These blem blocks could have any of the following.
-A scratch or two
-No gas port witness hole (older variant)
-Not the greatest finish.
Those issues aside, still a badass Wojtek block that kicks ass!
Bought a rail but need a good gas block? Like fiddling around with your gas hole? Look no further! Weighing in at 1.3oz, this .625 gas block is fully adjustable via a screw in the front and lockable via a screw in the side. This block is attached to your barrel by compression which is attained by tightening the three screws on the bottom. It is suggested that a REMOVABLE thread locker of your choice be used on the screws.
Each gas block comes with a roll pin so there is no need to hunt one down at your local store!
-for .625 gas journal size
-Attachment requires ONLY HAND TIGHTENING
-Gas port is drilled all the way through for ease of alignment with your gas port.
ALLEN KEYS NEEDED FOR THIS BLOCK:
Adjustment screw = 5/64"
Side locking screw = .05"
Attachment screws= 3/32"