It's the compact Xcortech XT301 MKII tracer unit in this Krispy Tactical unboxing and review episode. He likes what he sees in this small package... "In today's unboxing I review the Xcortech XT301 MKII Compact Airsoft Tracer Unit. This small but mighty tracer unit packs a punch!"

FEATURES:

• less than 2.5-in. long and a little over 1-in. in diameter
• High power UV LED technology illuminators
• Built-in motion sensor; On and Off power controlled automatically by the sensor
• Can sustain 35 (2100 RPM) rounds per second
• Built-in rechargeable lithium battery and USB charging port
• Integrated battery level indicator; battery lasts up to 20,000 rounds!
• Tracer unit fits in other Airsoft suppressor shells that fall within specifications
• 11mm Positive threads; package includes adapter to 14mm Negative threads"