. Muzzleloader Barrels, Ruger 10/22, BPCR, Muzzleloading Supplies | Green Mountain Rifle Barrel CO.
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It’s MAY,

It’s Time for a New Barrel!

Bargains Are Blooming, Our GM-M9, 16” phosphated barrel, and GM-M29, 14.5” 5.56mm barrel are 15% OFF regular prices!


It’s NEW,

It’s LIMITED!

Click Here for details




Green Mountain Rifle Barrels provide the world's best competitive shooters and enthusiasts with accuracy and dependability they can count on. Uncompromising quality is achieved by crafting barrels using a hands-on approach in production. Individual attention is dedicated to ensure that each barrel is of the safest, most accurate and dependable quality. Select a category to left to view our premium quality replacement rifle barrels.



NEW From GMRB!

Green Mountain Rifle Barrel Co Now Offers LASER Engraving for a Truly CUSTOM Barrel For Your New Build!

Click HERE For More Details!





Come See Us!

Our New Retail Store is located right in front of our Factory at 153 West Main St in Conway, New Hampshire

Watch for our Billboard Sign just south of Conway, NH!



Please note: Same-Day Shipment of in-stock orders is not Guaranteed. In-stock orders placed after 11:00 AM (Eastern) Thursday will be processed the following Monday. (holidays excluded) Please call us to discuss Time Sensitive requirements. Thank you