Pin-on M16 style bayonet lug.
You will need to cut a slight key-way into your barrel for a .125″ pin (.625″ long) to attach the sight to the barrel (have this done by someone with proper training) This will accept any bayonet for the M16 rifle including the M7, M9, OKC-3S, and more.
Select the correct diameter for the barrel it will be attached to(contact me for custom barrel size)
Weight ~1 ounce
This part is made to order using 3D metal printing and has an approximate 4 week lead time.
***fitting will be required***