You can find the original model here this is TeruTeru's new account on Odysee
https://odysee.com/@Reference_Models:3/CZ-452-2E-ZKM-Carbine:2

STEP and X_T File Format, Teruteru Reverse Engineered this model thank you for your hard work!

The CZ 452, also known as BRNO Model Two .22 Rifle is a series of magazine-fed bolt-action rimfire repeating rifles manufactured by the Czech firearms manufacturer Česká Zbrojovka Uherský Brod (abbreviated "CZ-UB", English: Czech Weapons Factory — Uherský Brod) and imported into the United States by CZ-USA. Most versions of the 452 rifle series were discontinued in 2011 and replaced by the CZ 455, although CZ continues to offer the CZ 452 American in a left-hand model, with the bolt handle and ejection port located on the left side of the rifle.