This upper was build for competition by Robert Whitley (see
http://6mmar.com/Custom_Uppers.html ). An absolute laser that routinely groups a variety of bullets within 1/4 MOA. It is the most accurate AR upper I have ever used or witnessed. Specifications:
• 26" Krieger barrel 1:7.7 twist w/muzzle turned down to 0.750" to accept a front sight.
• Recessed target crown.
• Billeted heavy walled receiver w/extended feed ramps.
• Receiver face trued.
• Polished feed ramps.
• Gas block is a custom low profile clamp-on type.
• Hand guard is 2 1/4" diameter free float aluminum slotted for the fully adjustable hand stop, with a push button detachable sling swivel.
• Bolt carrier and side charging handle are included.
• Original owner - I bought new from AR-X Enterprises (Robert Whitley) in 2014.
• Approximately 1,000 rounds through barrel.
Includes picatinny rail shown.
$950 + shipping
This is posted on other sites too.
Contact me with any questions.
Thank you
Pictures: