Outers Tri-Care gun lube and cleaner. This stuff works really great on Bh209. And so much easier in my opinion. I squirt a little on a patch and it cleans really well. 4 patches and my gun was done. I actually found this stuff in my basement looking to buy some Montana Extreme. I'm just getting tired of all the mess with Hoppe's and wanted to do something different. Now i need to do a search and order some more.