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.
Price is $1025 (shipped). I accept DISCREET Paypal (+3.5%) and USPS money orders. Cross posted.
Direct Impingement operating system
5.56 x 45mm NATO Free-floating military grade chrome lined barrel w/ 1:7 Twist.
M1913 Picatinny flat top upper
7075-T6 Aircraft grade aluminum upper & lower receiver with hard coat anodize finish
Rear Flip-up iron sight