Aero Precision M4E1 6.5 Grendel, 18-inch Grendel Hunter Upper, FDE Receivers, Free-Float M-LOK, Magpul STR, 5+1
This custom-configured Aero Precision M4E1 pairs an FDE M4E1 lower with a Grendel Hunter 18-inch 6.5 Grendel upper for a purpose-built AR-15 in a capable long-range cartridge. It features a free-float M-LOK handguard, a stainless-finish bolt carrier engraved "GRENDEL HUNTER," an extended forged charging handle, and a multi-port muzzle brake. Magpul STR stock and FDE furniture round out a clean, functional setup with direct-impingement operation.
Condition
Overall Condition: Good condition, showing some signs of prior use and handling.
Bore Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: Shows markings from previous handling with significant signs of use. Refer to the photos for a complete view of the exterior condition.
What's Included
- Aero Precision M4E1 6.5 Grendel semi-automatic rifle (configured with 18-inch Grendel Hunter upper)
- 1 E-Lander 5-round steel magazine for 6.5 Grendel
The rifle is built on Aero Precision M4E1 7075-T6 aluminum receivers in Flat Dark Earth, with the lower marked "AERO PRECISION LLC TACOMA WA," "MOD M4E1," and "CAL MULTI" with selector pictograms. It utilizes a direct-impingement system and feeds from detachable box magazines with a stated 5+1 capacity.
The Grendel Hunter 18-inch 6.5 Grendel upper includes a free-float M-LOK aluminum handguard featuring circular lightening holes and short 1913 rail sections at the receiver end and forward/top. The flat-top upper has a forward assist and an ejection-port cover, and it mounts a multi-port muzzle brake on the threaded barrel.
A stainless-finish bolt carrier engraved "GRENDEL HUNTER" and an aftermarket forged 7075-T6 extended charging handle support smooth operation and easy manipulation. The rifle is configured with a carbine-length receiver extension, castle nut, and end plate.
Furniture includes a Magpul STR adjustable stock in FDE and a Magpul polymer pistol grip in FDE. Sights are not installed, and the rifle uses a manual safety. Components are marked with the Grendel Hunter deer-antler logo and "MADE IN U.S.A." on the upper/handguard interface block.