VestGuard UK Body Armour Stopping Power – NIJ Standards

 VestGuard UK uses the NIJ (The National Institute of Justice – USA) standards to define the stopping capabilities of the vests they manufacture and supply. As the internationally defined test criteria for all NIJ classified body armour VestGuard has been approved and certified as a supplier to produce products to their quality and pass their protection standards.

VestGuard would always recommend buying body armour that has been tested and approved by the NIJ.


 Choosing the correct level according to the individual operational requirement can be difficult. Below illustrates the stopping capabilities of each level of the NIJ standard.









Protection Level
0101.05 Interim
Bullet Bullet Weight/Grain Velocity
ft/s m/s
NIJ level IIA (2A) 9mm Full Metal Jacket (FMJ) Round Nose (RN) 8.0g
(124gr)
1090 332
.40 S&W Calibre Full Metal Jacket (FMJ) 11.7g
(180gr)
10255 312
NIJ Level II (2) 9mm Full Metal Jacket (FMJ) Round Nose (RN) 8.0g
(124gr)
1175 358
.357 Magnum Jacketed Soft Point (JSP) 10.2g
(158gr)
1400 427
NIJ Level IIIA (3A) 9mm Full Metal Jacket (FMJ) Round Nose (RN) 8.0g
(124gr)
1400 427
.44 Magnum Semi Jacketed Hollow Point (SJHP) 15.6g
(240gr)
1400 427
NIJ Level III (3) 7.62mm Full Metal Jacket (FMJ) U.S. M80 rifle 9.6g
(148gr)
2750 838
NIJ Level IV (4) .30 Calibre Armour Piercing (AP) U.S. M2 AP 10.8g
(166gr)
2850 869
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