The 3-Lug Suppressor Mounts are designed around the iconic HK standard. YHM's 3-Lug mount was designed with a 1 3/8-24 thread and can be swapped onto your R9 or Nitro N20 Sound Suppressors. - Replaces your Direct Thread Adapter - Aluminum and Stainless Steel - Matte Black Finish - 1-3/8 -24 Mount Thread Pitch
YANKEE HILL MACHINE | UPC: 841812101677
