If you mean are there any company job specials, faction specials, or boosters that target pistols specifically, then no. And it looks like you've placed your merits already.

Have you equipped any weapon mods for pistols, or loaded any special ammo? If you just equipped the pistol, the ammo for it should start showing in mission rewards.

thanks man ,i thought so

There is a specific edu:
CBT2840 Study of Pistols
Gain a +1.00 accuracy increase with Pistols
Also a job special that would apply:
Firearms Expert gun shop 10*
10% primary & secondary weapon damage

Less specific but:
BIO2350 Evolution
Gain a 1% damage bonus to all weapons
CBT3870 Bachelor of Military Arts and Science
Start gaining weapon experience, specializing in individual weapons for increased damage and accuracy