

I also have the "D" spring installed in my other 92's with the standard hammer and have never experienced a misfire. Some folks used to warn of using the combination in duty, or defensive pistols due to the possibility of light primer strikes, but my Elite II has never failed to touch off anything I've put through it. Understand that the "D" spring was originally only installed in the DAO Beretta 92's, and then in the various "Elite" models with the skelotonized hammer. They delve into the minutia of recoils springs, hammer springs, firing pin stop shapes and even the shape, finish and angle of hammer cocking faces and their effects on unlocking.Īs far as the Beretta 92 'D" spring, it is an improvement over the standard weight spring as far as trigger feel, but unless you are feeding your pistol a diet of 124gr +p ammo, I doubt you're really going to be able to measure the effects of it on barrel unlocking. While soldiers serving in Iraq and Afghanistan did encounter some reliability issues, most of those issues were based on the cheap Checkmate. If you want to get into the esoterica of the effects of hammer spring weights and their influence over barrel unlocking times, I suggest you head over to a 1911 specific forum and do some reading on the subject from some pretty knowledgeable 1911 smiths. The Beretta M9 is also well known for its reliability. You asked specifically about the purpose of the hammer. I'm genuinely asking and not trying to be a smartass.Many "terms" get bandied about, but "lock time" generally refers to the time from trigger break to cartridge ignition. If the gun is DA/SA wouldn't lock time be all about RSA?
