P/N: AXL-17123-RAC-KIT: The AXL GEN II RAC Kit allows you to easily attach OTTO NoizeBarrier TAC & Range SA tactical headsets to your tactical helmet. Giving you all the advantages of a rear mounted headset system without having to completely upgrade to the full Ops-Core AMP Headset. Easy/straight forward installation with video instructions.  The new GEN II option is a cradle upgrade exclusively for Peltor and OTTO headsets. It is the easiest headset installation.  Kit includes all original Ops-Core hardware. This will allow you to use the mounts with an Ops-Core AMP headset, perfect when upgrading to the complete AMP headset. Rear mounts are compatible with standard Military & Public Safety Helmet Rail Systems: Ops-Core/FAST/ARC, Team Wendy/EXFIL & Hard Head Vets/M-LOK/MTEK. Features & benefits to the AXL RAC: Original Ops-Core Rail Mounts Options for All Helmet Rail Types Non-Destructive, Simple Installation Strong, Low Profile Interface  Compatible w/ TAC(Comms) & Range SA(hearing Protection) versions of the NoizeBarrier Headset Complete Kit to Adapt Your Headset to Rear Mounts *Built & Designed for (2023) Newest Version of the OTTO Tac Noizebarrier Headset* ***Limited quantities and versions available*****ETAs will vary. Click Here If You Already Have Ops-Core Mounts & Only Need the AXL Adapters AXL Warranty  For installation instructions, see the following videos below AXL RAC Link Install Instructions 30 Day Fit & Function Money Back Guarantee. Purchase with Confidence. 12 Month 100% Free Replacement Warranty We have the best/easiest exchange & return process. Purchase with confidence. If you have any questions we are standing by to help.