20" Aero Precision & Ballistic Advantage M4E1 Enhanced Ultra-Match 6.5 Grendel Upper Receiver

$ 875.00

Aero Precision

Upgrade the performance of your AR-15 build with this 6.5 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 AR-15 rifle, with proven results at 1000+ yards.

The 6.5 Grendel is designed on the AR-15 platform. This complete upper receiver features a Dead Bolt™ QPQ BlackNitride 6.5 Grendel specific bolt carrier group by Ground Zero Precision.  You will need to purchase a 6.5 Grendel specific magazine separately (not currently offered - coming soon). All other components are standard to the AR-15 platform. This upper assembly includes both BCG and Charging Handle.

Includes:

  • M4E1 Enhanced Assembled Upper Receiver
  • Enhanced Handguard of choice
  • 6.5 Grendel 20" Stainless Steel, Rifle Length Barrel
  • .750 Low Profile Gas Block and Rifle Length Gas Tube
  • VG6 Gamma 6.5 High Performance Brake (Buyer's Choice of Finish)
  • Aero Precision Ambi Charging Handle
  • Dead Bolt™ QPQ BlackNitride 6.5 Grendel specific bolt carrier group
  • Product comes assembled & tested

M4E1 Enhanced Upper Features:

  • Forged from 7075 T6 aluminum
  • Precision machined to M4E1 specs
  • M4 feedramps
  • Matte black hard coat anodized Mil 8625 Type 3 Class 2
  • Laser engraved T-marks (Anodized only)
  • Comes assembled, with port door and forward assist installed
  • Accepts standard AR15/M16 components
  • Handguard mounting platform is forged into the receiver
  • Works with Aero Precision handguards but also fits most BAR-system handguards
  • Barrel nut and wrench are included

Aero Precision Enhanced 15" M-Lok Handguard Features:

  • 1pc free float design
  • Rail is Machined from 6061-T6 Aluminum
  • Built in Anti-Rotation tabs
  • Scalloped rails
  • Continuous top rail
  • 1.78" inside diameter fits most muzzle devices and 1.5" suppressors
  • Compatible with low profile gas blocks
  • Gen 2 Feature - Quick disconnect sling socket at the 3, 6 and 9 o’clock positions
  • Gen 2 Feature - Additional milling along flats to aid with gripping and add visual appeal
  • Gen 2 Feature - New profile for the continuous picatinny top rail

Ballistic Advantage 6.5 Grendel 20" Stainless Steel, Rifle Length Barrel Features:

  • 6.5 Grendel 20" Rifle Length Barrel
  • 416R Stainless Steel finish
  • 1/8 twist
  • 5/8x24 Threaded Pitch
  • DMR Profile
  • .750 gas block journal
  • Rifle length gas system
  • M4 Feed Ramp Extension
  • HP and MPI tested

VG6 Precision 65 Gamma High Performance Brake Features:

The VG6 GAMMA 65 is a high performance muzzle brake for eliminating recoil. It was designed using state of the art engineering techniques, utilizing CFD (Computational Fluid Dynamics) and CAE (Computer Aided Engineering). This product is 100% CNC machined for optimal performance.

The VG6 GAMMA 65 is a muzzle brake and compensator hybrid. It virtually eliminates recoil and minimizes muzzle movement. The unique combination of both braking and compensating features inspire shooter confidence and allows the shooter to make very fast follow up shots. Its unique chamber geometries give it a very soft feel in the shoulder and the gas ports dimensions have been strenuously tested to give the utmost control to the muzzle.

  • Material: 17-4ph® Heat Treated Stainless Steel
  • Finish: BLACKNITRIDE™ - Satin Finish(Half Gloss) OR Brushed Stainless Finish
  • Surface Hardness: 68RC
  • Caliber: 6.5 Creedmoor, 6.5 Grendel, 6.8 Remington SPC
  • Thread: 5/8-24 RH

Dead Bolt™ QPQ BlackNitride 6.5 Grendel Specific Bolt Carrier Group Features:

  • Mil-Spec 8620 Tool Steel Carrier - M16 Profile with shrouded firing pin.
  • Carrier Finish Inside and Outside: Salt Bath QPQ Nitride
  • Carrier Bore: Hard Chrome to 1.2.2.2 Mil-Std 171
  • Mil-Spec Tool Steel Carrier Gas Key
  • Gas Key Finish Inside and Outside: Salt Bath QPQ Nitride
  • Gas Key Bore: Hard Chrome to 1.2.2.2 Mil-Std 171
  • Gas Key Attachment: Grade 8 Hardware, Properly Staked to Mil-Spec (3.3.4.1 MIL-R-63997B(AR))
  • Bolt Material: Carpenter No. 158® Steel - Precision CNC Machined
  • Bolt Finish Inside and Outside: Salt Bath QPQ Nitride
  • Bolt Firing Pin Bore Finish: Hard Chrome to 1.2.2.2 Mil-Std 171
  • Bolt Hardening Technique: Shot Peened to most current military specification
  • Bolt Testing and Inspection: High Pressure Tested (HPT) and Magnetic Particle Inspected (MPI) 
  • Extractor Material: 4340 Aircraft Grade Steel
  • Extractor Hardening Technique: Shot Peened to most current military specification, Heat Treated to RC 48-53
  • Extractor Finish: Nickel Boron
  • Firing Pin Material: AISI 8740 Steel
  • Firing Pin Finish: Hard Chrome to 1.2.2.2 Mil-Std 171
  • Cam Pin Material: 4340 Aircraft Grade Steel
  • Cam Pin Finish: Hard Chrome to 1.2.2.2 Mil-Std 171
  • Firing Pin Retaining Pin Material: Hardened Spring Steel
  • Firing Pin Retaining Pin Finish: Phosphate to 5.3.1.2 Mil-Std 171