Any one ever seen one of these before, or have any experience with one? Wondering if they function, and why would go thru all the trouble.
https://www.gunbroker.com/item/911426999
Who makes the best 22LR conversion kit for the AR-15 ? Looking for a kit that is reliable and functions well. Please let me know your opinions and experiences. Would be using it in a Colt or Bushmaster.