Aero Precision M4E1 8" .300 BLK Threaded Complete Upper w/ ATLAS R-ONE 7" M-LOK Handguard - Black - APAR700701M1 Review

About Aero Precision M4E1 8" .300 BLK Threaded Complete Upper w/ ATLAS R-ONE 7" M-LOK Handguard - Black - APAR700701M1

This complete upper includes our new ATLAS R-ONE Handguard! The R-ONE handguards are designed with size and weight in mind, while still providing plenty of real-estate to accommodate any attachment needs the end user may have. Our proprietary ATLAS attachment system is a durable and dependable mounting platform, maintaining a slim profile while still providing the strength and stability customers have grown to love from Aero Precision handguards. Includes: M4E1 Threaded Assembled Upper Receiver ATLAS R-ONE Handguard of choice 8″ .300 Blackout CMV Barrel Low Profile Gas Block and Pistol Length Gas Tube Product comes assembled This complete upper does not include BCG or Charging Handle. The muzzle brake that comes with this complete upper receiver is NOT pinned nor welded to this barrel. M4E1 Threaded Upper Receiver Features: New enhanced forging that gives the upper receiver a “billet look” New picatinny profile that blends seamlessly with our Enhanced Series Handguards M4 Feedramps .250 takedown pin holes Laser engraved T-marks Includes port door and forward assist installed ATLAS R-ONE Handguard Features: Full top picatinny rail for optional attachments Quick disconnect sling socket at the 3, 6 and 9 o’clock positions Compatible with low profile gas blocks 1.3” Inside diameter 1.5” Outside diameter Compatible with mil-spec AR15 upper receivers and barrels 8″ .300 Blackout Barrel Features: Length: 8″ Twist: 1 in 7 Muzzle: 5/8×24 Threaded Material: 4150 Crome Moly Vanadium Finish: QPQ corrosion resistant finish both inside and out Gas Block: .750 Gas Port: .109 Gas System Length: Pistol Weight: 18oz M4 Barrel Extension HP and MPI Tested

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