Radical Firearms 16″ 6.5 Grendel AR 15 Complete Upper Receiver with M-LOK Handguard

SKU: RF00421

Out of Stock

Join the waitlist to be emailed when this product becomes available

Orders will Ship within 1 Business Day
Backed by the Radical Firearms Warranty!
TOP ADD-ON'S

AT3™ 3xP Scope – 3x Prism Scope with Illuminated BDC Reticle

$239.99

AT3™ Red Tail™ Rifle Scope with Mount – 1-6x Magnification

$299.99

Complete Budget-Friendly Upper Receiver for 6.5 Grendel AR Builds

The Radical Firearms 16″ 6.5 Grendel Complete Upper Receiver is a great way to start your 6.5 Grendel AR build. It is an outstanding choice for long-range, high-value builds ready to be mounted to any Mil-Spec AR-15 lower receiver. The upper comes complete and assembled with a “Pepper Pot” muzzle brake, Charging Handle, Nitride Bolt Carrier Group, and a Radical Firearms 15″ RPR M-LOK Free Float handguard.

It is the perfect choice for the novice or advanced shooter wanting to finish out that build and hit the range.

Forged From 7075 T6 Aerospace-Grade Aluminum

The upper receiver is forged from 7075 T6 aerospace-grade aluminum and features a hardened Type III Anodized finish for dependable, quality shooting. The barrel features a Medium Contour Profile barrel made for prolonged periods of fire and machined from 416R Stainless Steel.

The low profile medium length gas system is fine-tuned for proper cycling and the free float rail system will keep your hands cool while increasing accuracy.

Radical Firearms offers a Lifetime Warranty on all their products for as long as you own the product.

Specifications:

  • Barrel Length: 16″
  • Gas System: Medium Length
  • Barrel Profile: Medium Contour Profile
  • Barrel Material: 416R
  • Barrel Finish: Stainless Steel
  • Muzzle Thread: 5/8×24
  • Chamber: 6.5 Grendel
  • Twist Rate: 1:8
  • Barrel Extension: M4 Feed Ramp
  • Gas Block Type: .750 Low-profile Gas Block
  • Muzzle Device: “Pepper Pot” Brake
  • Upper Receiver Material: Forged 7075 T6
  • Upper Receiver Style: M4 MIL-STD
  • Upper Receiver Finish: Type III Anodizing
  • Forward Assist: Yes
  • Dust Cover: Yes
  • Handguard Type: Free Float
  • Handguard Style: M-Lok Thin Rail
  • Handguard Length: 15″
  • Charging Handle: MIL-STD
  • Bolt Carrier Group Included: Yes
  • BCG Finish: Nitride

The AT3 Tactical store has a 90 day no-hassle return policy for products in good condition. You can view the full details of our return policy here.

If you encounter an issue or defect with a product after 90 days of your purchase, you can refer to the manufacturer for a warranty claim. Their policies are below.

Radical Firearms Warranty

How do I return an item?

With the exception of the following listed items, all purchases made from Radical Firearms carry a five (5) calendar day return period that starts the day of receipt of the order as reported by the delivery service. Within that time, a customer may return items ordered for a full refund (less shipping costs if the entire order is returned) as long as they are unopened and unused. If the packaging has been opened, the items may still be returned however will be subject to a 20% re-stocking fee.

Order(s) cancellations for all items prior to shipment will be assessed a 10% cancellation/restocking fee.

The following items may not be returned and all sales are considered final.

  • Firearms (which include lower receivers)
  • Upper Receivers
  • Special Orders

Prior to returning an item, please send an email to info@radicalfirearms.com referencing the order number and item(s) being returned. Any shipment that arrives without prior notification will be marked “Return to Sender” and returned at the sender’s expense.

The customer is responsible for arranging shipping of any returned items. Radical Firearms highly recommends the use of an insured, trackable method of returning products such as UPS or FedEx. Responsibility for products damaged in transit while returning items is the responsibility of the customer, not Radical Firearms . Once the returned item is received, the customer will be notified of the progress of the return.

Returned orders that qualified for free shipping will have the actual cost of shipping deducted from the returned amount.

Contact Details:

  • Email: info@radicalfirearms.com

Disclaimer: Manufacturer’s warranty is subject to change without prior notice.

Customers who viewed this item also viewed these products

Radical Firearms 16" .300 Blackout Complete Upper Receiver with M-LOK Handguard - AT3 Tactical

Radical Firearms 16" .300 Blackout Complete AR 15 Upper Receiver...

