Little Jack
Master
M4E1 lower with threaded M4E1 upper. $130 OTD.
Slight price break for multiple sets. I'll have to order these.
Details at the link: https://www.aeroprecisionusa.com/m4e1-threaded-receiver-set-black
Slight price break for multiple sets. I'll have to order these.
Details at the link: https://www.aeroprecisionusa.com/m4e1-threaded-receiver-set-black