[img]https://i.imgur.com/QVcf3S3.jpg[/img] [b]Mastering Guillotine Concepts and Principles[/b] Karel "Silver Fox" Pravec | Duration: 2:49 h | Video: H264 1280x720 | Audio: AAC 44,1 kHz 2ch | 2,96 GB | Language: English With nearly three decades of BJJ study under his belt, The Silver Fox is a wor.