Cleaning and lubricating your bolt carrier group (BCG) is a critical part of maintenance for your AR-15 rifle. A properly lubricated BCG will ensure reliable function and long-term durability. But with so many different lubricants and oils on the market, it can be difficult to know which one is best for your BCG. In this article, we’ll walk you through the steps of how to oil bolt carrier group properly, so you can keep your AR-15 running like new.
Before you get started, it’s important to have the right tools and supplies on hand. You’ll need a clean rag or paper towel, a latex glove (optional), and a small bottle of oil. For oil, we recommend using a quality gun oil or CLP (cleaner, lubricant, protectant). We do not recommend using WD-40 or other household oils, as they can damage the finish on your BCG.
Once you have your supplies gathered, follow these steps to oil your BCG:
- Start by making sure your BCG is clean. If it’s been fired recently, you’ll need to remove all the carbon buildup from the surface. This can be done with a brush and some solvent, or you can use a commercial carbon cleaner like Bolt Carrier Group Cleaner.
- With the BCG clean, apply a small amount of oil to a rag or paper towel.
- Wipe down the entire surface of the BCG, making sure to get all the nooks and crannies.
- Once the BCG is coated with a thin layer of oil, you’re done! Be sure to check your owner’s manual for specific recommendations on how often to oil your BCG.