
Availability: In Stock
If you're running 6.5 Grendel through an AR-15 platform, the CMMG AR-15 6.5 Grendel 10-round replacement magazine delivers the capacity and reliability you need for hunting, precision rifle work, or range sessions. This stainless steel magazine feeds the heavier, longer Grendel cartridge reliably in a standard AR-15 magazine well—no special lower receiver needed. The 10-round capacity keeps you compliant in most jurisdictions while giving you enough rounds downrange between reloads for hunting or practice.
The magazine's stainless steel body with black finish resists corrosion and wear, and the blue anti-tilt follower keeps rounds oriented properly during feeding. That follower design matters: it reduces the chance of rounds tipping or binding as they feed into the chamber, which is especially important with a cartridge as precise as the Grendel. Whether you're zeroing a new setup, competing, or hunting medium game, reliable feeding is non-negotiable.
CMMG has built a reputation for AR-platform innovation and quality since 2002, and this magazine reflects that attention to function. If you're already invested in 6.5 Grendel or 6mm ARC (or 22 ARC), a dedicated, purpose-built magazine ensures your rifle cycles the way it should. Stock up with a spare or two so you're never caught short at the range or in the field.
| Cartridge | 6.5 Grendel (also 6mm ARC, 22 ARC) |
| Capacity | 10 rounds |
| Material | Stainless steel body |
| Finish | Black |
| Follower Type | Blue anti-tilt |
| Compatibility | AR-15 magazine well |
| Part Number | 66AFC70 |
| Manufacturer | CMMG |
Yes. This magazine is designed for standard AR-15 magazine wells and feeds 6.5 Grendel (as well as 6mm ARC and 22 ARC) without any modifications to your lower receiver.
This magazine is purpose-built for the longer, heavier 6.5 Grendel cartridge. A standard 5.56 magazine won't reliably feed Grendel due to the different round dimensions. Using the right magazine ensures consistent feeding and reliability.
The blue anti-tilt follower keeps rounds oriented correctly as they feed upward into the chamber. This reduces the chance of a round tipping, binding, or failing to feed—critical for reliable operation, especially with a precision cartridge like Grendel.
The body is stainless steel with a black finish, offering durability and corrosion resistance. The follower is the blue anti-tilt design.

SKU: 121689231 • Width: 4.3in • Height: 1in • Depth: 6in • Weight: 0.24oz





Availability: In Stock
If you're running 6.5 Grendel through an AR-15 platform, the CMMG AR-15 6.5 Grendel 10-round replacement magazine delivers the capacity and reliability you need for hunting, precision rifle work, or range sessions. This stainless steel magazine feeds the heavier, longer Grendel cartridge reliably in a standard AR-15 magazine well—no special lower receiver needed. The 10-round capacity keeps you compliant in most jurisdictions while giving you enough rounds downrange between reloads for hunting or practice.
The magazine's stainless steel body with black finish resists corrosion and wear, and the blue anti-tilt follower keeps rounds oriented properly during feeding. That follower design matters: it reduces the chance of rounds tipping or binding as they feed into the chamber, which is especially important with a cartridge as precise as the Grendel. Whether you're zeroing a new setup, competing, or hunting medium game, reliable feeding is non-negotiable.
CMMG has built a reputation for AR-platform innovation and quality since 2002, and this magazine reflects that attention to function. If you're already invested in 6.5 Grendel or 6mm ARC (or 22 ARC), a dedicated, purpose-built magazine ensures your rifle cycles the way it should. Stock up with a spare or two so you're never caught short at the range or in the field.
| Cartridge | 6.5 Grendel (also 6mm ARC, 22 ARC) |
| Capacity | 10 rounds |
| Material | Stainless steel body |
| Finish | Black |
| Follower Type | Blue anti-tilt |
| Compatibility | AR-15 magazine well |
| Part Number | 66AFC70 |
| Manufacturer | CMMG |
Yes. This magazine is designed for standard AR-15 magazine wells and feeds 6.5 Grendel (as well as 6mm ARC and 22 ARC) without any modifications to your lower receiver.
This magazine is purpose-built for the longer, heavier 6.5 Grendel cartridge. A standard 5.56 magazine won't reliably feed Grendel due to the different round dimensions. Using the right magazine ensures consistent feeding and reliability.
The blue anti-tilt follower keeps rounds oriented correctly as they feed upward into the chamber. This reduces the chance of a round tipping, binding, or failing to feed—critical for reliable operation, especially with a precision cartridge like Grendel.
The body is stainless steel with a black finish, offering durability and corrosion resistance. The follower is the blue anti-tilt design.
SKU: 121689231 • Width: 4.3in • Height: 1in • Depth: 6in • Weight: 0.24oz
