I am wondering about variations in UTG rail height measurement?
I measured my three Norc 2007 models, and my three measurements were consistent. Before final tightening of the hand guard, I smacked the UTG down nice and tight, front and back. I also squared the top of the rail with the top of the receiver, and centered the BIG mounting screw hole in the side rail mount with the SMALLER screw hole in the side of the receiver, before tightening up the side screw, and then the four screws on the barrel bands.
This procedure seems to locate the UTG rail consistently for me on all three of my receivers.
With the UTG forend design, the rear end is held only at the side, so some rotation of the entire handguard out of true vertical alignment is a possibility, if the barrel band screws are tightened up first, and the side screw tightened up with out centering/aligning the side mount screw holes, and tightened up last???
I also wonder if there are any differences in height between the step at the barrel [ 1.1" approx ] to receiver. Do we have any numbers for this dimension???
ANY M14 UTG railed handguard "extension" or add on, depends on consistent rail heights at the front of the receiver, and proper hand guard rail rotational alignment for perfect alignment of the scope. If there are variations in the Chinese receivers, rather than variations caused by inconsistent mounting techniques, then I will have to add in some adjustability to my UTG rear mount design. While this could be done rather easily, I would prefer NOT to have to do this, as my design philosophy has always been,
"KISS",
"parts left out cost nothing and rarely break",
and " one piece that does several things things is better than several pieces".
So if I can make my UTG rear mount add on,one piece/ monolithic,
AND make it a universal fit, I would be happier.
Feedback would be appreciated ...
and how is the field testing going with the Fabsport clip guide UTG rear extension mount??
TESTS using an expensive scope to bridge two separate mount locations on an already notoriously hard on scopes M14, is something I really would like to hear about from others first.
of course,
YPMMV
[;{)
LAZ 1