Are you sure you wish to do this?
I have one used Tacfire 3.5" AR-15 Short Buffer Tube System This short buffer will work with standard bolt carriers. These run about $100 new.I don't have an end plate in the pic but I'll throw one in too. Assembled pic is just to show what it looks like, it's just the buffer assembly that's for sale.I'm looking for $60 $55 $50 shipped in CONUS. Paypal F&F (or you pay fees) Zelle or Venmo.Not really looking for trades but may consider retro parts.