Nice lightly used M4 Upper. 16 inch, 5.56 NATO, 1-9 Barrel with a Tromix Shark Brake, and a railed flat top gas block installed. M4 Feed Ramps. Barrel is NOT chrome lined. Less than 500 rounds. Includes Bolt Carrier Group, Charging Handle, and an inexpensive red dot sight that functions perfectly.
$425 shipped to the lower 48. Postal money order please. Buyer please post "I'll take it" followed by a PM. Thank you for looking.