Different Uppers

PSA Products AR-10
1

Hi guys,

Any of you know the difference between this Uppers?

Model: 5165491812 $620
PSA GEN3 PA10 20" RIFLE-LENGTH .308 WIN 1:10 STAINLESS STEEL 15" LIGHTWEIGHT M-LOK UPPER - WITH BCG & CH

Model: 5165491832 $560
PSA GEN3 PA10 20" RIFLE-LENGTH .308 WIN 1:10 STAINLESS STEEL 15" LIGHTWEIGHT M-LOK UPPER - WITH BCG & CH

2

The rails are different.