Mastering Guillotine Concepts and Principles by Karel "Silver Fox" Pravec
62 reviews · 4.89 / 5
Karel Pravec · Combo
Fundamental Armbar Mechanics by Karel "Silver Fox" Pravec has 114 customer reviews in this archive, averaging 4.97 out of 5. 97% are five-star and 0 are one or two stars. Reviews run from July 15, 2020 to September 1, 2026. All of them are published below in full, unedited.
25 of these reviewers gave their belt rank when they submitted the review. BJJ Fanatics asks for rank, age and years training at the point of review, so this breakdown is self-reported by the customer.
| Belt | Reviews | Average rating |
|---|---|---|
| Blue | 9 | 5.0 |
| White | 5 | 4.80 |
| Purple | 5 | 5.0 |
| Brown | 5 | 4.80 |
| Black | 1 | 5.0 |

Fundamental Armbar Mechanics by Karel "Silver Fox" Pravec is currently listed on the BJJ Fanatics storefront at $79.00 USD. View Fundamental Armbar Mechanics by Karel "Silver Fox" Pravec on BJJ Fanatics
the perpendicular guard is the inverted arm bar
Exactly as described. Great armbar details.
great details
I think these courses from fox are amazing! I loved the guillotine series as well!! highly recommend
A clear perspective that always stays relevant
Good
sprinkler system of armbars. first is the short arm lock. second is the triangle. third is the omaplata or inverted armlock.
Highly recommended been helping me out with my armbar game
Still working through it but good so far.
Theirs a reason Katel Pravec is called the Silver Fox. The first time I saw the Fox was on the Tristan gym channel. I have love his tips and tricks ever since. Though Karl shares a wealth of information on his own YouTube channel there is a lot more detail in his paid instructional that you will not find there. If you are like me the Fox has been giving me a solid preview of what he has to for years. If you are wondering if it is worth picking up his instructionals , the answer is YES!
Awesome information
covers concepts that had a huge influence on my armbar technique. I apply his details to all my armbars and not just the armbars covered in the video. This is one of the videos I revisit periodically to re-review
Love it
great
Great learned a lot
Pravek armbars use better mechanical principals.
I enjoy this guy's stuff, really worth the time to learn his details, you'll love it ******* your bros up with it
Great tutorial to clean up your technique and to prevent escapes. The more technically sound you are, the better you perform against higher ranks. I have purchased other videos from Master Pravec and watched some of his pupils and they all are very sound in their techniques. He has a great style of instruction that works well with me.
Loved it - love Silverfox - but rather than showing each move 12 times, cut it in half and explore MORE positions
This instructional has made my armbar game more creative. Lots of great details and techniques as well, if you want to be good at armbaring, this instructional is a must have.
Great armbar instructional for beginners to intermediate
A much clearer understanding after studying this instructional
he goes into great detail on each technique.
Up your armbar game!
Professor Pravec has to be one of the most technical instructors yet. Brilliant instructional with amazing detail. Strangely enough what fascinates me is when professor Pravec is teaching, everything he does is so smooth and precise. His transitions are like silk and just reinforces the notion of technique first over everything. Great instructional to show how to keep attacking from various positions with minimal brute strength. This is just amazing! Buy it for sure!
62 reviews · 4.89 / 5
44 reviews · 4.95 / 5
24 reviews · 5.0 / 5
Every number on this page is computed from the 114 reviews above at build time, out of 87,673 in the full archive. See the methodology for how the corpus is collected and what is excluded.