Description
Threads: 1/2-28, 0.400″ long (rimfire length). We cut a proper thread relief at the base of the threads for compatibility with any 1/2-28 device.
Overall Length:
16.1″ barrel: 22.5″
7″ barrel: 14″
Drop-in compatible with standard AR-15 lowers.





venti (verified owner) –
Amazing quality for ‘economy.’ Way better than CMMG IMO
rosquistmark (verified owner) –
I paired this upper receiver with my AS design ARC fire lower receiver and it functions amazing, tuning is very easy to do. Big bonus to bore buddy for including an optional FRT/SS kit so you don’t have to spend extra money on buying a separate kit.
An FYI to future buyers, the pressure plug indeed helps with reliability, especially in select fire mode. So GET the pressure plug!