https://www.hiperfire.com/product/hipertouch24e/
https://www.joeboboutfitters.com/Hiperf ... hpt24e.htm
Joe Bob's has them on sale...excellent price. I have this one, the 24E on a bull barreled 223 Wylde and the EDT3 on my 450 Bushmaster. I didn't want to go too light on the Thumper.
Dan