The best-selling AR-15 is designed to be used for target practice, and there are plenty of AR-type accessories on the market today, from cheap mounts to $300 kits that will get you up and running in no time.

But for the hardcore shooter who’s itching to add a little bit of ruggedness to your next gun, AR-style air filters might just be the answer.

This article covers some of the most common AR-like air filters available today, and how you can make your DIY version work on your own rifle.