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DIY Parts & Components
6.5 Grendel | DIY Parts & Components
This category includes base components needed to begin building your own 6.5 Grendel upper receiver or lower receiver. All parts available from Alexander Arms® are visible here in the Online Store. Some additional parts that are required to complete assembly are not sold by Alexander Arms®.
Features:
- Extremely lightweight profile, button-rifled, chrome moly 6.5 Grendel barrel
- 1:7.5 twist rate
- Melonite bore and exterior finish
- 5/8-24 TPI RH muzzle threading
- 60-degree muzzle crown
- Barrel extension installed
- Exactly the same specifications as the Alexander Arms® 6.5 Grendel Incursion rifle
- Fully-inspected and fully-prepared for assembly into an AR-15 platform rifle
- Barrel weight is 1.52 pounds
- Gas block diameter is 0.750 inches
- Extremely lightweight profile, button-rifled, chrome moly 6.5 Grendel barrel
- 1:7.5 twist rate
- Melonite bore and exterior finish
- 5/8-24 TPI RH muzzle threading
- 60-degree muzzle crown
- Barrel extension installed
- Exactly the same specifications as the Alexander Arms® 6.5 Grendel Incursion rifle
- Fully-inspected and fully-prepared for assembly into an AR-15 platform rifle
- Barrel weight is 1.52 pounds
- Gas block diameter is 0.750 inches
Specifications are not optional and custom barrels are not made
Please review the warranty disclaimer in the Additional Info section before ordering.
Please review the warranty disclaimer in the Additional Info section before ordering.
This 11.5" 6.5 Grendel barrel is the perfect starting point for your very own 6.5 Grendel SBR or Pistol build!
The barrel specs are:
- Button-rifled, 416 R stainless steel 6.5 Grendel barrel
- 1:7.5 twist rate
- 5/8-24 TPI RH muzzle threading
- 60-degree muzzle crown
- Barrel extension installed
- Gas port is positioned at carbine length
- Exactly the same specifications as the Alexander Arms® 6.5 Grendel 11.5-inch upper receiver assembly
- Fully-inspected and fully-prepared for assembly into an AR-15 platform rifle
- Barrel weight is 1.36 pounds
- Gas block diameter is 0.875 inches
Specifications are not optional and custom barrels are not made.
Please review the warranty disclaimer in the Additional Info section before ordering.
The barrel specs are:
- Button-rifled, 416 R stainless steel 6.5 Grendel barrel
- 1:7.5 twist rate
- 5/8-24 TPI RH muzzle threading
- 60-degree muzzle crown
- Barrel extension installed
- Gas port is positioned at carbine length
- Exactly the same specifications as the Alexander Arms® 6.5 Grendel 11.5-inch upper receiver assembly
- Fully-inspected and fully-prepared for assembly into an AR-15 platform rifle
- Barrel weight is 1.36 pounds
- Gas block diameter is 0.875 inches
Specifications are not optional and custom barrels are not made.
Please review the warranty disclaimer in the Additional Info section before ordering.
Lightweight profile, button-rifled, stainless steel 6.5 Grendel barrel
Features:
- 1:7.5 twist rate
- Glass bead blasted
- Fluting for weight reduction
- 5/8-24 TPI RH muzzle threading
- 60-degree muzzle crown
- Barrel extension installed
- Gas port is positioned at mid-length
- Exactly the same specifications as the Alexander Arms® 6.5 Grendel 18-inch Lite upper receiver assembly
- Fully-inspected and fully-prepared for assembly into an AR-15 platform rifle
- Barrel weight is 2.10 pounds
- Gas block diameter is 0.875 inches
Features:
- 1:7.5 twist rate
- Glass bead blasted
- Fluting for weight reduction
- 5/8-24 TPI RH muzzle threading
- 60-degree muzzle crown
- Barrel extension installed
- Gas port is positioned at mid-length
- Exactly the same specifications as the Alexander Arms® 6.5 Grendel 18-inch Lite upper receiver assembly
- Fully-inspected and fully-prepared for assembly into an AR-15 platform rifle
- Barrel weight is 2.10 pounds
- Gas block diameter is 0.875 inches
Specifications are not optional and custom barrels are not made
Please review the warranty disclaimer in the Additional Info section before ordering
***Please note that the image shown is a 16" Lite Barrel! An updated photo will be uploaded shortly!***
Please review the warranty disclaimer in the Additional Info section before ordering
***Please note that the image shown is a 16" Lite Barrel! An updated photo will be uploaded shortly!***
Introducing the Alexander Arms 6.5 Grendel Upper Kit! This kit has everything you need to get started on your very own 6.5 upper build!
