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1,239 Posts
The BRNO 4 trigger is only adjustable for trigger pull weight. Mine came with a weaker factory spring than the current 452's, but it still needed lightening for my purposes. Creep can be reduced the same way as the current 452's. Basicly the trigger is identical, except for the sear detent ball is captive and will not fly away during disassembly/reassembly.