RIFLE: AERO PRECISION MODEL M4E1 PRO-LAUNCH EDITION, SERIAL NUMBER PRO-9837, 2- TONE, YES - INCLUDES ORIGINAL BOX AND PAPERS, SEMI - AUTOMATIC, 5.56 NATO, 16" BARREL, USED BUT IN LIKE NEW CONDITION. WCP033440 The Aero Precision M4E1 PRO rifle was built for the end user. A seamless integration of ambidextrous controls paired with robust componentry brings the M4E1 PRO Rifle into a class of its own within the M4E1 lineup. The M4E1 PRO Lower Receiver features a mirrored set of controls allowing for both convenient and intuitive manipulation of the ambidextrous safety, magazine release, and bolt catch. At the heart of this rifle is a Ballistic Advantage Cold Hammer Forged barrel wrapped in an Aero Precision MOD 4 Handguard bringing rigidity to the table in a slimline form factor. M4E1 PRO Lower Receiver - Anodized Black M4E1 Threaded Upper Receiver - Anodized Black 15" MOD 4 Handguard - Anodized Kodiak 16" Cold Hammer Forged BA Gov 5.56 Barrel - Chrome Lined Mid Length Gas System, Pined Low Profile Gas Block Chrome Lined Phosphate M16 Cut Bolt Carrier Group w/ C158 Tool Steel Bolt Assembly - Individually HPT & MPI Tested AR15 A2 Birdcage Flash Hider BREACH(R) Ambidextrous Charging Handle PRO Ambidextrous Safety EZ Install Takedown / Pivot Pins ALG QMS Single Stage Trigger Aero Precision Enhanced Buffer Tube H Buffer B5 Grip B5 Stock