Try here: budsgunshop.com/product_info.php/products_id/120913/ruger+57+black+10+rounds+5.7mm+x+28mm+pistol

Good evening to you!! Please see below link for more information. As other have specified the 5.7 is a complex firearm to own in the non free State of Illinois. Hope this helps. Have a good rest of your day.
🇺🇸🇺🇸 'Merica' 🇺🇸🇺🇸
budsgunshop.com/feeds/state_reg/illinois_restrictions.pdf

With all the complexities of owning a Ruger 5.7, make a call to your local gun store and ask them. They have to know the law with regards to that pistol, and any other one for that matter.
We are all fellow customers and may or may not know the exact laws for your state.

Hi Marcus, the Ruger 5.7 is legal in Illinois (without the 20rd magazine)
Assault Weapon Definition
Under Illinois law, an "assault weapon" includes any semi-automatic pistol that has the capacity to accept a detachable magazine and features such as:
A threaded barrel
A second pistol grip
A flash suppressor
A buffer tube or arm brace
The Ruger 5.7 has the following characteristics:
It accepts a detachable magazine.
It does not have a threaded barrel or a flash suppressor.
Conclusion
Based on its specifications, the Ruger 5.7 does not fall under the definition of an assault weapon in Illinois. Therefore, it is legal to own and possess the Ruger 5.7 pistol in the state, provided that the owner has a valid Firearm Owner's Identification (FOID) card.
budsgunshop.com/product_info.php/products_id/120913/ruger+57+black+10+rounds+5.7mm+x+28mm+pistol ,
Stay safe & have a great day!

Hi Marcus and welcome. The legality of the Ruger 5.7 pistol in Illinois is complex and depends on the specific model and whether it was purchased before the 2023 assault weapons ban. Since the ban, semi-automatic pistols with a detachable magazine and two or more specific features (like a threaded barrel or barrel shroud) are prohibited. While the Ruger 5.7 might have multiple features that would fall under this ban if sold after January 1, 2023, existing owners who purchased their pistol before the ban can keep it by registering it with the state. Cheers, stay safe and enjoy!

The standard Ruger 5.7 pistol is legal in Illinois as long as it was purchased before the state's assault weapon ban took effect and is registered. However, any state-compliant or "fixed magazine" models might have their own separate legalities, and the pistol's features (like its detachable magazine capacity) may have their own separate regulations depending on the specific version.
Key details to understand
The Illinois Assault Weapons Ban: The Protect Illinois Communities Act (PICA), which went into effect in January 2023, banned certain firearms and magazine capacities.
Grandfather clause: Illinois residents could keep "assault weapons" they owned before the ban went into effect, provided they registered them with the Illinois State Police by the end of 2023.
The Ruger 5.7: The Ruger 5.7 pistol is not explicitly named on the list of banned firearms under the new law.
Magazine capacity: However, the ban does regulate certain types of magazines, such as those with a capacity of 15 or more rounds for pistols, and the Ruger 5.7 magazine has 20 rounds.
State-compliant models: The state-compliant model of the Ruger 5.7 is legal to own in Illinois, but it must be purchased before the ban goes into effect or have a modified magazine.
Registration requirements: All Illinois residents must register their firearms before the end of 2023.