Apparently not, otherwise you would bought the colt. Take dime and place it on the top of the frame near the front sight of the gun. After triple checking it is unloaded ( once for you, once for me, once just because), practice your dry firing like this. It can be used on an auto, revolver, rifle and I have found that it has been helpful for myself and others over the past 33 yrs. Once you develop the trigger pull on the Sigma, you will find that it translates well to snubbies, rifles, but the greatest benefit will be your accuracy. Be Safe,
Vipermd is spot on with his advice -- I was trained to practice trigger pull while balancing a spent .223 round just behind the front sight -- it really does work and if you practice this, it will smooth out your trigger control.
I have never fired a Sigma -- however, I have lots of experience on striker fired pistols -- if it has a trigger re-set,
that is a great trigger control practice tool.
Case in point: I just bought a Springfield .40 cal XDM with 5.25" match barrel. Practiced dry-firing for a week, took it to the range, fired 240 rds at POST targets -- fired each stage
(25 yd, 15 yd, 7 yd, 4 yd, 2 yd) at timed intervals -- had never fired a Springfield before ever (but have fired lots of revolvers, 1911's, M-9's and other auto pistols). Averaged
104 out of 120 pts each time. Practiced one more week, then shot for qualification -- which requires shooting the course 4times -- averaged 109 out of 120 (minimum score for each round is 96). The point is that "perfect practice makes perfect" the XDM trigger pull was all brand new to me, but like driving a new car, you have to learn how it handles.
bottom line: don't get discouraged, practice, practice re the trigger pull.
The poster who wrote about proper grip is also spot on -- poor grip leads to many FTF (failure to feed), especially stovepipes.
The 7 cardinal rules for firing a pistol:
1. Proper stance
2.Proper grip
3. sight alignment
4. sight picture
5.breath control
6. trigger control
7.followthrough
Hope this helps a little.
