The name says it all with the Mantis Blackbeard Auto-Resetting Trigger System for AR-15. What more could you want out of a dry-fire training tool? This Mantis X system eliminates the need to manually run the charging handle between shots because it resets the trigger. The best part of these Laser Trainers is that there are no complicated modifications needed. That means no messing with the trigger group or changing small, intricate parts. The essential components of the Mantis Blackbeard System include a bolt carrier group (BCG) and a magazine. Nothing permanent. Once installed, the Mantis Blackbeard System allows you to take up to 10 shots per second, and each system resets the trigger for that follow-up shot. The Blackbeard Auto-Resetting Trigger System is also available with or without a laser. Laser options include red, green, and infrared so you can see where you are shooting. Improve your AR accuracy and save money on ammo by practicing with the Mantis Blackbeard Auto-Resetting Trigger System for AR-15. Specifications for Mantis Blackbeard the Auto-Resetting Trigger System for AR-15: Manufacturer: Mantis X Color: Red Battery Type: Stand Alone Lithium Gun Model: AR-15 Gun Type: Semi-Automatic Rifle Features of Mantis Blackbeard the Auto-Resetting Trigger System: 650 nm, 60ms pulse duration, Continuous wave for the Red laser 520 nm, 60ms pulse duration, Continuous wave for the Green laser 780 nm, 60ms pulse duration, Continuous wave for the IR laser Package Contents: Mantis Blackbeard the Auto-Resetting Trigger System for AR-15 Drop-in Bolt Carrier Group Magazine