▁more ▁efficient ▁as ▁it ▁requires ▁less ▁time ▁for ▁pre launch ▁prepar ations . ▁ ▁Se j il - 3 : ▁An ▁un conf ir med ▁report ▁stated ▁the ▁a ▁Se j il - 3 ▁may ▁be ▁in ▁development . ▁The ▁Se j il - 3 ▁would ▁reported ly ▁have ▁three ▁stages , ▁a ▁maximum ▁range ▁of ▁ 4 , 0 0 0   km , ▁and ▁a ▁launch ▁weight ▁of ▁ 3 8 , 0 0 0   kg . ▁The ▁Se j il - 3 ▁is ▁intended ▁to ▁be ▁the ▁first ▁IR B M ▁of ▁the ▁Se j il ▁series . It ▁is ▁based ▁on ▁the ▁design ▁of ▁the ▁Se j il - 2 , ▁but ▁with ▁an ▁improved ▁engine ▁and ▁guidance ▁system ▁and ▁better ▁surv iv ability . ▁The ▁Se j il - 3 ▁is ▁more ▁man eu ver able ▁than ▁its ▁prede cess or , ▁making ▁it ▁harder ▁for ▁AB M ▁systems ▁to ▁intercept . ▁The ▁final ▁phase ▁of ▁testing ▁is ▁due ▁to ▁commence ▁in ▁early ▁ 2 0 1 6 , ▁with ▁entry ▁into ▁service ▁by ▁ 2 0 1 7 . ▁ ▁See ▁also ▁ ▁Military ▁of ▁Iran ▁Iran ' s ▁miss ile ▁forces ▁Iran ian ▁military ▁industry ▁Equ ip ment ▁of ▁the ▁Iran ian ▁Army ▁ ▁External ▁links ▁ ▁CS IS ▁Miss ile ▁Th re at ▁- ▁Se j j il ▁ ▁References ▁▁ ▁Category : We ap ons ▁of ▁Iran ▁Category : B all istic ▁miss iles ▁of ▁Iran ▁Category : Med ium - range ▁ball