To answer the questions, this trigger was designed and manufactured by ShootingSight. We were, and are, exploring a cooperation with Black Collar to market them, so they sold a small pre-production batch, and might start selling them in the future.
ShootingSight is selling this trigger direct, today. We started shipping the kits to allow a rebuild of the existing cage a few weeks ago, and had been waiting for the cages to come in from CZ. As of a few days ago, we have all the parts, so the drop-in cages are shipping as well.
So for those few who were able to snag one of the pre-production batch sold through Black Collar, those were indeed the first few to market. Now that I have hit full production, the trigger I am selling is the production version of what Black Collar was selling. Testing has suggested that while there is no measurable difference between the Black Collar pre-production version and the production version by ShootingSight, attractive women think guys shooting the ShootingSight version are MUCH more appealing ....
In the meantime, as of early June, we are shipping complete drop-in trigger assemblies, and anticipate that people will begin posting feedback in the next week or so. So by about early July you should start seeing feedback on how good these triggers are. Hint: they are pretty darn good (from a biased opinion).
These are designed with the same boss on the bottom to accept a trigger bow. They ship without a trigger bow, so when you install it, you will re-use the factory bow, or will be able to re-use any after-market upgrade you have installed.
These come with all the springs necessary and will reduce trigger pull down to 4.5 - 5.0lb, with about a 50/50 split between first and second stage loading. Second stage is solid, and there is almost zero felt creep. Reset is short and snappy.
I also sell the trigger spring alone. If you drop that into a factory pack, it will reduce trigger pull to about 6lb. Not as low as many sport shooters prefer, but there is a small market of people who use these guns in a true tactical sense (ie when the 'targets' are shooting back), and with that much adrenaline you do not want a light trigger. That spring in my trigger pack delivers 4.5 to 5lb because all my sear surfaces are polished and NiB coated, so sear friction is lower.