When Not to Use Thread Lock On Guns
This guide details the proper application of thread locking compounds on firearms, differentiating between Red and Blue Loctite based on heat exposure and vibration. It emphasizes critical 'never' applications, such as on barrel extensions and barrel nuts, and provides specific recommendations for optics, sights, gas blocks, and holster screws. The advice comes from an expert instructor, highlighting potential warranty voiding and the importance of correct compound selection for firearm reliability and safety.













