Hello,

Thank You for downloading the AR-9 Super (and Basic) Lower V1.2!
See the README for generic info and print settings.

PLA+ will work for all parts. However, Nylon would be best for the ejector. 

You will need: 
3/32" x 1" roll pin for the mag catch lever.
#24 0.5" wide hose clamp. For the buffer tower.
(2) 10/32 x 1.25 Screws. For the swivel pin plates.
(2) 10/32 3/8" wide hex nuts. For the swivel pin plates.
Heavy AR-9 buffer mass.
All other parts can be taken from a standard AR-15 lower build kit. The AR-15 mag catch and mag catch button are not used.

The ejector presses into place without glue. It should be finger tight. Sand to fit if needed.
AR-15 mag catch spring is used with the mag catch lever.

PRINT SETTING FOR EJECTOR AND MAG CATCH:
Four walls.
50 gyroid or honeycomb infill.
four or five top and bottom layers.
All other settings standard. See README.

Improvements in V1.2:
Updated mag position. Better feeding.
Stronger mag catch lever.
Improved suport.

7/31/22 Hoffman Tactical