NPAS buffer/tournament lock

This fits the Angel Custom and the RA-tech NPAS

the way it works is you print them out of TPU (or the strongest solid material you have...TPU highly recommended because of its properties)

unscrew the NPAS adjustment bolt all the way, install as many spacers as necessary, tighten the NPAS down as tight as it will go.


1mm spacer = roughly 50fps, give or take 5-10.

I have these installed in my Open Bolt m4 and they're working a right treat to bring down my fps