Mantis BlackbeardX Auto-Resetting Trigger System with Analytics and Smart Feedback for AR15 Leather Belts The bungee retention system is

The bungee retention system is both adjustable and removable

High-Res Iron Discrimination™: Allows user to set iron discrimination to one of 40 levels for precise ability to separate good targets from trash

2 CR123 batteries (included)

Fits (Model): M&P® Shield™ EZ

Mantis BlackbeardX Auto-Resetting Trigger System with Analytics and Smart Feedback for AR15 Leather Belts The bungee retention system isThe BlackbeardX takes the capability of the Blackbeard into an entirely new dimension. The BlackbeardX contains the MantisX technology that has changed the way shooter improve. Providing real time feedback on shooting technique, with smart coaching and actionable analytics via the MantisX Pistol Rifle app: Android devices (GooglePlay): Android MantisX app iOS devices (App Store): iOS MantisX app You'll never improve faster than with this powerful