Thanks, guys. I'm glad you guys enjoyed the post.
Miguel, I'm always up late and up early. The vise that is used during the training is no longer available. I picked one up back in 2012 and it was already long since discontinued then; just got lucky with an internet find. The products from Present Arms are very capable and modular and for many jobs, I prefer those. I'd recommend checking them out. The owner has made me several HK specific mag posts to use with the base unit too.