need help

[Cand T0724]

Can someone tell me. I have a free float quad rail on my ar now. Will a drop in work or do I need another free float?

 

[Kain8719]

Depends on the rail and how it mounts on the rifle. What do you have on it now and what are you wanting to mount on it?

 

[timbgtm]

You need delta ring and depending on front sights(gas block)