The kit includes:
- Mil-Spec flat top upper receiver (port door and forward assist installed)
- Our very own high quality 16" chrome moly, extreme lightweight barrel with a 1:7.5 twist and a melonite finish
- Threaded 5/8-24 TPI RH
- Complete bolt carrier and 6.5 Grendel Bolt
- Your choice of either a Low Profile or Picatinny Railed Gas Block
- Mid-length Gas tube
- Mil-Spec charging handle
- One 10 Round Magazine
The kit does not include a barrel nut or handguard.
The kit includes:
- Mil-Spec flat top upper receiver (port door and forward assist installed)
- Our very own high quality 16" chrome moly, extreme lightweight barrel with a 1:7.5 twist and a melonite finish
- Threaded 5/8-24 TPI RH
- Complete bolt carrier and 6.5 Grendel Bolt
- Your choice of either a Low Profile or Picatinny Railed Gas Block
- Mid-length Gas tube
- Mil-Spec charging handle
- One 10 Round Magazine
The kit does not include a barrel nut or handguard.
Introducing the Alexander Arms 6.5 Grendel SBR/Pistol Upper Kit! This kit has everything you need to get started on your very own 6.5 upper build!
The kit includes:
- Mil-Spec flat top upper receiver (port door and forward assist installed)
- Our very own high quality 11.5" 416R SS barrel with a 1:7.5 twist and a bead blasted stainless finish
- Threaded 5/8-24 TPI RH
- Complete bolt carrier and 6.5 Grendel Bolt
- Carbine length Gas tube
- Mil-Spec charging handle
- One 10 Round Magazine
The kit does not include a barrel nut or handguard.
The kit includes:
- Mil-Spec flat top upper receiver (port door and forward assist installed)
- Our very own high quality 11.5" 416R SS barrel with a 1:7.5 twist and a bead blasted stainless finish
- Threaded 5/8-24 TPI RH
- Complete bolt carrier and 6.5 Grendel Bolt
- Carbine length Gas tube
- Mil-Spec charging handle
- One 10 Round Magazine
The kit does not include a barrel nut or handguard.
Introducing the Alexander Arms 6.5 Grendel Upper Kit! This kit has everything you need to get started on your very own 6.5 upper build!
The kit includes:
- Mil-Spec flat top upper receiver (port door and forward assist installed)
- Our very own high quality 18" 416R stainless steel, fluted barrel
- 1:7.5 twist
- Threaded 5/8-24 RH
- Complete bolt carrier and 6.5 Grendel Bolt
- Mid-length Gas tube
- Mil-Spec charging handle
The kit does not include a barrel nut or handguard.
The kit includes:
- Mil-Spec flat top upper receiver (port door and forward assist installed)
- Our very own high quality 18" 416R stainless steel, fluted barrel
- 1:7.5 twist
- Threaded 5/8-24 RH
- Complete bolt carrier and 6.5 Grendel Bolt
- Mid-length Gas tube
- Mil-Spec charging handle
The kit does not include a barrel nut or handguard.
