BallisticsAmmo, armor, plates, rigs, and the penetration/drop calculators

"Trader" is who sells it and at which loyalty level (some require a quest to unlock that level, or an Arena BattlePass tier, noted where it applies) -- a blank Trader means the wiki lists no direct trader source for it (flea market / barter / found in raid only).

Standalone ballistic plates -- what goes inside a plate-carrier vest (the ones marked "Plates" in the Armor Table above). Effective Durability accounts for the plate's blunt-damage soak on top of raw Durability, so it's the better number for comparing plates head to head. "Trader" is who sells it and at which loyalty level (some require a quest to unlock that level, noted where it applies) -- a blank Trader means the wiki lists no direct trader source for it (flea market / barter / found in raid only).

Chest rigs. Some carry their own external plate pockets (shown as "Plates" in the Class column, same as plate-carrier vests) -- hover a plate badge to see exactly which plates fit that slot. Pure-storage rigs with no armor at all are included here for capacity reference only. "Trader" is who sells it and at which loyalty level -- a blank Trader means the wiki lists no direct trader source for it (flea market / barter / found in raid only).

Escape from Tarkov doesn't publish its real penetration formula. This uses the rough approximation chance = 50 + (pen − armorClass×8)×2.5 + (100−durability)×0.15, clamped 0–100%, and estimates post-penetration damage reduction (0–40%) on the same curve. Treat it as a rough guide, not an exact in-game outcome. Non-penetrating hits (blunt damage on unarmored zones, etc.) aren't modeled. In "Build a loadout" mode, the plate's class replaces the manual pick, but the durability slider still represents how worn the armor currently is (0–100%) -- it isn't the plate's own raw Durability stat from the Armor Plates table (that's an absolute point total specific to that model, not a wear percentage), and a plate inside a rig isn't an extra layer to punch through -- it's the sole protection for that zone, same as picking its class directly above.

Simplified external ballistics: gravity-only drop from muzzle velocity (drop = ½×g×t², t = range/velocity), fired perfectly flat. Real trajectories also lose velocity to air drag, which this doesn't model (the wiki doesn't publish per-round ballistic coefficients), so actual in-game drop will be somewhat greater at longer ranges than shown here. Useful for comparing rounds against each other, not as an exact zeroing reference.