The SnapPoint SnapPlug Primer Pocket Inserts extend snap cap life & protect your firing pin. FeaturesPress-fit into standard small pistol & rifle primer pockets (9mm, .380, .38 Special, .223, etc.)Durable TPU material for repeated strikesInstalls in seconds - no tools or glue neededReusable & easily replaceableCompatible with SnapPoint dummy rounds & most other brandsIdeal for retrofitting, replacing worn primers, or DIY dummy rounds