Great holster - Safariland 7TS ALS Shoulder Holster

I purchased the 7TS ALS shoulder holster to carry my Sig M18 under an open shirt while wearing shorts during the summer. The thumb button retention works great. I do tend to swipe the safety off when drawing quickly but under emergency conditions that’s a plus. If I’m not immediately firing the weapon I just train to re-engage the safety. As a retired military/police firearms instructor I’ve carried and used shoulder holsters on and off for over 40 plus years. This one works great as my summer carry option. Great purchase!