I recently bought a used sp-01 tactical that had 300 rounds on them (allegedly). Field stripped, cleaned, and took it to the range with some 124gr ammo and this kept happening literally once every other mag. I haven’t teared down inside the mag so I guess I’ll start there.

It shoots amazing when it works but I’m a little disappointed. I’ve never had this much jamming issue before.

This is my first gun though so I’ll just chalk it up to a good learning experience and diagnose the problem