How to Check for a Barrel Obstruction

Published on April 2, 2026
Duration: 1:09

This guide explains how to properly check for a barrel obstruction by disassembling the firearm and removing the bolt carrier group. It clarifies that looking down the barrel from the breech end at the bolt face can be misleading, as the black bolt face will appear dark, not indicating a lack of obstruction. Proper inspection involves looking through the barrel from the chamber end after removing the BCG.

Quick Summary

To correctly check for a barrel obstruction, ensure the firearm is unloaded, then disassemble it to remove the bolt carrier group. Look through the barrel from the chamber end to inspect the rifling for any foreign objects or debris. Looking from the breech end at the black bolt face can be misleading.

Frequently Asked Questions

What is the correct way to check for a barrel obstruction?

To correctly check for a barrel obstruction, you must first ensure the firearm is unloaded. Then, disassemble it to remove the bolt carrier group. Look through the barrel from the chamber end to inspect the rifling for any foreign objects or debris.

Why is looking down the barrel from the breech end misleading for checking obstructions?

Looking down the barrel from the breech end at the bolt face is misleading because the bolt face is black and does not emit light. This can make the barrel appear dark, leading one to believe there's an obstruction when there isn't.

What common mistake should be avoided when checking for barrel obstructions?

A common mistake is assuming a barrel is obstructed simply because no daylight is visible when looking from the breech end. The correct method involves disassembly and inspection from the chamber end after removing the bolt carrier group.

What part of the firearm needs to be removed to properly inspect the barrel for obstructions?

To properly inspect the barrel for obstructions, you need to remove the bolt carrier group. This allows for a clear view through the barrel from the chamber end, enabling inspection of the rifling.

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