ProMag

ProMag makes aftermarket magazines for a very wide range of firearms, including a great many for guns whose factory magazines are long out of production or absurdly expensive. That is the real case for the brand: for an orphaned pistol or an obsolete rifle, ProMag is frequently the only option that exists at all.

For a firearm you rely on, factory magazines remain the right answer — the magazine is the single most common cause of a semi-automatic malfunctioning, and it is not the component to economise on. Their steel-lipped and Roller Follower lines address the criticism directly. Number any magazine you buy with a paint pen so one causing problems can be retired rather than staying in rotation.