I swear by the stuff. I have an Ed Brown SF 1911 and the gun shop I bought it from included a vial of the Gun Butter when I bought the gun. Had never heard of it before. I use the stuff on everything. My 1911, Walther, Glocks, even my AR. Works great and makes cleaning a breeze. Even when I use dirty russion ammo in my ar, the stuff just wipes clean.