Good to know it can be done! Better to know that I'm better off just giving it to a gunsmith to do. Thank you!!Yes doable. I did mine with an AHR replacement for the factory set trigger that came on the rifle But I was not comfortable with how it was set up. So I had my gunsmith, who was also doing the tricky Winchester M70 safety conversion on the rifle, double check it. He said it was fine and said those triggers are what they are...
IMO, the issue with the BRNO design is the whole sear/ trigger mechanism is a Rube Goldberg funky doodle design from the get go. The sear mechanism is anchored to the action while the trigger mechanism is anchored to the stock! Study most any better and elegant trigger designs and both the sear and trigger will be part of the action group- not one attached to the action with the other attached to the stock! Any variation in the stock to action fit will also affect the trigger to sear fit. UGH
Long answer, sorry. But yes you can do it by simply removing the set trigger parts and replacing with the one-piece single trigger. The lobed end of the trigger should fit into the tear drop shaped slot in the bottom of the sear with minimum play but should also rotate freely within that tear drop shaped recess in the sear mechanism. If in doubt, take it to a decent gunsmith.
IMO, this is what a serious hunting rifle trigger should look like- robust, simple, fail safe. But that's for a different story.
View attachment 502725
Wow - thank you for the thought out response, I appreciate it. It is a Brno ZKK 602 with the flat faced Glock-like trigger, and does have the safety paddle. It sounds like a smith is the best route.Let us be clear, the trigger is one of the very few things that are genuinely different between a Brno ZKK 600/1/2 and a CZ 550.
The Brno ZKK trigger pivots on an axis located in the trigger guard; the CZ 550 has a more classic trigger group attached to the action.
I am saying this because the original post could be a little confusing to ZKK new comers, it mentions both "Brno", which hints at ZKK 600 (standard) / 601 (short) / 602 (long), and "set trigger", which hints at CZ 550 standard / magnum (long). To complicate things ZKK were available with single direct trigger, single set trigger, and double set trigger. Further, ZKK triggers came in rounded shape and in Glock-like flat shape with a built in safety paddle. Which one are we discussing?
Would you recommend sticking with the factory trigger, or doing the conversion? There is certainly no negative performance, as she's a shooter. BUT I don't love the ergonomics.Let us be clear, the trigger is one of the very few things that are genuinely different between a Brno ZKK 600/1/2 and a CZ 550.