1 ▁standard ▁or ▁M 9 0 1 / A 1 s ▁on ▁the ▁M 1 1 3 A 2 ▁ch ass is . ▁ ▁M 9 0 1 A 3 : ▁Vari ant ▁based ▁on ▁M 1 1 3 A 3 . ▁ ▁M 9 8 1 ▁Fire ▁Support ▁Team ▁Ve h icle ▁( FI ST V ): ▁Art illery ▁forward ▁observer ▁vehicle . ▁E qui pped ▁with ▁s ights ▁and ▁other ▁target ing ▁instrument ation ▁in ▁a ▁tur ret ▁deliber ately ▁designed ▁to ▁res emble ▁that ▁of ▁the ▁M 9 0 1 . ▁The ▁M 9 8 1 ▁F IST V ▁has ▁been ▁supp l anted ▁by ▁the ▁M 7 ▁Brad ley ▁and ▁M 1 1 3 1 ▁S try ker ▁fire ▁support ▁vehicles . ▁ ▁M 1 0 1 5 ▁Track ed ▁Electron ic ▁War fare ▁Car rier . ▁ ▁M 1 0 5 9 : ▁Lyn x ▁Sm oke ▁Gener ator ▁Car rier ▁( S GC ). ▁Us es ▁the ▁M 1 5 7 ▁Sm oke ▁Gener ator ▁Set ▁( S GS ) ▁on ▁the ▁M 1 1 3 A 2 . ▁ ▁M 1 0 5 9 A 3 : ▁M 1 0 5 9 ▁variant ▁using ▁the ▁M 1 5 7 A 2 ▁S GS ▁on ▁the ▁M 1 1 3 A 3 . ▁ ▁M 1 0 6 4 ▁mort ar ▁car rier : ▁equ ipped ▁with ▁an ▁M 1 2 1 ▁ 1 2 0 ▁mm ▁mort ar ▁as ▁replacement ▁for ▁M 1 0 6 .