I received mine today. I really wanted to hate it. It's aluminum. It's light. It feels cheap. But it hits really, really well, as well as the China GG and K-100. Better than any of the many Sigeleis I have. I think the key here is that it is brass from the 510 pin all the way to the switch. No chrome plating, no steel in the way. The spring and button feel really nice. It has a floating center pin. The threads aren't all that bad. Damn, now I have to keep it.
Sentinal clone.jpg Sentinal apart.jpg Sentinal Switch and Connector.jpg