. Muzzleloader Barrels, Ruger 10/22, BPCR, Muzzleloading Supplies | Green Mountain Rifle Barrel CO.
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That New Barrel You Want Is On Sale!

The 1970 model, AK47-1GM,The Fluted 901675 22LR Sporter, And a Carbine 5.56 AR GM-M29 Should Cover It!

NOTICE to owners of GMRB’s “Drop-In” barrels: There is a possibility that the nipple on your rifle is defective. Metric threads were installed on some barrels in place of the proper ¼-28 threads for nipples. These barrels, if affected, will bear a serial number between #030672 and #031352. If you have a barrel in this serial range and doubt the nipple threads please call Mike Hagar at 603-447-1095 or email mhagar@gmriflebarrel.com to arrange a return, inspection and repair if required. We apologize for any inconvenience.
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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.


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

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Come See Us!

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

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