Magpul miad grip core bolt & pin ok with issues - Magpul MIAD/MOE Core Storage

Magpul MIAD Grip Core Bolt & Pin storage core works, but has issues that I'm just not used to seeing in a Magpul product.
The core does not hold the bolt securely, so you cannot insert the core when the pistol grip is pointed up, less the bolt falls free. The firing pin retainer should be a pressure fit through hole instead of a "clip" as the slightest little "bump", during storage in the pistol grip, knocks the pin free. Finally, the biggest flaw is the alignment of the firing pin when inserting the core. The firing pin eventually will go into the grip hole (after several tries), that allows adjusting of an upper tension screw. It's just harder than it needs to be. A bigger hole might help.

Additionally, there is no provision to store a firing pin retainer cotter pin. This easily lost or broken item, is essential to have on hand for changing a firing pin or bolt. I managed to add one via a small plastic bag wrapped around the bolt tube.

Overall a great idea, but needs some design improvements. I have had five star experience with the other versions of this product.