Advantages of an adjustable gas block for AR-15?

Unless you have a specific need to tune the gas system, save your money and put it into another accessory or ammo that will serve a need/purpose. Technically you could adjust the gas system, tune it down so that less gas is being diverted resulting in less rearward impulse in cycling which could lessen recoil. That said, the 5.56 doesn't have much recoil to start with, and depending on what round you are shooting and the amounts of powder that are used, you could end up short-stroking (the bcg not travelling far enough back to eject the spent shell and chamber a new round). That is just asking for reliability issues in the future. If it was a purpose built, competition rifle, and you were only planning on using one brand of ammo, then maybe that could be a reason to go that route, but otherwise stick with what you have and invest your money elsewhere. For most people/rifles there is no need for gas block adjustments (aside from very specific tuning applications). I say upgrade your trigger, optics, or more ammo; something that WILL give you better performance. No need to throw money at a problem that you don't have. Good luck, happy hunting-

Ar Adjustable Gas Block

Ar 15 Adjustable Gas Block

I have adjustable gas blocks 4 of my AR's and I will only ever use adjustable gas blocks from here on out. The sad reality is that most AR shooters will spend more money on their gun than on ammo and will never shoot it enough to understand the benefit of a tuned gun. The fact you only run 1 kind of ammo makes you benefit even more from an adjustable gas block than someone that runs all kinds. The idea is not to change it daily, it is to set it and leave it.

Perfectly balancing the gas system with your ammo and the buffer means you have a much smoother running gun, with less recoil and less wear on parts. Generally carbine length gas systems come overgassed out of the factory. That lets them run more ammo without short stroking. It also destroys bolts. A bolt that might have lasted 10,000+ rounds in another gun will fail around the 2000+ mark.

Having said all that, the Govnah is overpriced and over bulked. You can get an adjustable gas block for half that or less. From the look of it, they built to it only fit under a handguard that is compatible with an Adams arms (standard) piston kit. Not all rails allow that. More importantly to you, the only Daniel Defense rail that would for sure fit over it is the Omega.

I would suggest the Spikes, PRI, seekins, BTE or even the Syrac adjustables over the one you are looking at. They are half the price and will fit under any free floating.

Buy a fancy folding stock. If you don't need it why buy more trouble? I suppose putting money on ammo and range time is a better allocation of my resources seems better than making more work having to adjust the block for *optimal* spitting out of casings in a rifle that doesn't have that problem. MHO.

If it's not broke don't fix it. I don't really see how an adjustable gas block would be considered a dress up item,but each to his own. Hanging an unneeded part off a gun seems like a waste of time and money to me.