I heard one uniformed officer, I think the sheriff, specifically said they were NOT carrying, and I think he had a reason/amplification but did not pay attention.
thats fair...but i would expect that peace officer would always be in control of his/her actions. if he cant then he should not be carring anyway
I don't know that much about off-duty carry policies but some departments require it and some don't. Some off-duty carry isn't allowed, like at NFL games. I think a lot of cops might make the choice based on circumstance i.e. is the activity likely to be where a threat occurs? That bar in Thousand Oaks is considered "wholesome" as far as bars go and that community is one where people sleep with their doors unlocked and their windows open. College night and line dancing was probably considered as low a threat as possible even though it turned out differently. My guess is that if an off-duty officer is anywhere with their family, they carry if it's allowed.
https://www.nbcnews.com/news/us-news/gun-used-thousand-oaks-bar-shooting-was-glock-21-45-n933976 Glock 21 was used and standard mag sold with it is a 13 round mag.
From an NBC news report, "Six off-duty, unarmed police officers from various agencies were at the bar when the shooting began, according to Dean.”
You can buy 100 round mags for any glock. Glad that dirt bag didn't have one. http://www.climags.com/glock-magazine-9mm-100-round-drum-beta-mag/