Ergo mag well slip on grip. - Ergo AR15/M16/M4 Never Quit Magwell Grips

The Ergo mag well slip on grip does as it was designed do, provide a gripping surface for those situations where a mag well hold/grip is needed. The fit & material are first rate quality, but requires a trigger guard with a detent/swing away capability to put the grip on. This product will NOT work on fixed/cast in trigger guards, so don't waste your time ordering this item if your lower has this fixed trigger guard feature.