The CompTac QB Kydex Outside the Waistband holster are universal holsters that can fit multiple different handguns. For example, size 3 can fit the Glock 43 , Smith & Wesson M&P Shield , Springfield Armory XD-S , and Walther PPS. Email us at Techsales@opticsplanet.com and we can help to find the holster that fits your handgun.
No it will not.
Yes, MPN: 739189112715 which is the QB-4 model will accommodate your 1911.