Originally Posted by tc1446
Good suggestions above; another excellent product that leaves a barrier shield is G96....liquid or spray. Been using it for good many years on everything other than sliding/pressure points. To get the type rust you've shown, you must perspire a lot or work in highly humid environment. Almost need to clean it every day. Let us know how it goes................
Can give this a solid "true dat."
Been using the G96 Complete Gun Treatment (the spray) for probably 20 years. Always have a can on my bench. Have tried a lot of the other well-known CLPs -- and even still keep small containers of Ballistol (spray) and FP-10 (liquid) in my range & hunting bags. For the bags, I like the little 1.5 ounce Ballistol for a spray and I put some FP-10 in the little 1 oz. GI bottles. Both are compact, don't leak and get the job done if need be at the range or back at the vehicle.
If I had to trust a one-product solution, though, the G96 would be it. It's a decent enough cleaner, decent enough lube ... but an excellent protectant.
The 12 ounce can of G-96 aerosol runs about $15 on Amazon and, IME, will last most people a long, long time. They also have a 4.5 ounce can, but I have enough guns/use it often enough that I just buy the taller can to keep on my bench.
Re Sigs, I only have one, the SP2022, and it's been flawless and is a bargain at the price, IMO. That said, it's a full-size double-stack 9 and one has to be comfortable with a true DA/SA trigger to run it well. Given it's size, not a great CC choice for my needs.
For CC in a 9, I like the Shield with the plus-2 mag, generally in a IWB kydex. I also have carried an LCP in a pocket holster and a S&W 642, either in a pocket holster or kydex IWB. I'm a beefy sort and do sweat. Some visible holster wear on the blued guns, but no rust. They're regularly wiped down with a G-96 rag.