Anti-dry fire keyway trigger system for crossbows Patent Grant Rowzie, Jr. , et al. Sep [Parker Compound Bows, Inc.]

Anti-dry fire keyway trigger system for crossbows Patent Grant

Killer Instinct Fiery 400 Crossbow Package w/ Crank Cocking

Killer Instinct Fiery 400 Crossbow Package

XB27 crossbow trigger mechanism - for guaranteed safety

GUARDIAN ANTI-DRY-FIRE SCOPE MOUNT – Excalibur Crossbow US

Barnett TS380 Crossbow w/ Anti-Dry Fire Trigger

Excalibur How To: Crossbow Guardian Anti Dry Fire System

US7770567B1 - Safety trigger for a crossbow - Google Patents

Excalibur Guardian Archery Hunting Durable Lightweight

Demonstrating the anti dry fire mechanism on an Excalibur Cros

Instruction - Tip - Anti Dry Fire

Crossbow Safety Mechanism

Project Gridless: How to Fix a Dryfired Crossbow

Anti-dry fire keyway trigger system for crossbows Patent Grant