Source: US National Institute of Justice (video statements)
Although iron-based metals are popular for making critical parts of firearms, they are susceptible to corrosion or rust. There is currently little research on how long a firearm can be left to rust before an identification is no longer possible. This project evaluates the effects of rust on the common working surfaces of Glock and Smith & Wesson Sigma firearms.
Webinar presented by the NIJ Forensic Technology Center of Excellence.
Opinions or points of view expressed represent the speaker and do not necessarily represent the official position or policies of the U.S. Department of Justice. Any product or manufacturer discussed is presented for informational purposes only and do not constitute product approval or endorsement by the U.S. Department of Justice.)