Protective Helmet BK-4

Protective Helmet BK-4
 
 
Ballistic protection Weight - M size (grams)
NIJ 0106,01
(modified)
STANAG 2920
V50
(Fragment 1,1g)
Shell
(gram)
Helmet
Shoteck
Shoteck 2M
(200g + 70g)
TC
TC 2M
(180g + 40g)
 TR
TR 2M
(150g + 30g)
 IIIA 9 mm 620m/s  1155 1425 1355 1335
 IIIA 44 Mag 650m/s 
NSN:8470-53-000-0456
 1225 1495  1425  1405
  680m/s   1255 1525  1455  1435
  700m/s   1335  1605  1535  1515
  720m/s   1400  1670  1600  1580