FEATURES -7 slots, max overall length of 3.3" -For use with all M-LOK compatible hand guards & forends -Allows the attachment of various 1913 Picatinny spec rail-mounted accessories -Machined from mil-spec anodized aluminum -Beveled ends reduce snagging & eliminate sharp corners & edges -All hardware necessary for attachment directly to M-LOK slots on either aluminum or polymer hand guard & forends if included