AP Customs makes stuff for competitive shooters (and, one would assume, competition shooters). Although I have not yet gotten into 3-gun or similar competitions the shell carrier that I saw today looks like an elegant solution for quick reloads of non-mag fed semi-auto shotguns (video after break).
It also looks like something a competent DIYer could whip up in the garage over the course of a weekend.
Yep if only I could load that fast.
I’m betting he wasn’t breaking 5 seconds the first time he tried it, not even the tenth time he tried it. Looks like a LOT of practice to make use of the gizmo