Originally Posted By: billt460
Remington 870, 1100, and 1187 trigger groups will run reliably with an unbelievable amount of gunk in them. I've seen them literally packed solid with unburned powder flakes, carbon, and crusty old lube. And still keep banging away. That said they are easy to keep clean. You don't need strong solvents. It's amazing what will wash out of them with Kerosene and a stiff bristled paint brush.
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People often ask me what the best way to clean deep nooks and crannies is. I tell them a paint brush with long, stiff bristles to reach way in and sweep out the crud. You can wrap the metal band of the paint brush in duct tape to avoid scratches.
If someone wants an aerosol solvent to blast off parts and make them totally dry, electrical contact cleaner works well and is much more gentle than non-chlorinated brake parts cleaner yet still much cheaper than something like powder blast.