LAST CHANCE! 300 Blackout Kit | Palmetto State Armory

Published on November 30, 2025
Duration: 0:52

This guide details the assembly of a 300 Blackout pistol build kit from Palmetto State Armory. It covers identifying kit components, understanding the FDE Hex Rail's features, and the general process of completing a stripped lower receiver. The kit is presented as a straightforward project for builders, with a focus on the versatility of the 300 Blackout caliber, especially for suppressed applications.

Quick Summary

The Palmetto State Armory 300 Blackout Build Kit includes an upper receiver assembly, lower parts kit, and buffer tube assembly. The FDE Hex Rail offers M-LOK at 3, 6, and 9 o'clock, plus a full Picatinny top rail. This caliber is ideal for suppressed builds and offers versatility for various shooting applications.

Chapters

  1. 00:00Black Friday 300 Blackout Pistol Build Intro
  2. 00:05FDE Hex Rail Features
  3. 00:16300 Blackout Versatility
  4. 00:24Build Kit Contents

Frequently Asked Questions

What are the key components included in the Palmetto State Armory 300 Blackout Build Kit?

The kit typically includes the upper receiver assembly, a lower parts kit, and a buffer tube assembly, providing essential parts to complete a firearm build when paired with a stripped lower receiver.

What are the mounting options on the FDE Hex Rail?

The FDE Hex Rail features M-LOK mounting slots at the 3, 6, and 9 o'clock positions for accessory attachment, along with a full-length Picatinny rail along the top for optics and other accessories.

Why is the 300 Blackout caliber recommended for certain builds?

The 300 Blackout caliber is often recommended for suppressed builds due to its efficient powder burn in shorter barrels and its ability to effectively utilize subsonic ammunition, offering a quieter shooting experience.

What is required to complete a build using this kit?

To complete a build using this kit, you will need a stripped AR-15 lower receiver, as the kit primarily provides the upper receiver assembly and the necessary components to finish the lower.

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