Aero Precision M4E1-T PRO CHF M4 5.56mm 16 inch Complete Upper Receiver Hanson Mid Length 1-7 Twist A2 Birdcage Anodized OD Green

This complete upper includes our Minimal Optical Deflection (MOD) 4 handguard. The MOD 4 handguard seamlessly blends robust construction with an ergonomic form factor, ensuring no compromises between the two. Machined from 6061-T6 aluminum, the handguard is engineered with a focus on stiffness to drastically reduce deflection under load. It attaches to the upper receiver via a steel barrel nut, which also serves to significantly reduce point-of-impact shift when using an infrared laser aiming device under load.A 7 sided M-LOK? interface allows the user to customize their handguard to their exact specifications and needs. Lastly, each of the 4 QD sockets on the MOD 4 utilize a steel liner to ensure a higher shear load and longer service life with the continued use of QD swivels.INCLUDES:M4E1 Threaded Upper ReceiverMOD 4 15" Handguard16" 5.56 Hanson Mid-Length CHF BarrelMid Length Gas System, Pined Low Profile Gas BlockAR15 A2 Birdcage Flash HiderProduct comes assembledOptional:Need a BCG and Charging handle? Use the dropdown to purchase this upper receiver with an upgraded BCG and BREACH ambidextrous charging handle!Breach Charging Handle Features (Optional): Ambidextrous Controls: Ergonomically designed 7075 Aluminum levers allow the user to easily charge their firearm with either hand, while remaining low profile and comfortable when slung.Robust Construction: Reduced chamfer angles on the 7075 Aluminum reinforced bar design provide a strong foundation for the BREACH? that is resistant to rotational flex or breakage.Patent-pending Lever Mechanism: Transfers force-of-use away from the roll pins and into the top/head portion of the reinforced bar protecting the charging handle in the most demanding circumstances.Gas Deflection Shelf: Aligns with the upper receiver to redirect gas flow away from the users face when shooting suppressed.Functional Design: It is not all just good looks. Stylistic cuts on the charging handle also help to clear stuck on carbon and debris from the upper receiver, while the spacer design seals and protects the lever mechanism from debris.Upgraded Chrome Lined Phosphate M16 Cut Bolt Carrier Group (Optional): M16-cut carrierMachined from 8620 steelCarrier has forward assist serrationsMil-Spec phosphate coatingProperly staked gas keyChrome lined gas key and bolt channel5.56 Bolt is machined from Carpenter 158 tool steelShot peenedHPT tested/MPI markedBlack o-ring insert on extractorM4E1 THREADED UPPER RECEIVER FEATURES: New enhanced forging that gives the upper receiver a billet lookNew picatinny profile that blends seamlessly with our Enhanced Series HandguardsM4 Feedramps.250 takedown pin holesLaser engraved T-marksIncludes port door and forward assist installedMOD 4 HANDGUARD FEATURES:Full top picatinny rail for optional attachmentsQuick disconnect sling socket at the 3, 6 and 9 o'clock positionsCompatible with low profile gas blocks1.2" Inside diameter1.5" Outside diameterCompatible with mil-spec AR15 upper receivers and barrels16" Cold Hammer Forged BA Hanson 5.56 Barrel:5.56x45mm NATO Cold Hammer ForgedChrome Lined Finish.750" gas block journalMid-Length Gas System1/7 Twist RateM4 Feed Ramp ExtensionHP and MPI TestedStandard A2 Flash Hider