Whats the difference between these uppers?

[Lazarus]

Does anyone know what the difference is between these two uppers? Is it just that the barrel is nitride vs CHF? Price is $200 vs $270 (usually)

http://palmettostatearmory.com/psa-...paign=Daily+Deal+Email&utm_content=5:00+Email

http://palmettostatearmory.com/psa-10-5-hammer-forged-ar15-upper.html

 

[DanKATL]

Does anyone know what the difference is between these two uppers? Is it just that the barrel is nitride vs CHF? Price is $200 vs $270 (usually)

http://palmettostatearmory.com/psa-10-5-5-56-nato-1-7-nitride-upper-without-bcg-or-charging-handle-507020.html?trk_msg=71B6LQ56G0I4BD8Q6GQPRM33J8&trk_contact=BB5JCINRIVSR2488MTKON8106G&trk_sid=D6S3OOR5UE1BQST54OO0BT12K0&utm_source=Listrak&utm_medium=email&utm_term=http://palmettostatearmory.com/psa-10-5-5-56-nato-1-7-nitride-upper-without-bcg-or-charging-handle-507020.html&utm_campaign=Daily+Deal+Email&utm_content=5:00+Email

http://palmettostatearmory.com/psa-10-5-hammer-forged-ar15-upper.html

If the description is accurate, it looks like just the barrel and T marks.

 

[Lazarus]

If the description is accurate, it looks like just the barrel and T marks.

What are "T marks"?

 

[DanKATL]

What are "T marks"?

Numbers on the rail slots.

 

[KingTuna]

If the CHF is 270, I'd jump on that. Can't beat paying another 70 bucks for a CHF FN barrel.

 

[BIKER13]

we have EXPERTS that will be along to tell you what you need.Be patient