Upper and BCG fit

[Dayman]

So my ar build is comming together I picked up a complete upper with out BCG http://palmettostatearmory.com/inde...led-upper-without-bcg-or-charging-handle.html from PSA month or so ago and recently located A PSA BCG from another shop. Should I have anything to worry about since they were not a matched pair or being both PSA am I good to go. Thanks for any help.

 

[fordnut]

Both should be mil. spec. they should work fine. Just oil the BCG up as needed and slap it in...

Steve

 

[Dayman]

Thanks !