Lockey - ED61SF - Edge Panic Shield Security Kit - With PB1100 Panic Bar - Fire Rated - Silver Filler Plates The ASSA Key in Knob/Key

The ASSA Key in Knob/Key in Lever cylinders are designed to replace many original manufacturers’ cylinders in their locksets including Arrow

Here's a Video  Explaining How it Works

or Aluminum Screws

Fast key generating time

Lockey - ED61SF - Edge Panic Shield Security Kit - With PB1100 Panic Bar - Fire Rated - Silver Filler Plates The ASSA Key in Knob/KeyKit Includes Edge Style Panic Shield Edge Style Strike Bracket 285P Keyless Keypad Lock Edge Style 285P Gate Box Edge Style Max Guard Edge Style Latch Protector Jamb Stop PB1100 33 Panic Bar Fire Rated Dimensions & Specifications Panic Shield 24 L x (28 54) W x 1 2 D Strike Bracket 4 1 2 L x 3 1 2 W x 1 1 4 D Latch Protector 23 1 2 L x 6 W x 2 1 2 D Jamb Stop 5 L x 2 W x 1 4 D Max Guard 26 L x 4 3 4 W x 3 4 D Lock Gate Box 7 L x 1 3 4 W x 1 1 2 D Lock