not at all, why new trigger?Does it really need a new trigger? From what I'm reading, the 457s have superb triggers. Like, CZ really nailed it. Unlike the 452 where you either had to play with springs until you got something decent or, as I did, replace with a Rifle Basix... or the 455s where the same thing applied, but the set trigger pull was pretty awesome.
well, you can customize it to infinity, of course, replacing parts, but, the stock trigger is very nice. i set it to the 1.5# pull, and i like it this way, i have same pull set on the bergara. some who want less, say, a 1# may want to replace, but, i do not see a practical reason for it, but, i do not compete with it. OOB trigger is set to 4.5#, i think. it is easy to adjust.
link to a trigger guy i gave as he makes a ton of accessories. you will need a rail, to begin with.
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