Videos tagged with Buffer Tube Alignment

This guide provides a quick external assessment of an AR-15 for potential buyers, focusing on common issues that indicate builder inexperience or potential problems. Key checks include magazine catch alignment, castle nut security, buffer tube orientation, gas tube installation, and muzzle device tightness. The assessment is designed to be performed without disassembling the firearm, making it suitable for gun shows or shop environments.

This video introduces a new line of Brownells AR tools, including upper and lower receiver vice blocks, and a bench block. These tools are designed to aid in the assembly and maintenance of AR-15 and AR-308 platforms. Specific applications highlighted include barrel installation, gas block and bayonet lug roll pin work, buffer tube alignment, and castle nut staking, emphasizing secure component handling.

This video provides a detailed inspection of Ruger AR556 lower receivers, identifying common manufacturing inconsistencies. Key findings include a lack of castle nut staking, issues with takedown pin removal, improper buffer retainer timing, and buffer springs that go to solid height. The instructor also notes the presence of notched hammers and under-torqued castle nuts, offering insights into potential reliability and longevity concerns.

This video provides an in-depth physical inspection of a Knight's Armament SR-15 Mod 2 rifle, highlighting its unique design features and proprietary components. The instructor demonstrates specialized tools and techniques required for working on KAC firearms, emphasizing differences from standard AR-15 platforms. Key areas covered include the bolt and barrel extension design, gas system, ambidextrous lower receiver, bolt carrier group specifics, and various dimensional checks for headspace, throat erosion, and alignment.