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Yes, info below. https://caagearup.com/product/mck21-micro-conversion-kit-glock-20-21/

I would contact them at https://caagearup.com/product/mck21-micro-conversion-kit-glock-20-21/

Hi Joseph and welcome. Yes but, you would need this Gen2 Gen5 Only Glock CAA MCK Kit : https://caagearup.com/product/glock-22-23-gen-5-only-micro-conversion-kit-gen-2/

Hi Joseph, yes sir, Compatible w/ Glock 20 / 21 / 21 SF (models that have Universal Glock Rail)* *Not compatible with Gen1 & Gen2 models of Glock https://caagearup.com/product/mck21-micro-conversion-kit-glock-20-21/ Stay safe & have a great day!