The Anti-Material Rifle Stratagem is first available to purchase at Level 2. Once you hit this rank, you can purchase it from the Ship Management terminal for 5,000 R .

In a post on Reddit, u/TwevOWNED pointed out that the recent buff to the Anti-Material Rifle has made the Railgun a non-viable weapon due to its recent nerf which took away its last main use-case.

The Anti-Material rifle in Helldivers 2 can be obtained during the early hours of the game. Listed below are the various methods that you can use to get your hands on this deadly sniper rifle: Ad.