Aero Precision M4E1-T Complete Upper 20in 6.5 Grendel Stainless Steel Barrel SM15 Anodized Black

Aero Precision M4E1-T Complete Upper 20in 6.5 Grendel Stainless Steel Barrel SM15 Anodized Black. 5 Grendel Complete Upper Receiver. Designed to be a low recoil/high accuracy cartridge the 6.5 Grendel is ideal for those looking to stretch the legs of their AR15 rifle with proven results at 1000+ yards. Specifications for Aero Precision M4E1 Threaded 20in 6.5 Grendel Complete Upper Receiver with Flash Hider w/ATLAS S-ONE Handguard: Manufacturer: Aero Precision Caliber: 6.5mm Grendel Overall Length: 30 in Barrel Length: 20 in Barrel Profile: M4 Gas System Length: Rifle Length Barrel Twist Rate: 1-8 Firearms Threads Per Inch: 5/8x24 Handguard Type: Free-Float Muzzle Device: A2 Flash Hider Finish: Anodized Color: Black Gun Model: AR-15 Fabric/Material: 416R Stainless Steel Attachment Type: Picatinny Gas Block Journal Size-Diameter: .750 in Gun Rail: Picatinny Gun Make: AR Platform Weight: 70 oz Bolt Carrier Group Included: No Charging Handle Included: No Magazine Included: No Condition: New Included Accessories: None Mount Type: Picatinny Country of Origin: USA Features of Aero Precision M4E1 Threaded 20in 6.5 Grendel Complete Upper Receiver with Flash Hider w/ATLAS S-ONE Handguard 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 ATLAS 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 Compatible with mil-spec AR15 upper receivers and barrels Package Contents: Aero Precision M4E1 Threaded 20in 6.5 Grendel Complete Upper Receiver with Flash Hider w/ATLAS S-ONE Handguard M4E1 Threaded Assembled Upper Receiver ATLAS S-ONE Handguard of choice 6.5 Grendel 20" Stainless Steel Rifle Length Barrel .750 Low Profile Gas Block and Rifle Length Gas Tube A2-style Flash Hider Product comes assembled What firearm models does the manufacturer say Aero Precision M4E1 Threaded 20in 6.5 Grendel Complete Upper Receiver with Flash Hider w/ATLAS S-ONE Handguard is compatible with? The manufacturer says that Aero Precision M4E1 Threaded 20in 6.5 Grendel Complete Upper Receiver with Flash Hider w/ATLAS S-ONE Handguard is compatible with AR-15Aero Precision APAR700325M53: M4E1-T Complete Upper 20in 6.5 Grendel Stainless Steel Barrel SM15 Anodized Black