The STEYR HS .50 M1 is the evolution of the well known STEYR HS .50. but the 5 round magazine makes the rifle even more powerful. The STEYR HS .50 M1 features additionally to the STEYR HS .50:? 5 round magazine? Long Picatinny rail system with Picatinny rails on the side? Adjustable cheekpiece ? Newly designed and fixable bipod ? Spine at the buttstock Steyr HS50 M1 .50 BMG Rifle 61.020.1