Sti ar uppers?

Just got my upper from S&J Hardwaer yesterday

Simon there built it with their 14.5 inch barrel and a 12 inch rail of theirs mated to an sti upper and I have to say it is a great upper

I may even like it better then my Valtor MUIR upper. The sti lacks the m4 feed ramps but I have had no feed issues at the range today at all
 
I have one and its fit and finish are good. the only thing with the one i got its not cutt for the M4 feed ramps
 
I have one and its fit and finish are good. the only thing with the one i got its not cutt for the M4 feed ramps

The STI uppers don't have M4 feed ramps but i havent had any feed issues on my upper and dont notice any cycling differences from this upper to my Valto Muir which has M4 feed ramps
 
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