Alexander Arms® 6.5 Grendel caliber-designated stripped upper receiver, the same that is used in our high-quality factory-assembled products
Features:
- Made from tough 7075 aluminum alloy to military AR-15 specifications
- Includes the engraving "ALEX-A 6.5 GREN" on the receiver
- Product weight is 0.44 pounds
No other parts are included or supplied with this product.
Features:
- Made from tough 7075 aluminum alloy to military AR-15 specifications
- Includes the engraving "ALEX-A 6.5 GREN" on the receiver
- Product weight is 0.44 pounds
No other parts are included or supplied with this product.
Alexander Arms® 6.5 Grendel caliber-designated stripped lower receiver, the same that is used in our high-quality factory-assembled products. Made from tough 7075 aluminum alloy to military AR-15 specifications.
Features:
- Small trigger pin with (0.154") dimensions
- Alexander Arms® 6.5 Grendel serial number
- Alexander Arms® company logo, company name, and company location engraved on the receiver
- Product weight is 0.52 pounds
No other parts are included or supplied with this product.
Features:
- Small trigger pin with (0.154") dimensions
- Alexander Arms® 6.5 Grendel serial number
- Alexander Arms® company logo, company name, and company location engraved on the receiver
- Product weight is 0.52 pounds
No other parts are included or supplied with this product.
Alexander Arms® high-quality gas block manufactured to our specifications
Features:
- Durable manganese phosphate coating
- Set screw attachment
- Weight of gas block is 0.13 pounds
- Mates perfectly with the Lite series barrels and gas tubes currently being sold by Alexander Arms®
- Two set screws are required and included
Features:
- Durable manganese phosphate coating
- Set screw attachment
- Weight of gas block is 0.13 pounds
- Mates perfectly with the Lite series barrels and gas tubes currently being sold by Alexander Arms®
- Two set screws are required and included
Alexander Arms® high-quality gas block manufactured to our specifications
Features:
- Durable manganese phosphate coating
- Set screw attachment
- Weight of gas block is 0.23 pounds
- Mates perfectly with the Lite series barrels and gas tubes currently being sold by Alexander Arms®
- Two set screws are required and included
Features:
- Durable manganese phosphate coating
- Set screw attachment
- Weight of gas block is 0.23 pounds
- Mates perfectly with the Lite series barrels and gas tubes currently being sold by Alexander Arms®
- Two set screws are required and included
Alexander Arms® high-quality gas tubes manufactured to our specifications
- Available in carbine-, mid-, and rifle-length sizes
- Mates perfectly with the gas blocks and barrels currently being sold by Alexander Arms®
- Does not include a gas tube roll pin or any other supplies.
- Available in carbine-, mid-, and rifle-length sizes
- Mates perfectly with the gas blocks and barrels currently being sold by Alexander Arms®
- Does not include a gas tube roll pin or any other supplies.
AR-15 replacement firing pin manufactured by Alexander Arms®
Features:
- AISI 8740 alloy steel in austempered spring condition
- Precision machined with correct transition radii to eliminate breakage
- Thin, dense chrome coating minimizes hydrogen embrittlement
- Trilobial main shank maintains alignment of the cam pin
- Provides reduced contact surface that produces easy sliding of the firing pin within the channel
- Provides clearance for dirt and carbon that results in more reliable function
- Proven to operate at -65 Celsius in correctly lubricated weapons
- Fluting is not cut all the way to the back of the firing pin, which keeps debris from entering the channel from the rear.
Features:
- AISI 8740 alloy steel in austempered spring condition
- Precision machined with correct transition radii to eliminate breakage
- Thin, dense chrome coating minimizes hydrogen embrittlement
- Trilobial main shank maintains alignment of the cam pin
- Provides reduced contact surface that produces easy sliding of the firing pin within the channel
- Provides clearance for dirt and carbon that results in more reliable function
- Proven to operate at -65 Celsius in correctly lubricated weapons
- Fluting is not cut all the way to the back of the firing pin, which keeps debris from entering the channel from the rear.