It is roughly equivalent to the CZ 75D Compact in 9mm.
CZ has a lot of mix-and-match parts that can be combined into new variations. But one thing unique to the Comp-L is the aluminum frame. The dust cover is slab-sided, and extended right to the muzzle. This allows just enough room to add a short rail with a single cross-sight, for light or laser. The CZ compacts have a shorter grip with two fewer rounds in the magazine, shorter barrel and slide, and no rails, all in the effort to make a shorter, lighter, handier weapon for people who desire those qualities.
But, for CZ-USA only, the factory in Brno makes the Comp-L, and ships it to this country like any other of their products, complete with the usual final exam papers. But from there it goes to CZ Custom Shop, where their resident Scottish mad scientist, Angus Hobdell, puts them through more transformations, resulting in a second certificate, showing the improvements.
Visible changes include the longer SP01 slide release, Hogue aluminum "gunfighter" grips, and even further refinement of trigger quality. But the biggest change is accuracy, which changed from the usual CZ "not too shabby" to "OMG!". It's then packed back in the American BATFE-compliant packaging, with Angus's smiling face added to a sticker to make the box stand out from the other CZ inventory.
That was the extent of our analysis until Friday, when professional gun writer James Tarr came in to pick up his almost-secret Glock evaluation guns. He was stuned to see that last of the five CompLs still in the box, waiting for the owner to take it off of layaway. Looking at it, he recognized it as the production version of Angus's custom piece that he'd been carrying for over two years. For all we know, which still isn't much, those five may be the first ones allowed outside and into the real world. He griped that nobody called him to let him know they came in, and left with new owners, about a month ago.
To which Mike, the owner's son, said, "well, if you came in more than once a month, rather than jetting all over the world getting paid to shoot someone else's guns, you could have had one. But we had no idea they were in that last shipment, and still no better idea when we looked at it, trying to figure out why it existed. Now you know to squeeze Angus for more answers, and probably get paid to write an article on it if we ever see another one". Tarr had snagged the first-and-only CZ P09 in 9mm when it got to the store, while I beat him out to the first-and-only (at that time) P09 in .40S&W. He just doesn't know that it was me, and I'm not going to volunteer. I'm already under surveillance by a couple of wealthy old Colt collectors for beating them out on those two Pythons.
Sometimes it pays to work in the rice paddy every day, because on rare occasions that makes you the early bird that gets the worm. :)