Adjustable Gas Blocks

Who uses an AGB, and what are the pros and cons? What has your experience been using an AGB?

I have a few.

The pro’s: you can really dial in the recoil and functionality of an ar, especially with a suppressor.

The con’s: getting it set up and also having to adjust it under a rail is a pain.

I agree

Pros: everything except the added complexity.

Cons: added complexity (increased failure points).

The intended purpose matters here. Aside from a life dependent firearm, AGBs are amazing. That said, a set screw backs out and your rifle now has a manual action. I am of the opinion that AGBs should not be used on defense specific guns.

PSA AGBs are awesome, incase you decide to pick one up. Though, I would locktite the set screws before use. Every adjustable gas block I have purchased (regardless of manufacturer) has had set screws back out, or loose from factory.