Parts list:
Lower -
Spikes stripped lower
Spikes enhanced lpk
BCM H2 Buffer
BCM Buffer Spring
Magpul ASAP
Upper
Spikes M4 upper
Spikes Radical Charging Handle
Spikes BCG
Spikes pistol gas tube.
Ballistic Advantage 7.5" Barrel with pinned LP Gasblock
Novekse KX5
Geissele MK 8 9.5" MLOK rail
Magpul AVG MLOK
Magpul BUIS
Questions
The timing is off on the KX5 by 180 degrees using the crush washer. The pig started at the 10 o'clock then tightens with the crush washer left it at 3 (upside down pig!)
So I am thinking about ditching the crush washer and using shims? Do they make nitride/melonite shims? Having trouble finding some. Would like your thoughts.
Now for safety testing. The lower functions as intended per the fostech function check video.
Upper and lower mate like a dream. Going to test basic function with some zoom caps and check head space. Anything else I should do?
Thanks all, it was a fun process. Spent more than I would have liked, and holding out for a DDM4 PDW would have been easier. But I've learned alot, and don't have to search and overpay for 300 BLK ammo. (Have 5.56 ammo already)