-
HRA gas cylinder?
-
How wide do the ears on the front sight measure? That would suggest a maker.
Front Sight Ear widths
SA&HR=5/8 or .625"
HRA ft sights often run from .745" to .785" or more
WIN=13/16 or .8125"
IHC=7/8 or .875"
measured from outside edges the "ears" at widest point.
-
I don't know yet, Kirk.
I am assuming that the sight is SA (based upon pictures).
The lock screw is obviously an HRA.
I know of no way to tell if the high hump is any specific maker.
The rest appears to be HRA, but I am no expert.
-
I seem to remember reading somewhere that an offset stake on the stacking swivel screw was a hallmark of HRA but I could be mistaken.
-
HRA front sight screw had some ribbing around the edges, instead of being smooth. The ribs only go 1/2 way from front to back or so. My HRA front sight has this screw.
So...that would at least cover the front sight screw :P
http://battlerifle0.tripod.com/id6.html
