The Mamba is different from the RATTL-R in that it’s either in FRT or safe. I have a gen 2 SBR in 10mm. 

Installation takes time and there’s a lot of little parts you need to keep track of but overall the video is pretty simple. Haven’t seen a mamba video yet and The only real difference is you don’t mess with the safety selector, you leave it alone.  Not the most obvious thing on the website, it’s in text under the video. 

Banging out the pin that holds the mamba to the trigger is a pain and you need a good backstop. I tried it from the direction the guy did but it wouldn’t budge. Flipped it over and it was fine to bang out. Bent my punch!

Shooting: well it’s good and bad news. 

GOOD: the Vector was meant to shoot this way. It’s relatively easy to keep it on target. Unlike my tx22 which is a wild child with an FRT. I was so happy. The mamba part seems really well made and the price is reasonable for what it lets you do. 

3-4 round bursts are easy to modulate

BAD: the trigger slaps hard as it resets. I can still feel my finger from shooting and it’s been 10 hours. I found some positions that worked but it’s not like an AR or TX22 it gets pretty authoritative. 

10/10 I love it. Shot 50 rounds to so. Never more than about 7 at a time. 

Hoping a 3 position can be made reliably. 

10mm with Duality Arms Mamba Trigger first impressions