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Discussion Starter · #1 · (Edited)
WTS: Sig M400 11.5" Complete Upper (Like New)

I purchased this Sig M400 11.5" complete upper brand new. I function tested and zeroed it. I then cleaned it and put it back in the safe. It is very accurate and a lot of fun.

$950 (+ shipping). I accept DISCREET Paypal (+3.5%) and USPS money orders. Cross posted.


Chrome lined 5.56 NATO barrel (1:7 Twist) Free-floating military grade.
Direct Impingement operating system
M1913 Picatinny flat top upper
7075-T6 Aircraft grade aluminum upper & lower receiver with hard coat anodize finish


Rear Flip-up iron sight
Quad Rail
Rail Covers

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