Quick Tip: Benefits of Witness Marking Screws
This quick tip from Brownells demonstrates the technique of witness marking screws on firearms. By applying a visible line across a screw head and the component it's attached to, users can quickly ascertain if the screw has loosened. This method is particularly useful for critical components like optic mounts and accessory attachments, offering a visual confirmation for peace of mind during rigorous use or at the range.












