CMMG Zeroed Adjustable Gas Block .750" AR-15

CMMG Zeroed Adjustable Gas Block

The CMMG Zeroed Adjustable Gas Block puts you in complete control of your AR-15's gas system. Whether you're running a suppressor, shooting specialized ammunition, or simply optimizing your rifle's performance, this component delivers the precision tuning serious shooters demand.

Key Features

• 20-position detent adjustment for precise gas flow control
• Nitride 4140 steel construction for durability and corrosion resistance
• User-serviceable design with sacrificial cleanout chamber
• Fits .750" diameter barrels on AR-15 platforms
• Includes 6" 3/32" hex wrench and roll pin for installation and adjustment

Why Adjustable Gas?

A properly tuned gas system is the foundation of reliable, accurate shooting. Too much gas and your rifle batters itself unnecessarily. Too little and you risk short-stroking and failures to cycle. The CMMG Zeroed block eliminates guesswork with its 20 detent positions, allowing you to dial in the exact amount of gas your rifle needs.

Practical Design

The sacrificial cleanout chamber captures excess carbon buildup, keeping it away from critical components. When it's time to clean, you can easily access and remove the accumulated carbon—no disassembly headaches. This straightforward approach to maintenance reflects sound engineering principles that have stood the test of time.