First Strike/Tiberius Arms ULS Undermount Tac Rail Magfed Markers It enables the ETEK5 to

It enables the ETEK5 to be more gentle on paint whilst also reducing recoil

The ear pieces are designed to cup around your ears so your ears can sit in a very natural position and your hearing with the goggle on is just like it was without the goggle

and break-beam anti-chop eyes

Fits Picatinny and Weaver style rails

The spring floor tray also ensures ball feeding while shooting at elevated targets by raising the floor as you shoot

First Strike/Tiberius Arms ULS Undermount Tac Rail Magfed Markers It enables the ETEK5 toCustom Mispec Tac Rail mounts directly under barrel of T8. 1 or T9. 1 (in pistol form) for attaching standard tac rail accessories, including laser, flashlight, and more.