Interceptor SAPI / ESAPI
SAPI and ESAPI. The Interceptor Multi-Threat Body Armor System introduced the idea of small-arms protective inserts (SAPI) -- ceramic plates slipped into body armor pockets -- that dramatically increased the vest's protective value. While a Kevlar vest protects against pistol rounds and shrapnel, with the added SAPI plates even rifle rounds can be reduced to non …