AR-15 6.5 Grendel 18" Nitride Upper Assembly with Slim M-Lok Rail - Precision Performance for Tactical & Long-Range Shooting

Product Code:MAR-65-18-TRI
Availability:In Stock
  • $299.95

  • $499.95

Available Options

AR-15 Line

AR-15 6.5 Grendel 18" Nitride Upper Assembly with Slim M-Lok Rail - Precision Performance for Tactical & Long-Range Shooting

Enhance your AR-15 with the 6.5 Grendel 18" Nitride Upper Assembly, built for precision, power, and versatility. This upper is chambered in 6.5 Grendel Type 2, offering superb performance for a variety of shooting applications, from long-range target shooting to tactical and hunting purposes. With its 18" barrel, 1:8 twist, and midlength gas system, this upper assembly provides the accuracy and reliability you need.

Key Features & Benefits:

  • Caliber: 6.5 Grendel Type 2, perfect for long-range precision shooting and hunting.
  • Barrel Length: 18" non-fluted 4150 steel black nitride barrel, providing an ideal balance between velocity, accuracy, and durability.
  • Barrel Profile: HBAR barrel profile with hardened 26-32 RC and stress-relieved construction for superior strength and performance.
  • Twist Rate: 1:8 RH twist ensures excellent stabilization for 6.5 Grendel projectiles for consistent, accurate shots.
  • Barrel Threading: Threaded 5/8x24 for compatibility with a wide range of muzzle devices.
  • Gas System: Midlength gas system with a .750 low-profile gas block for smooth cycling and reliability.
  • Upper Receiver: A3 flat top upper receiver made from certified 7075-T6 aluminum forgings, black hardcoat anodized to Government specs. Includes a forward assist and dust cover for enhanced functionality.
  • Handguard: 15" M-Lok free float rail, made from aircraft-quality aluminum, and hard coat anodized for a lightweight, durable, and customizable platform for mounting accessories.
  • Muzzle Device: Includes an Triport muzzle brake for recoil control and flash suppression.

Detailed Specifications:

  • Caliber: 6.5 Grendel Type 2
  • Barrel Length: 18"
  • Barrel Material: 4150 Steel, Black Nitride Coated, Non-Fluted
  • Barrel Twist: 1:8 RH for projectile stabilization
  • Barrel Thread Pitch: 5/8x24, compatible with various muzzle devices
  • Gas System: Midlength for smooth operation
  • Gas Block: .750 low-profile steel gas block
  • Handguard: 15" M-Lok free float rail for versatile accessory mounting
  • Upper Receiver: AR-15 A3 flat top, made from 7075-T6 aluminum, black hardcoat anodized finish
  • Muzzle Device: Triport muzzle brake
  • BCG and Charging Handle: Not included, available separately
  • Weight: Approximately 4.5 lbs (varies with configuration)

Important Notes:

  • Barrel Compatibility: This barrel is compatible with .136" face depth bolts. It will not work with standard 7.62x39 bolts.
  • No BCG or Charging Handle: These components must be purchased separately for assembly.

Why Choose the 6.5 Grendel 18" Nitride Upper Assembly?

The 6.5 Grendel 18" Nitride Upper Assembly is designed for shooters seeking both high performance and durability. With an 18" barrel, 1:8 twist, and midlength gas system, this upper offers superior stability, velocity, and smooth cycling, making it ideal for precision shooting, hunting, and tactical use.

The slim 15" M-Lok free float handguard ensures you can easily customize your setup with optics, lights, grips, and more. The A2 flash hider helps minimize muzzle rise and flash, offering better control during rapid follow-up shots.

Whether you're hunting medium to large game or engaging in long-range target shooting, this upper will meet your needs for accuracy and reliability, all while maintaining a sleek and lightweight design. Images may not be an exact representation of the product.

Willie Ratcliff 05/13/2021

Nice ???? Gotta say that I'm impressed.

Danny Carrington 04/23/2021

I recieved my upper today, and was very pleased with what I recieved so far, I have not shot it yet, and will update after I shoot it. The fit, and finish was excellent, no blemishes, or scratches. Looks like a well built upper. Fit very well on my PSA lower. When I cleaned it up after receiving, I noticed it had some carbon in barrel, so it looks like it was test fired before they shipped it to me, so that's good. It was packed good for shipping, and I recieved this upper about a month after I ordered. It said it could take 4 to 6 weeks to get on the web site, I knew this before I bought. It only took 4 weeks to get. So so far, I would have to say Great Job Guys.

Danny Carrington 04/23/2021

I received my upper today, and I am very pleased so far, I have not fired it yet, but will update after I shoot it. The upper was nice looking, no blemishes, the fit on my lower was tight, and looks to be a very nice, and well built upper. It looks like it was test fired before they sent it to me, because it had some carbon in barrel when I cleaned it. So far 5 stars, Good Job guys.

Van 07/01/2019

Bought for deer hunting, shoots sub moa. Amazing deal.

Jermaine Bryant 02/02/2019

Put 300 rounds through this upper today and performance was FLAWLESS!!! What’s even more impressive is that the upper functioned very well with WOLF AMMO!! No problem at all!! Spit the rounds out with no issues at all!!!

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Tags: ar-15, 6.5, grendel, 18", nitride, upper, assembly, with, slim, m-lok, rail, precision, performance, tactical, long-range, shooting 18" 18"

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