Active Shooter Backpack Armor: Can M855A1 Defeat Plastic Armor ~AND~ A Book?
This video tests the ballistic resistance of Shot Stop's SSB-III-RA2 backpack armor panel, which is NIJ Level III rated, against M855 and M855A1 rounds. The test investigates whether common items like a book or laptop placed in front of the polyethylene armor can increase its protection against these specific rifle rounds, particularly M855A1, which is not typically stopped by UHMWPE plates. A Phantom v642 High-Speed Camera is used for detailed analysis of the impact.








