Pros:

It's a very good Skin
sounds are good 
idea is excellent
Best pistol skin i ever saw

Cons:

the silencer texture shows me purple black box color.

the silencer texture of the beretta's  works properly when you have the Glock 18 (silenced uzi) in you're addon list.

Conclusion:

if you could fix the silencer color texture then this is the skin is for me to keep playing ,it only works 100 percent when i'll have the silenced glock installed in the addon list ,then the silenced beretta's uses the silencer skin of the glock

Pros:

very Nice Detailed skin
scope plus scope reflections
laser point
the rest of the addons

Cons:

the 2 bugs you said

The bolt 
ejector (isn't so much the problem)
little thing in the animation when the hand pulls back the bolt it's not pulling on it but the bolt follows the hand

Conclusion:

It's the best tactical detailed scar skin i ever seen after the m4 model i love to use it but the longer i use the model the more irritating about the few little bugs. it's like you said it's a decision you made ,but you know what they say :sometimes less is more.

but again it's super tactical scar i ever seened very very good job of you ,i respect this job.
sorry for the english i'm from holland :)