These are the plastic follower kit with bolt hold open plunger and spring. I converted hundreds of mags during the ban wiht these kits and they work great. I found a few in my shop and thought someone could use them.
I have 6 kits, asking $50 + shipping and paypal for the six. SPF and a waiting list
SPR grip $15 SPF
Armalite Flash hider new in wrapper $35 SPF
Armalite 2 stage match trigger new in wrapper $125 SPF
if you see something you like feel free to make an offer.