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 Green Mountain 14.125" Thompson Machine Gun Barrel:
This Limited Edition 1928 Thompson barrel is fully machined with Square-shouldered Fins and threaded muzzle. Unique 14 1/8" length designed to allow the permanent installation of Cutts-type compensator to meet the 16" legal minimum barrel length. 45 ACP. Made with pride in USA.. Check out all the Green Mountain Thompson Replacement Barrels!
Target Barrels for Ruger 10-22! Customize your Ruger 10-22 with a Direct-fit high grade replacement barrel from Green Mountain!
Wake up your 10-22 rifle to a whole new level of performance and quality with a world renowned Green Mountain rifle barrel. Click picture to view our huge assortment of 10-22 replacement rifle barrels.
New manufactured UZI barrels made by Green Mountain Rifle Barrel Company:
Available in 16", 10", MINI and MICRO, with semi-auto and full-autoconfiguration, SBR, 9mm and 45ACP. All have chrome lined bore and chamber,and Parkerized finish. See all UZI barrel configurations.
Click here to BUY UZI 16" BARREL, or call (603) 447-1095
Click here to view and print catalog / price list
Notice to owners of our Black Powder "Drop-In" barrels: There is a possibility that the nipple on your rifle is defective. Metric threaded nipples were inadvertently installed in some barrels instead of the proper 1/4-28 threaded nipples. The serial number range in question if for percussion barrels # 030672 - 031352. Do not fire this rifle. Please contact us at 603-447-1095 x18 or ksmith@gmriflebarrel.com to arrange return shipping. The barrels will be inspected and if found compliant returned. If they are discrepant the breach plugs will need to be replaced so bear with us as this may take a while to complete. We apologize for the inconvenience.
Product Recall Notice Green Mountain needs to do a precautionary recall on some of our Thompson Center drop-in barrels. If you have a barrel in the following Serial Number range 026220-027303 please contact Kerry Smith at (603) 447-1095 x18 to make arrangements to have your barrel returned for inspection. Thank you and we are sorry for any inconvenience this may cause.