However , the Glaser can penetrate barriers such as drywall , plywood , and thin sheet metal if struck nearly head on .
Glancing hits on hard surfaces will result in fragmentation , reducing the risk of ricochets .
The Glaser can penetrate barriers such as drywall , plywood , and thin sheet metal if struck nearly head on .
Glancing hits on hard surfaces will result in fragmentation , reducing the risk of ricochets .