Shortly after SHOT Show 2015 I received a small little box in the mail from ODIN Workswith a really cool little KeyMod handstop inside of it. I was told to wait until they introduced it to post pics of it so I have been waiting. Not sure if there was ever a specific release date on it but I noticed that they were shown in-stock on their website and thought I would share a few pics of mine.
The B1 Handstop is machined from aluminum but is still lightweight because it is pretty tiny. At first I thought it was going to be too small but once you install it and place your hand on it, it works great. You basically place your Pinky and Ring Finger on the angled portion with your middle finger against the front of the handstop. Kind of reminds me of a miniature version of the AFG.
I have had mine installed on a Geissele SMR MK4 ever since I received it and really like it. One of the features I like most about it is that it is very small. Being that its made of aluminum, its super solid as well.