Yankee Hill Machine Co YHM Suppressor Gas Block – AR-15/AR-10

The YHM Suppressor Gas Block is designed for shooters running suppressors on AR-pattern rifles who need precise gas system control. This adjustable gas block allows you to tune gas flow to reduce bolt velocity and carrier speed when shooting suppressed, minimizing excess gas blowback and felt recoil while maintaining reliable cycling with unsuppressed fire.

Machined from stainless steel with a durable finish, this gas block features a user-adjustable screw that restricts gas flow without tools during range sessions. Installation requires removal of the existing gas block and handguard—straightforward for experienced builders, though professional installation is recommended if you're unfamiliar with gas system work. The low-profile design fits under most free-float handguards.

• Part Type: Adjustable Gas Block
• Compatible Firearms: AR-15, AR-10, and AR-pattern rifles with .750" gas journal (verify barrel diameter)
• Material: Stainless Steel
• Finish: Stainless
• Installation: Requires gas block removal; professional installation recommended for less experienced builders
• Includes: Gas block, adjustment screw, mounting hardware