▁a ▁W Z ▁ 5 0 2 ▁mort ar ▁car rier ; ▁a ▁W Z ▁ 5 0 3 ▁tur ret less ▁prototype ▁A PC ▁with ▁a ▁larger ▁tro op ▁compart ment ▁and ▁ 1 2 . 7   mm ▁heavy ▁machine ▁gun ; ▁a ▁W Z ▁ 5 0 4 ▁tank ▁destroy er ▁( about ▁ 1 8 0 ▁were ▁built ), ▁fitted ▁with ▁an ▁elev atable ▁weapon ▁station ▁armed ▁with ▁two ▁or ▁four ▁H J - 7 3 ▁" Red ▁Ar row ▁ 7 3 " ▁cable - gu ided ▁AT GM ▁rail ▁launch ers ▁( the ▁H J - 7 3 ▁AT GM ▁is ▁a ▁lic ensed ▁copy ▁of ▁the ▁Soviet ▁ 9 M 1 4 M ▁" M aly ut ka - M " ▁AT GM ); ▁a ▁W Z ▁ 5 0 5 ▁arm ored ▁amb ul ance ▁and ▁a ▁W Z ▁ 5 0 6 ▁command ▁and ▁staff ▁vehicle ▁( about ▁ 9 0 ▁were ▁built ). ▁( See ▁' The ▁People ' s ▁Republic ▁of ▁China ' ▁section ▁in ▁the ▁B MP - 1 ▁variants ▁article ▁for ▁details ). ▁The ▁W Z ▁ 5 0 1 ▁has ▁also ▁been ▁export ed ▁to ▁Iran , ▁Ira q , ▁North ▁Korea , ▁Bur ma ▁and ▁Sri ▁L anka . ▁ ▁Cuba ▁ ▁Due ▁to ▁there ▁being ▁a ▁limited ▁number ▁of ▁B MP - 1 s ▁in ▁Cub an ▁service ▁only ▁one ▁company ▁per ▁a ▁motor ▁rif le ▁regiment ▁could ▁be ▁equ ipped ▁with ▁B MP - 1 s