Yes, this can be adjusted via allen wrench.
This is an adjustable gas block.
Unfortunately the different barrel manufacturers use different specs for their own heavy contour. Please email us at techsales@opticsplanet.com for further assistance.
The Select Adjustable Gas Block has 30 settings allowing specific, fine-tuning to each suppressor or ammo type. Once tuned, this gas block enables the operator to make on-the-fly adjustments as needed with a simple throw lever.
Seekins Precision does not provide dimensions regarding height, they have simply supplied the .750" diameter specification. I apologize for the inconvenience, and I suggest you reach out to the manufacturer directly.
It has a both a short and long lever configuration for unexposed or exposed configuration depending on your gas system.
Seekins Precision does not list this dimension, please contact them directly for further assistance.
Seekins does offer a .875 model, however we do not currently carry it.
Yes it works great, even works on 300 Blackout for easy changes from Sub to Supersonic. Works on Rifle to Pistol length gas system as long as you have a 0.750 diameter barrel.
It comes with two levers one is the same size as the block for under mount. the lever pictured is for mounting ahead of the forearm great product espescialy for people that need more than one setting for suppressed and unsuppressed. I just wish I had found this one before I bought the other two brands