Spacer - Standard for Comp™ M4 / M4sfits QRP2 / TNP / LRP mounts
-Standard Spacer for Comp™M4 / M4s sight models, can also be used with Comp™M3 / ML3 and PRO™ optics in conjunction with Base and Top Ring, Item No. 12194
-Mount raises height of optical axis from 30 to 39 mm
