Got no need for these. They're brand new, stock does not include buffer or spring. New value is around $70. I'd trade for a good push-button swivel sling attachment, common bolt carrier group parts, (gas rings, cam pins, extractor/ejectors & spring, firing pins), a rail-mounted sling attachment, and misc lower parts/springs, etc. If you've got internal AR junk, let me know, I used up most of mine on my latest Frankengun and like to have spares.