Odin WorksAll Odin Works barrels

ODIN Works 20" 6.5 Grendel Rifle-Length Barrel, w/ BCG & Gas Block B-6.5-20-R-TG-BCG

Odin Works 20" 6.5 Grendel Rifle-Length Barrel, w/ BCG & Gas Block B-6.5-20-R-TG-BCG - Barrel for AR-15 - view 1
Odin Works 20" 6.5 Grendel Rifle-Length Barrel, w/ BCG & Gas Block B-6.5-20-R-TG-BCG - Barrel for AR-15 - view 2
Odin Works 20" 6.5 Grendel Rifle-Length Barrel, w/ BCG & Gas Block B-6.5-20-R-TG-BCG - Barrel for AR-15 - view 3
Odin Works 20" 6.5 Grendel Rifle-Length Barrel, w/ BCG & Gas Block B-6.5-20-R-TG-BCG - Barrel for AR-15 - view 4
Odin Works 20" 6.5 Grendel Rifle-Length Barrel, w/ BCG & Gas Block B-6.5-20-R-TG-BCG - Barrel for AR-15 - view 5
Buy Now

Odin Works

Overview

The Odin Works 20" 6.5 Grendel rifle-length barrel is designed to provide enhanced accuracy and performance for your AR-15 builds. With a twist rate of 1:8, this barrel stabilizes a wide range of bullet weights, allowing for versatile ammunition choices while the rifle-length gas system ensures reliable cycling and soft recoil. This barrel is particularly suited for precision-oriented builds that require the benefits of the 6.5 Grendel caliber for long-range shooting, although it also appears in many standard 5.56 NATO configurations.

Specifications

MPNB-6.5-20-R-TG-BCG
Gas System LengthRifle
Caliber6.5 Grendel
Barrel Length20
Twist Rate1:8

Available Merchants(4)

Prices checked

Price Alert

Log in to set a price alert on this product.

BattleHawk Armory logo
BattleHawk Armory
Shipping varies
Shipping Speed
In Stock
$432
Buy Now
AT
AT3 Tactical
Shipping TBD
Shipping Speed
In Stock
$432
Buy Now
Primary Arms logo
Primary Arms
Free shipping
Shipping Speed
In Stock
$437
Buy Now
Optics Planet logo
Optics Planet
Free shipping
Shipping Speed
Out of Stock
$288
Buy Now

Build history on GunPartPicker

Builders on GunPartPicker first added the ODIN Works 20" 6.5 Grendel Rifle-Length Barrel, w/ BCG & Gas Block B-6.5-20-R-TG-BCG to a build in May 2026.

Availability is good: it was in stock at one retailer or another nearly every day in August 2026, and today 3 of the 4 retailers we track have it in stock. The best price crept up from $287.75 to $432.25 over August 2026. Buying today, the lowest price is $432.25 at BattleHawk Armory, above August's low of $287.75, so a better deal may come back.

Trending barrels →

Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 35 retailers

Not sure which barrel to pick?

We ranked every barrel by how often it shows up in real builds on GunPartPicker.

Read the guide: AR-15 Barrel Length & Brand Report →

Check it against the live catalog:

Frequently Built With

Popular alongside barrels on GunPartPicker

Bravo Company Mfg Upper Receiver Assembly w/ Laser T-Markings, Hard Coated Anodized - 4-UR-M4

Bravo Company Mfg Upper Receiver Assembly w/ Laser T-Markings, Hard Coated Anodized - 4-UR-M4

Upper Receiver$129 · out of stockin 867 builds
Aero Precision Stripped M4E1 AR-15 Lower Receiver - Special Edition - Freedom

Aero Precision Stripped M4E1 AR-15 Lower Receiver - Special Edition - Freedom

Lower Receiver$155 · out of stockin 304 builds
Aero Precision AR-15 Breach Charging Handle Ambidextrous Small Levers

Aero Precision AR-15 Breach Charging Handle Ambidextrous Small Levers

Charging Handle$85 · out of stockin 480 builds
Maximize Your AR-15's Potential with Tacfire's 15" ACE M-LOK Handguard - Black Excellence - HG20-15

Maximize Your AR-15's Potential with Tacfire's 15" ACE M-LOK Handguard - Black Excellence - HG20-15

Handguard$42in 279 builds
Bravo Company M16 Bolt Carrier Group Black

Bravo Company M16 Bolt Carrier Group Black

Bolt Carrier Group$199in 653 builds
Geissele Automatics AR-15 SSA-E X Lightning Bow Trigger

Geissele Automatics AR-15 SSA-E X Lightning Bow Trigger

Trigger$335in 443 builds

Review this product

Share your thoughts with other customers

Be the first to review

No reviews yet. Be the first to review this product!