. 6 2 × 5 1 mm ▁NAT O ▁cal iber ▁M 1 ▁fitted ▁with ▁a ▁remov able ▁ 2 0 - round ▁magazine , ▁fol ding ▁b ip od ▁and ▁a ▁combined ▁flash ▁suppress or / rif le ▁gr en ade ▁launch er . ▁The ▁B M 5 9 ▁is ▁capable ▁of ▁select ive ▁fire . ▁These ▁rif les ▁would ▁also ▁be ▁produced ▁under ▁license ▁in ▁Indones ia ▁as ▁the ▁" SP - 1 " ▁series . ▁ ▁M 1 4 ▁rif le ▁ ▁The ▁M 1 4 ▁rif le , ▁officially ▁the ▁United ▁States ▁R if le , ▁ 7 . 6 2   mm , ▁M 1 4 , ▁is ▁an ▁American ▁select ive ▁fire ▁automatic ▁rif le ▁that ▁fires ▁ 7 . 6 2 × 5 1 mm ▁NAT O   (. 3 0 8 ▁Win chester ) ▁am mun ition . ▁The ▁M 1 4 ▁rif le ▁is ▁basically ▁an ▁improved ▁select - fire ▁M 1 ▁Gar and ▁with ▁a ▁ 2 0 - round ▁magazine . ▁The ▁M 1 4 ▁rif le ▁incorpor ated ▁features ▁of ▁both ▁the ▁M 1 ▁rif le ▁and ▁the ▁M 1 ▁Car bine , ▁including ▁the ▁latter ' s ▁short ▁stroke ▁p ist on ▁design ▁originally ▁developed ▁by ▁Win chester ▁Ar ms . ▁ ▁R ug er ▁M ini - 1 4 ▁ ▁Design ed ▁by ▁L . ▁James ▁S ull ivan ▁and ▁William ▁B . ▁R ug er , ▁and ▁produced ▁by ▁St urm , ▁R ug er ▁& ▁Co .