR-15?

Essential tools for an AR-15 build include a punch set, hammer, pliers, screwdrivers, a torque wrench for the barrel nut, and assembly lube. Specialized AR-15 armorers' tools can also be beneficial for certain steps.

What is the significance of a 1:7 barrel twist rate?

A 1:7 barrel twist rate indicates that the rifling inside the barrel completes one full rotation every seven inches. This twist rate is optimal for stabilizing heavier .223 Remington or 5.56 NATO projectiles, ensuring better accuracy and performance with common ammunition types.

How does a billet receiver differ from a forged receiver?

Billet receivers are machined from a solid block of aluminum, offering tighter tolerances, a more refined appearance, and often increased rigidity. Forged receivers are made by heating and hammering a block of aluminum, which is a more cost-effective and durable manufacturing method.

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