This is a Magpul Industries Mount known as the M-LOK Offset Light/Optic Mount, model MAG605-BLK.
The M-LOK Offset Light Mount" Polymer provides the user with an ambidextrous platform to mount weapons lights at either the 11 or 1 o'clock positions on M-LOK compatible hand guards and forends. Made from our proprietary heavy-duty polymer" this mounting solution features beveled ends and corners to reduce snagging and sharp edges. The Offset Light Mount allows for the direct attachment of the Surefire(R) M300/600 series of Scout Lights(R) or other MIL-STD-1913 Picatinny light and optic mounts. The optional Magpul Light Mount V-Block and Rings can also be used to attach hand held lights with a diameter from 0.75 to 1.03 in. All hardware necessary for attachment directly to M-LOK Slots on either aluminum or polymer hand guards and forends is included. Made in U.S.A.
Features:
For use with M-LOK compatible hand guards and forends
Heavy duty polymer construction
Positions light at either the 11 or 1 o'clock positions
