4 ▁ ▁R PK - 7 4 M / R PK - 2 0 1 / R PK - 2 0 3 ▁ ▁R PK - 1 6 : ▁The ▁R PK - 1 6 ▁squad ▁automatic ▁weapon ▁is ▁a ▁new ▁light ▁support ▁weapon ▁which ▁is ▁expected ▁to ▁take ▁over ▁the ▁role ▁of ▁its ▁prede cess or , ▁the ▁R PK - 7 4 , ▁in ▁the ▁Russian ▁Ar med ▁Forces . ▁ ▁United ▁Kingdom ▁The ▁SA 8 0 ▁program ▁was ▁designed ▁to ▁create ▁a ▁family ▁of ▁light ▁assault ▁weapons ▁that ▁had ▁a ▁common ality ▁of ▁parts , ▁could ▁use ▁the ▁same ▁am mun ition ▁and ▁mag az ines , ▁and ▁would ▁replace ▁the ▁UK ▁military ' s ▁collection ▁of ▁subm achine ▁guns , ▁rif les , ▁and ▁light ▁machine ▁guns . ▁Origin ally ▁designed ▁around ▁a ▁l ighter ▁experimental ▁ 4 . 8 5 mm ▁cart ridge , ▁they ▁were ▁forced ▁to ▁red es ign ▁the ▁weapon ▁to ▁take ▁the ▁ 5 . 5 6 mm ▁NAT O ▁cart ridge . ▁The ▁L 8 5 ▁I W ▁( Ind ividual ▁We ap on ) ▁was ▁the ▁rif le ▁version ▁and ▁was ▁designed ▁to ▁replace ▁the ▁ 9 mm ▁L 2 ▁Ster ling ▁SM G ▁and ▁ 7 . 6 2 mm ▁L 1 A 1 ▁SL R ▁R if le . ▁The ▁L 8 6 ▁L SW ▁( Light ▁Support ▁We ap on ) ▁was ▁the ▁automatic ▁rif le ▁version ▁and ▁was ▁intended ▁to ▁replace ▁the ▁L 4 ▁BR EN ▁gun ▁and