Benchmade 9500SBK Mini Stryker Automatic Knife 

Partially Serrated blade

Pure cutting power unleashed with the push of a button. The Benchmade 9530SBT Mini Stryker features a black coated 154-CM tanto-point style blade. Machined aluminum handles are sized and shaped to enhance performance on both ends of the knife. Removeable steel carry-clip. Perfect for military, law enforcement, and fire fighters. The Auto Stryker hits hard and fast with optimal performance!

Blade: 2.9"
Overall: 7.1"
Weight: 2.9oz 

You must be 21 years old and be a member of the military, police, firemen, or civil employee to purchase automatic knives.