I spoke to them on the phone and inquired about the ALG rails.
The line was halted due to covid manpower shortages and they are slowly ramping up staff to fill both orders and catalog items, with plans to slowly reintroduce the ALG line in some form, but right now all they have available are the V3X rails as they use them on their El Jefe rifles.
So hopefully some time soon we will see more sizes and more variations again.