Prism Arms - K-Industries Snap On Flared Magwell [For VFC and Vipertech M4/AR GBBR]

Simple and easy, the screw-less flared magwell gives you a much easier time reloading, while being very low profile and still removable.

Print in PLA+ or stronger (Just make sure the material has some flex if you ever want to remove it)

Print with Standard Snug supports, and if possible use interfacing materials.