ide en ▁armed ▁with ▁light ▁anti - t ank ▁weapons ; ▁the ▁B MP - 1 ' s ▁anti - t ank ▁fire power ▁was ▁not ▁suitable . ▁ ▁A ▁new ▁up - arm ored ▁variant ▁of ▁the ▁B MP - 1 , ▁designated ▁the ▁B MP - 1 D , ▁( it ▁was ▁sometimes ▁known ▁as ▁the ▁" A fg han " ▁variant ), ▁was ▁ur g ently ▁pressed ▁into ▁service ▁in ▁ 1 9 8 2 . ▁Many ▁field ▁modifications ▁were ▁carried ▁out ▁by ▁various ▁units . ▁These ▁included ▁w eld ing ▁an ▁additional ▁A GS - 1 7 ▁" Pl am ya " ▁automatic ▁gr en ade ▁launch er , ▁without ▁its ▁mount ing , ▁on ▁the ▁bra cket ▁of ▁the ▁anti - t ank ▁gu ided ▁miss ile ▁( AT GM ) ▁launch er ▁on ▁the ▁tur ret ▁roof ▁or ▁a ▁ 2 B 9 ▁" V as ile k " ▁ 8 2   mm ▁automatic ▁gun - mort ar ▁on ▁the ▁roof ▁of ▁the ▁tro op ▁compart ment ▁to ▁increase ▁the ▁vehicle ' s ▁fire power ▁when ▁guard ing ▁vital ▁routes . ▁C rew ▁members ▁noted ▁that ▁the ▁ 7 3   mm ▁O G - 9 ▁HE - Fragment ation ▁round ▁for ▁the ▁main ▁gun , ▁which ▁was ▁supposed ▁to ▁increase ▁the ▁vehicle ' s ▁fire power ▁against ▁un arm ored ▁vehicles ▁and ▁inf antry , ▁had ▁a ▁large ▁disp ersion , ▁ins u fficient ▁point - blank ▁range ▁and ▁an ▁occas ional ▁in ability ▁to