Aero Precision M4E1 Enhanced 20" 6.5 Grendel Complete Upper Receiver - APAR640232M53

Aero Precision APAR640232M53: Upgrade the performance of your AR15 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 AR15 rifle, with proven results at 1000+ yards.

The 6.5 Grendel is designed on the AR15 platform. You will need to purchase a 6.5 Grendel specific bolt carrier group, availble here, and magazine, available here. All other components are standard to the AR15 platform. This upper assembly DOES NOT include a BCG or 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
• A2-style Flash Hider
• Product comes assembled

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

Enhanced 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

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