This complete upper features a 10.5-inch Bear Creek 4150 CrMoV barrel with a 10-inch M-Lok freefloat handguard, chambered in 6.5 Grendel. The upper includes an anodized 7075-T6 aluminum receiver with M4 feed ramps, micro low-profile gas block, pistol-length gas system, GI birdcage flash hider, mil-spec charging handle, and 6.5 Grendel II QPQ nitride bolt carrier group with 9310 alloy steel bolt head and 8620 alloy steel body.
6.5 Grendel offers extended effective range and superior ballistic performance compared to standard 5.56 NATO, making it well suited for precision applications where barrel length constraints apply.
The 6.5 Grendel II bolt carrier group features QPQ nitride finish over 9310 alloy steel bolt head and 8620 alloy steel body. The nitride treatment provides corrosion resistance and surface hardness while reducing friction. This BCG is designed specifically for 6.5 Grendel chambering.
The 10-inch M-Lok freefloat handguard features 6061-T6 aluminum construction with Cerakote finish and M-Lok slots for modular accessory attachment. The freefloat design isolates the barrel from external pressure, supporting accuracy in compact upper configurations.
This complete upper is compatible with standard AR-15 lower receivers. All components use mil-spec dimensions and threading, including the 5/8x24 TPI muzzle threads matching the included GI birdcage flash hider.
Follow safe handling and manufacturer instructions. Ensure compliance with all applicable federal, state, and local laws.
Caliber: 6.5 Grendel
Barrel Name: Bear Creek 10.5-inch 6.5 Grendel AR-15 Barrel
Barrel Length: 10.5 inches
Barrel Material: 4150 CrMoV Steel
Barrel Finish: Phosphate
Barrel Profile: HBar
Barrel Twist Rate: 1:8
Barrel Thread Pitch: 5/8x24
Barrel Gas System: Pistol
Handguard Name: 10" MLOK Freefloat Handguard
Handguard Material: 6061-T6 Aluminum
Handguard Color: Black
Handguard Finish: Cerakote
Handguard Style: Freefloat with M-Lok
Upper Receiver Name: AR-15 Upper Receiver
Upper Receiver Material: 7075 T6 Aluminum
Upper Receiver Finish: Anodized
Gas Block Name: Micro Low-Profile Gas Block
Gas Block Size: 0.750 inches
Muzzle Device: AR-15/AR-10 .308 5/8x24 TPI GI Birdcage Flash Hider
Muzzle Thread Pitch: 5/8x24
Charging Handle: AR-15 M4 Charging Handle
Bolt Carrier Name: AR-15 6.5 Grendel II QPQ Nitride Complete Bolt Carrier Group
Bolt Carrier Material: 9310 Alloy Steel (Bolt Head), 8620 Alloy Steel (Body)
Bolt Carrier Finish: Nitride
Gas Tube: Stainless Pistol-Length Gas Tube
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