Videos tagged with Barrel Extension Alignment

This guide details essential pre-purchase and pre-firing checks for AR-15 platforms, focusing on assembly quality rather than material cost. It covers critical areas like barrel extension alignment, headspace, gas block installation, BCG integrity, and lower receiver fit. Performing these checks can prevent malfunctions, ensure reliability, and save money on potential repairs, especially with more affordable AR-15 models.

This guide details a comprehensive physical inspection of a Bear Creek Arsenal 16-inch AR-15 barrel, led by an expert from School of the American Rifle. It covers critical measurements like gas port size, headspace, and erosion, along with functional chamber tests and installation techniques including thermal fit and alignment checks. The inspection reveals potential issues with the throat length and crown, impacting compatibility with certain ammunition types.