The reason I use adjustable gas blocks," is to fine tune my rifle" to the ammunition I use. When the gas is set to optimum for the ammunition, "the recoil is soft and smooth for faster follow up shots" and the less wear and tear occurs with the rifle. When a rifle's gas port is set up to use true NATO spec ammunition, the rifle may not run reliable with other brands of ammunition. Many barrel manufacturers use over sized gas ports, to reliably run the lower end manufactured ammunition on the market. If your rifle will run reliably with steel case ammunition such as Tula or wolf, then your rifle will be over gassed with Mil spec surplus ammunition. An adjustable gas block will work better with an oversized gas port, since the adj gas block can only restrict the existing gas port.
The down side of an adj gas block is they need maintenance, "meaning a drop or two of oil and then turning the screw in and out full range after shooting" to prevent carbon lock with the adjustment screw.. I have used many types and prefer the SLR, since they are easy to disassemble and clean. That said, "I'm now experimenting with the Superlative Arms "Bleed Off adj gas block" since they claim it will never carbon lock. So far so good, but I will need more bullets down range to verify this claim. The other down side is the need to set the gas block correctly for colder temperatures and as the action becomes dirtier.
With the optimum gas setting, bolt carrier type and recoil buffer system, "the AR can become an amazing, soft shooting, platform" many need to try to appreciate..This works with any AR caliber, and barrel length...
The down side of an adj gas block is they need maintenance, "meaning a drop or two of oil and then turning the screw in and out full range after shooting" to prevent carbon lock with the adjustment screw.. I have used many types and prefer the SLR, since they are easy to disassemble and clean. That said, "I'm now experimenting with the Superlative Arms "Bleed Off adj gas block" since they claim it will never carbon lock. So far so good, but I will need more bullets down range to verify this claim. The other down side is the need to set the gas block correctly for colder temperatures and as the action becomes dirtier.
With the optimum gas setting, bolt carrier type and recoil buffer system, "the AR can become an amazing, soft shooting, platform" many need to try to appreciate..This works with any AR caliber, and barrel length...