Aero Precision M4E1-E AR-15 5.56x45mm NATO 13.9in Atlas S-One M-LOK Upper Receiver Government CMV Mid Length 1-7 Twist 1/2x28 A2 Flash Hider 12.7in HG

Aero Precision M4E1-E AR-15 5.56x45mm NATO 13.9in Atlas S-One M-LOK Upper Receiver Government CMV Mid Length 1-7 Twist 1/2x28 A2 Flash Hider 12.7in HG. The S-ONE line of handguards are designed with size and weight in mind providing the perfect addition to your lightweight build. Our proprietary Aero Taper Lock 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. Specifications for Aero Precision M4E1-E S-One AR-15 5.56x45mm NATO 13.9in Atlas M-LOK Upper Receiver: Manufacturer: Aero Precision Caliber: 5.56x45mm NATO Overall Length: 23 in Barrel Length: 13.9 in Barrel Profile: Government Gas System Length: Mid Length Barrel Twist Rate: 1-7 Firearms Threads Per Inch: 1/2x28 Handguard Type: A2 Muzzle Device: A2 Flash Hider Gun Model: AR-15 Gas Block Journal Size-Diameter: .750 in Handguard Length: 12.7 in Handguard Style: M-LOK ATLAS S-ONE Gun Rail: M-LOK Gun Type: Rifle Gun Make: AR Platform Barrel Material: 4150 CMV Steel Bolt Carrier Group Included: No Charging Handle Included: No Magazine Included: No Country of Origin: USA Features of Aero Precision M4E1-E S-One AR-15 5.56x45mm NATO 13.9in Atlas M-LOK Upper Receiver: 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 S-ONE Handguard Features: Front and rear picatinny rail Eliminated center of top rail for weight reduction Indexing grooves in 12:00 position for positive grip control 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 13.9" 5.56 M4 CMV Barrel Mid-Length Features: 5.56 Nato 13.9" Barrel 1/7 twist 4150 CrMoV QPQ gas port drilled .750 gas block journal Mid-Length Gas System M4 Feed Ramp Extension HP and MPI tested Standard A2 flash hider Package Contents: Aero Precision M4E1-E S-One AR-15 5.56x45mm NATO 13.9in Atlas M-LOK Upper Receiver M4E1 Threaded Assembled Upper Receiver 12.7" S-ONE Handguard 13.9" 5.56 Mid-Length CMV Barrel Low Profile Gas Block and Mid-Length Gas Tube Product comes assembled What firearm models does the manufacturer say Aero Precision M4E1-E S-One AR-15 5.56x45mm NATO 13.9in Atlas M-LOK Upper Receiver is compatible with? The manufacturer says that Aero Precision M4E1-E S-One AR-15 5.56x45mm NATO 13.9in Atlas M-LOK Upper Receiver is compatible with AR-15Aero Precision APAR700104M99: Complete Upper Receiver M4E1-T SM12.7 5.56x45mm NATO 13.9in Government Mid Length 1 in 7 1/2 x 28 12.7in A2 Flash Hider Anodized Black