Can I use Hoppes No. 9 Bore Cleaner to clean the bore of my rifle?

When using Hoppes #9 be sure all of it is cleaned out of the bore before putting the gun away. Hoppes will deteriorate the chrome lining in a Windham Weaponry barrel if allowed to remain in the bore for too long. No more than 10 or 15 minutes is recommended. Any copper solvent will harm chrome if it’s left in the barrel too long. Just make sure it’s all cleaned out and it will be fine.

How do I clean the rifle’s gas tube?

Cleaning the gas tube is something you really needn’t worry about. For example, our factory endurance gun has over 8,000 rounds through it (without a single malfunction!) and we’re using the same gas tube in it since round number one. It has never been cleaned. They should be replaced after a while but you can put thousands of rounds through one before this is necessary and the barrel might be worn out by the time the gas tube needs replacement anyway. The only things that have been cleaned on that gun in its endurance run are the bolt carrier once after 5000 rounds, and the barrel every 1000 rounds before targeting. We expect the gas tube to easily last as long as the barrel.