TacFire MAR001S Low Profile 6.25in Micro Gas Block for 5.56/.223 Rifles

The TacFire MAR001S Low Profile 6.25" Micro Gas Block Black Oxide Steel is precision CNC machined from stainless steel for erosion resistance and durability, delivering a compact, low-profile solution that replaces the A2 front sight to free up rail space for additional accessory mounting. This gas block is designed to accommodate 5.56/.223 calibers with a .625" diameter and is compatible with mid-length Specter-length or rifle-length hand guards on shorter gas systems, allowing you to optimize your rifle's balance and rail real estate. It arrives with the precision you expect from TacFire, including roll pins and set screws for secure installation, and requires no barrel modification, making it an ideal choice for upgrading an existing gas system while maintaining reliability. With its durable stainless steel construction and a clean finish, this block delivers consistent gas control and stable alignment for dependable cycling under sport or duty use. Whether you're tuning a rifle build for precision shooting or enhancing an established setup, the MAR001S offers a compact, robust upgrade that preserves sight height and broadens your mounting options without adding unnecessary bulk.