Modified gas trap front sight

[RCS]

I saw your photos on the other website. here is a quiz that I sent to my friend: only one part in eack photo is an original Springfield part.Attachment 23593Attachment 23592Attachment 23591

Information

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[Mark in Rochester]

I saw your photos on the other website. here is a quiz that I sent to my friend: only one part in eack photo is an original Springfield part.Attachment 23593Attachment 23592Attachment 23591

Just a guess

first picture - middle one

second - barrel in front

thire - first on the left

[RCS]

Mark, the barrel in the center is an original gas trap barrel and marked D-28286 heat lot T-2,
the other two barrels had threaded sleeves installed then machined/threaded to fit the gas trap cylindersAttachment 23633