(no reviews yet)
$449.99
Complete Budget-Friendly Upper Receiver for .300 Blackout AR Builds The Radical Firearms 16″ .300
Radical Firearms 16" 5.56 NATO Complete Upper Receiver with M-LOK Handguard - AT3 Tactical

Radical Firearms 16" 5.56 NATO Complete AR 15 Upper Receiver...

$449.99
Complete Budget-Friendly Upper Receiver for 5.56 NATO AR Builds The Radical Firearms 16″ 5.56
Radical Firearms 16" 7.62x39 Complete Upper Receiver with M-LOK Handguard - AT3 Tactical

Radical Firearms 16" 7.62x39 Complete Upper Receiver with M-LOK Handguard

(no reviews yet)
$449.99
Complete Budget-Friendly Upper Receiver for 7.62mm AR Builds The Radical Firearms 16″ 7.62×39 Complete

Faxon Firearms 6.5 Grendel/6mm ARC Bolt Carrier Group – 9310...

$151.80
Improved Bolt-Carrier Group for Your Next 6.5 Grendel Rifle The Faxon Firearms 6.5 Grendel
Duramag Stainless Steel 10 Round Magazine - 6.5 Grendel

Duramag Stainless Steel 10 Round AR 15 Magazine - 6.5...

$13.99
Your New Favorite Mag For 6.5 Grendel and 6mm ARC Firearms The Duramag Stainless
ASC 5 Round 6.5 Grendel Magazine for AR17 - AT3 Tactical

ASC 5 Round 6.5 Grendel/6mm ARC Magazine for AR15

(no reviews yet)
$19.95
Restricted State and Hunter-Friendly 6.5 Grendel/6mm ARC Magazine ASC manufactures an American classic that
CMMG 6.5 Grendel/6mm ARC Bolt Carrier Group for AR-15 - AT3 Tactical

CMMG 6.5 Grendel/6mm ARC Bolt Carrier Group for AR-15

(no reviews yet)
$159.99
CMMG 6.5 Grendel/6mm ARC Bolt Carrier Group This bolt carrier group from CMMG runs, whether
Odin Works Atlas Compensator for 6.5 Grendel - 5/8x24 - AT3 Tactical

Odin Works Atlas Compensator for 6.5 Grendel/6mm ARC - 5/8x24

$99.00
The First Modular Muzzle Device Designed For 6.5 Grendel Platforms The Odin Works Atlas
Ballistic Advantage 18" 6MM ARC Premium Black AR15 Barrel - Rifle - SPR Profile

Ballistic Advantage 6mm ARC 18 Inch AR 15 Barrel -...

$242.25
18 Inch 6mm ARC Barrel with Stainless Construction and Nitride Finish For repeatable, long-range
HM Defense BUP 16 Inch Complete 5.56 AR-15 Upper Receiver with 15 Inch M-LOK Handguard - AT3 Tactical

HM Defense MONOBLOC 16 Inch Complete 5.56 AR-15 Upper Receiver...

(no reviews yet)
$875.00
Cost-Effective Complete Upper Receiver for A High-Performance AR-15 Build This HM Defense BUP Complete
VG6 Gamma 65 Muzzle Brake – 6.5mm 5/8×24

VG6 Gamma 65 Muzzle Brake – 6.5mm 5/8×24

(no reviews yet)
$71.99
A Muzzle Brake & Compensator Hybrid For 6.5mm Calibers The VG6 Gamma 65 is

Faxon Firearms Match Series 16 Inch Gunner 6.5 Grendel Barrel...

(no reviews yet)
$225.40
16 Inch High-Quality Barrel For 6.5 Grendel Rifles This Faxon Firearms Match Series 16

HM Defense MONOBLOC 16 Inch Complete 5.56 AR-15 Upper Receiver...

(no reviews yet)
$775.00
Cost-Effective Complete Upper Receiver for A High-Performance AR-15 Build This HM Defense BUP Complete
VG6 Epsilon 65 Muzzle Brake - 6.5mm 5/8x24

VG6 Epsilon 65 AR 15 Muzzle Brake - 6.5mm 5/8x24

High-Performance Muzzle Brake For Eliminating Recoil The VG6 Epsilon 65 Muzzle Brake is a

Bear Creek Arsenal 6.5 Grendel Type II AR-15 Bolt Carrier...

$68.99
Bear Creek Arsenal 6.5 Grendel Type II AR-15 Bolt Carrier Group – Nitride The

Questions & Answers

Don't see the answer
you're looking for?

Loading questions...