Centurion Arms Carbon Steel Gas Block Matte Black This is the only one that can guarantee fits

Centurion Arms Carbon Steel Gas Block, Matte Black, This gas block is the only one that Centurion Arms can guarantee fits under the CMR. This is due to the CMR's extreme low profile. GB-CS
Model: Carbon Steel
Finish/Color: Matte
Type: Gas Block
Manufacturer: Centurion Arms
Model: Carbon Steel
Mfg Number: GB-CS

Enter your ZIP code for an exact shipping cost on this item. Hazardous-materials fees, where they apply, are included in the total shown.

Read our full shipping policy

Firearms must ship to a licensed dealer (FFL), who completes the transfer and the required background check when you collect the item.

How FFL transfers work · Terms of sale · Product and legal restrictions