For the most part, I tend to agree with Cary C's observations when pertaining to grips, however I disagree, to a point on this one. If one uses a CLP like Ballistol, there's absolutely no need to remove the grips when cleaning your firearm. This product was formulated over a century ago for the imperial German Army, during the war, to maintain the metallic parts of a rifle, and protect the wooden stocks and their leather boots & gear. Ballistol has a wide range of applications, and I have safely and confidently used it for over 30 years, to not only protect and preserve the metal on my firearms, but also use it on grip materials, such as; ivory, bone, MOP, exotic burls, etc, with fantastic results. While most other cleaners/lubricants oxidize relatively quickly, causing the oil to begin to get thick & sticky, and become hard, this will not occur with Ballistol, because it contains anti oxidants and special oils, which makes it less susceptible to aging.
Ballistol was introduced to my Dad, some 40 years ago by an outstanding gun smith/gun builder friend of his, by the name of Al Capone (not the infamous mobster), and then owner of King's Gun Works in Glendale, CA. I remember that Al had a contact in Italy where he would purchase Ballistol at the time. My Dad was very meticulous and began using it on all his firearms, becoming extremely impressed with the results. In the late '70's, I purchased a new US Arms Abeline .44 mag with the rare (few produced) brushed chrome (Magnaloy) finish and 7.5" bbl. After shooting some rounds through it, I cleaned her inside and out with Ballistol, including the grips. I wrapped the gun in a gun rag, placed it back in the original box, and stored it the first 10+- years in my home (no safe back then), less than 1/2 mile from the beach in Santa Barbara, CA. It's been stored the last 20 years in a safe, but except for checking it for corrosion, it's remained in the safe. Fast forward 30 years, and after reading Lee Martin's very informative and well chronicled history of US Arms/US Sporting Arms, on his website: singleactions.com, I was encouraged to take it out for a spin. Anyway, long and short of it is, that the guns metal & grips were amazingly preserved in the same pristine condition as new, considering being in storage for over 30 years, with nothing done other than coat it inside & out with Ballistol. IMHO, a darn good testament to this products merit.
It's obviously apparent to me that if you use Ballistol, it is absolutely unnecessary to remove the grips! Only my opinion, based on my proven personal experience, and other "proof positive" results experienced by my gun owner friends.
Shadow
PS I'm going to contact Ballistol and inquire whether they need a good PR man on the West Coast? The above almost reads like an advertisement ...... but in all honesty, IT WORKS!