I’ll be that guy. I started out using SLR Sentry 7 and Wilson Combat adjustable GB on my SBR’s and precision AR’s. They work great until they don’t.
Since then my opinion on “go-to” rifles or HD/SD rifles is that an adjustable gas block introduces another point of failure that doesn’t exist with a low pro GB for example. If I had a fun, built only for fun - a range toy so to speak, then that might be different. I would agree that there is something to be learned from adjusting a gas block and seeing the impact the volume of gas has on type of bullet, .223 vs. higher pressure 5.56 for example. Or the impact it has on what happens on empty mag lock back, or when the bolt fails to extract. Definitely a learning opportunity and kinda neat to get your AR shooting as soft as possible. However I no longer view that as practical.
Ultimately, I have learned using a combination of things like barrel choice and an A5 buffer system can improve recoil impulse. Someone also taught me running a bead of high temp RTV along the “horseshoe” of the charging handle is a very inexpensive but efficient way to direct gas away from your face, when shooting suppressed, if that’s one of your goals.
I’ve shot one of BRT’s reduced port gas blocks. Shot it on a DD 11.5 (gassy SBR) and I won’t lie, that thing shot so flipping smooth it was like shooting a different rifle altogether.
So for me, it’s not worth it. There are possible some exceptions, but all my AR’s now use standard low-pro GB’s.
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