Well, my $433 Sub 2K 40S&W has about $400 in upgrades on the way in addition to the CZ mag release. I went to Mcarbo and went nuts. Trigger kit, muzzle brake, bolt release, rear sight, all steel screws and stainless feed ramp! Nothing I like better than taking a good gun and making it better. I did the same with my CZ's and dropped a bit of coin with CGW and CZ Custom. Every man needs a hobby and that's mine.