Always good to have one in the back of the safe and this is cheeeaapp!
https://www.aeroprecisionusa.com/m4e1-threaded-receiver-set-fde
Sent from my SM-N950U using Tapatalk
https://www.aeroprecisionusa.com/m4e1-threaded-receiver-set-fde
Sent from my SM-N950U using Tapatalk