21st Century - Primer Pocket Plug/O Rings Type:Rings which has spring loaded firing

which has spring loaded firing pins for the ease of tension that is released when a shotgun is fired

Padded backpack strap

UTP-00  BLANK TOP (no hardware and also this plate is wider than the specific ones listed below)

To get the case to the correct size

21st Century - Primer Pocket Plug/O Rings Type:Rings which has spring loaded firingWeighing is a technique used to sort cases based on volume. By plugging the primer pocket, the case can be set on a precise electronic scale, filled with water and weighed. Subtracting the weight of the case and the plug from this measurement gives us the weight of the water in the case (a direct indicator of volume, no math necessary here) and the sorting process can begin.