LAW LAT (LAW Alignment Tool)

Published on March 15, 2026
Duration: 3:08

This guide details the installation of an AR-15 buffer tube using the LAW Tactical Alignment Tool (LAT) in conjunction with a Geissele Reaction Block. Expert instruction from the School of the American Rifle demonstrates how to achieve perfect alignment of the receiver extension with the lower receiver, crucial for proper function and preventing common assembly errors. The process involves securing the components, torquing the castle nut to 38-42 foot-pounds, and ensuring a reliable build.

Quick Summary

The LAW Tactical Alignment Tool (LAT), used with a Geissele Reaction Block, ensures perfect alignment of the AR-15 receiver extension with the lower receiver during installation. This prevents common errors like 'clocked' receiver extensions. The process involves securing the assembly in a vice and torquing the castle nut to 38-42 foot-pounds.

Chapters

  1. 00:00Introduction & Tool Identification
  2. 00:15Purpose with Geissele Reaction Block
  3. 00:43Demonstrating Buffer Tube Assembly
  4. 01:18LAT Integration & Alignment Process
  5. 01:54Torquing Receiver Extension in Vice
  6. 02:19Product Recommendation & Details

Frequently Asked Questions

What is the purpose of the LAW Tactical Alignment Tool (LAT)?

The LAW LAT is designed to work with tools like the Geissele Reaction Block to ensure the AR-15 receiver extension (buffer tube) is perfectly aligned with the lower receiver during installation, preventing common assembly errors.

What is the correct torque specification for an AR-15 castle nut?

The recommended torque specification for an AR-15 castle nut is typically between 38 to 42 foot-pounds. Using a torque wrench ensures proper tension and alignment.

What tools are needed to install an AR-15 buffer tube with the LAW LAT?

To install an AR-15 buffer tube using the LAW LAT, you will need the LAW LAT itself, a Geissele Reaction Block, a bench vice, an armorer's wrench, and a torque wrench.

How much does the LAW LAT typically cost?

The LAW Tactical LAT (LAW Alignment Tool) is estimated to retail for approximately $75 to $80 USD, making it an accessible tool for ensuring proper AR-15 buffer tube installation.

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