Videos tagged with Geissele Reaction Block

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.

This video provides a technical guide on using receiver extension (buffer tube) jigs for AR-15 builds to ensure proper alignment when installing collapsible stocks. It details how to use common jigs like the Geissele Reaction Block and Botach Clea Zion, including a clever tip using coins to create a rigid assembly in a vise. The instructor emphasizes preventing cosmetic damage and ensuring functional integrity during castle nut installation and removal.

This guide details the Fightmaster Method for staking an AR-15 castle nut, emphasizing proper tool selection and technique. An experienced instructor demonstrates how to use a reaction block, center punch, and brass hammer to stake the end plate into the castle nut notch, preventing loosening from vibration. The method focuses on functional staking, acknowledging that perfect aesthetics are secondary to a secure assembly.

This guide details the use of the Geissele Reaction Block, a tool designed for AR-15 receiver extensions. Made from billet aluminum with polymer set screws, it securely holds mil-spec receiver extensions in a vise. The block's versatility allows for vertical, horizontal, or inverted orientations, simplifying tasks like magazine catch installation, grip installation, and thread cleaning.