HK21E/MSG90 SIGHT TABS
The Scope Tabs are shown on a 21E we built on a registered pushpin machinegun receiver. This is the same arrangement used on the MSG90.With these site tabs you have to use HK's quick detach mount which can run $600 with rings.
You also have the
option of our
and utilize many of the
M-16 flat-top Picattiny rails. The advantage to these is you
can get them in a 3 sided design and varying
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