ContinentalOp
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642s are DAO. The hammer is enclosed and can't be cocked for SA.
Installed Apex Tactical "Duty/Carry" spring kit in J Frame
- Thread starter mmesa005
- Start date
OP
mmesa005
Member
My error, 637-2
Hopper
Member
Also an Apex fan here for J-Frame triggers. It completely transformed my 640, which definitely did NOT have the type of trigger one would expect in a S&W revolver. I had problems with the Apex kit in my 3" Model 63 (22LR) due to the extended firing pin puncturing the edge of the rimfire brass instead of striking it. I kept the springs intact, but put the stock firing pin back in, and voila, problem solved with 100% ignition so far.
HorizontalMike
US Veteran
Finally Joined the APEX Crowd
I finally installed my APEX Duty/Carry Spring & Firing Pin Kit on my 642 this morning. I had previously done my own honing/polishing of the rebound slide, and other areas of friction. Plus had used a high quality Moly Lube (JetLube-50).
NOW with the APEX springs & firing pin installed, my 10 shot average trigger pull is just ~8lb even.
Shot up most of a box of .38 Federal 158 LRN and had ZERO FTF. Happy camper here
so far. FWIW, I will try shooting reload +Ps with CCI 550 primers and see if the same holds true. Read somewhere that the CCI primers might be stiffer/firmer.
All I know know is that the trigger pull is so buttery smooth and light that I was missing to the right about 8-10 inches at ~15yd...
I'm a lefty so my "unpracticed" DA with this new trigger kind of surprised me. Why was I shooting from 15yd?... I am still trying out my new LabRadar and needed some distance for the radar to work well. Next time I promise to shoot no further than ~7yd to target... 
I finally installed my APEX Duty/Carry Spring & Firing Pin Kit on my 642 this morning. I had previously done my own honing/polishing of the rebound slide, and other areas of friction. Plus had used a high quality Moly Lube (JetLube-50).
NOW with the APEX springs & firing pin installed, my 10 shot average trigger pull is just ~8lb even.
Shot up most of a box of .38 Federal 158 LRN and had ZERO FTF. Happy camper here
so far. FWIW, I will try shooting reload +Ps with CCI 550 primers and see if the same holds true. Read somewhere that the CCI primers might be stiffer/firmer.All I know know is that the trigger pull is so buttery smooth and light that I was missing to the right about 8-10 inches at ~15yd...
I'm a lefty so my "unpracticed" DA with this new trigger kind of surprised me. Why was I shooting from 15yd?... I am still trying out my new LabRadar and needed some distance for the radar to work well. Next time I promise to shoot no further than ~7yd to target... kthom
Member
I feel the same about spring changes. The important thing to remember if you choose to change springs is to go to the range and verify that the ignition and function of the revolver is perfect! The job is NOT done until this is completed!
I am thinking of doing this to my 642 and 640 pro but am on the fence due to these being carry guns and could be used in a lethal force situation at some point. So reliability and such concern me. Do any of you think that changing these guns from factory specs is a good idea? I ask because I am a firearms instructor and would really like to smoothen out my triggers but this is a question I juggle with in doing anything to a factory gun. Just was wondering what everyone's thoughts are on this..
Of course, then the other side of me thinks that I am issued a glock for duty and it has a 5lb pull so what is the issue then, right? grrrr..
Of course, then the other side of me thinks that I am issued a glock for duty and it has a 5lb pull so what is the issue then, right? grrrr..
Might wanna check your depts policy on this....
Here is an example.
An officer shall not alter or modify his firearms, ammunition, or firearm related equipment in any way without the express permission of the Chief of Police or after review and testing by department authorized firearm or defensive tactic instructors.
"His" can have a broad meaning.
I've replaced just the rebound spring and mainspring, without using the Apex firing pin & its spring.
Out of the four parts in the kit, you can choose to use any or all four of the parts. I actually ended up using the Apex firing pin & spring in another gun (my 627 Pro) but used the rebound and main springs in a 442.
My prior department's policy was to make no changes to the issued firearms. With a personally-owned backup gun, we were supposed to write a memo to the Range Master to disclose what, if any, changes were made. The RangeMaster could then disapprove if necessary.
Different grips or grip changes were not necessary to disclose/document.
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