Roller sears

[dustind]

I have an autococker paintball gun that I bought a roller sear for. The trigger pull is about the same cocked and uncocked, a fraction of a pound. I can empty a two houndred round hopper in no time and this thing is semi auto.

I was wondering if any firearms use rollers in the trigger mechanism and if not, why not? Even if the parts get dirty they will still roll, and if they were to lock up they would still slide like normal. I am pretty sure triggers do not get dirty enough for that to matter. I was thinking this would be perfect for all of those AR15s, or maybe they already use them.

 

[Badger Arms]

I think I remember seeing a Smith and Wesson replacement trigger that had roller sears. I think there is a serious safety issue with the concept of a trigger pull THAT light that will prevent manufacturers from pursuing this. Tack-driving rifles seem to be accurate enough with current friction sears. Might be wrong on that one. Good question.

 

[9mmepiphany]

back in the days of PPC, there was a pistolsmith in florida who would put a roll sear into your python...
i belieive cylinder and slide also offer this modification for the smith K/L frame...
there is also some european pistol manufacturer who has a roller sear system in they wheelgun (korth?)

 

[4v50 Gary]

German Korth revolver has a roller sear.

 

[Jim Watson]

back in the days of PPC, there was a pistolsmith in florida who would put a roll sear into your python...
i belieive cylinder and slide also offer this modification for the smith K/L frame

I have shot both. The Sherman roller bearing Colt about 25 years ago. It was exquisite... until the little roller skidded instead of rolling. If you could be sure of the roller rolling all the time it would be great.

I have shot a friend's self-installed C&S roller bearing S&W, too. It is OK, comparable to a fairly good DA job, but nothing close to the Sherman or even a really good conventional trigger job.

 

[9mmepiphany]

i a;ways understood it was more an advantage of durability than smoothness.

i'd never heard of sherman's rollers not rolling...of course when it is your own gun you can just replace them after each season, i guess

 

[bdhawk]

if memory serves, cylinder and slide sells an assembly with roller sears for s&w handguns.

 

[P95Carry]

Nice principle .... but...

I'll take and keep the extra poundage!