... by use of 79 micro-submachine gun loaded with 7.62mm handgun bullets on the 5, or 10 ... by use of 56-type submachine gun loaded with 7.62mm ordinary bullets on the 10, or 15, ... by use of 53-type submachine gun loaded with 7.62mm armor-piercing incendiary (at 808m /s speed ... with higher cost performance• HXFD2 steel recommended. high-quality,high-strength and price-competitive bullet-proof steel plate HXFD1