Real Avid Shotgun Tool Core - No-nonsense, carry anywhere, hard-core, keep your gun shooting functionality. Change choke tubes, punch pins, and adjust scopes. Fits .410, 28, 20, 16, 12, 10 ga. and adjusts red dot optics Has an universal choke wrench 1.5in knife blade hull extractor tip bottle opener tube wrench large and small punch cord cutter