Purchase from Prapor when available
Check Prapor’s barter offers regularly
Loot it from ammo boxes and weapon crates
Find it in technical supply crates
Search military loot spawns on Reserve
Search military loot spawns on Lighthouse
Search military loot spawns on Woods
Check dead Scavs and Raiders
Loot it from Scav pockets and backpacks
Obtain it from the Flea Market if unlocked
Craft it if you have the required hideout recipe
Complete quests that reward OFZ Shells or related barter unlocks