The manufacturers of barrels stamped “NBS” are of key interest to certain firearm enthusiasts and collectors. These barrels, often found on surplus firearms, indicate production by or for the former Yugoslavian national arms factory, Zavodi Crvena Zastava, located in Kragujevac, Serbia. An example would be an M70 rifle featuring such a barrel marking.
Understanding the origin of these barrels is essential for verifying the authenticity and potential historical significance of the firearm. Barrels from this manufacturer are often associated with durability and quality, contributing to the collectible nature of these firearms. Their production spanned a significant period, reflecting changes in manufacturing techniques and materials across different eras. This historical context can provide valuable insight into the firearm’s overall history and potential value.