GREEN MOUNTAIN RUGER 10/22 HEAVY FLUTED BARREL WITH FIRE SIGHTS
A Bull Barrel That Still Likes Iron Sights.
The Green Mountain 901512 combines an 18″ heavy fluted bull-barrel profile with Fire Sights for a Ruger 10/22 build that puts a traditional sight picture back on the table. It is a distinctive alternative to the many bull barrels built strictly around optics.
Not every upgraded 10/22 needs to wear a scope. A substantial barrel with machined flutes and dedicated sights makes a compelling foundation for a traditional range rifle, plinking build or field gun. Green Mountain has long been associated with Ruger 10/22 replacement barrels, and this model is particularly interesting to shooters who want a heavy-contour barrel without giving up the appeal of open sights. Use it for: range practice, recreational target shooting and a Ruger 10/22 build centered on iron sights.
The Appeal of a Sights-Equipped Bull Barrel.
Most bull barrels favor a clean profile and leave optics to the receiver. The 901512 takes a different approach with its Fire Sights configuration. The fluted exterior gives the substantial barrel its own character, while the sight-equipped setup creates another way to enjoy a familiar rifle. If you plan to use a scope or red dot instead, we also carry Ruger 10/22 mounting solutions and red-dot sights.
Product Specifications
Manufacturer: Green Mountain
MPN: 901512
Platform: Ruger 10/22-pattern .22 LR rifle
Barrel Length: 18″
Barrel Profile: Heavy fluted bull
Sights: Fire Sights, as specified by the product listing
Finish: Dark finish shown in the product imagery; exact finish designation not independently confirmed
Barrel diameter, weight, chamber, twist, material, and muzzle threading: Confirm the exact 901512 specifications before ordering; do not assume the specifications of other Green Mountain barrels apply to this model.
Pair It With: Small Parts That Make Sense.
If the rifle is already apart, this is a practical time to refresh the supporting hardware. Our American-made parts are compact additions; they belong here rather than taking over the main build recommendations.
Viton Buffer + Trigger PinsStainless pins and recoil buffer combo.
Stainless V-Block ScrewsReplacement barrel-retaining hardware.
10/22 Picatinny Scope RailAn option if you later choose an optic.Find a Home for Your Barrel.
A heavy bull-contour barrel calls for a suitable channel and a rifle stock you actually enjoy shooting. Compare the MDT Field Stock, KRG Bravo and Oryx options below. Confirm the 901512 barrel dimensions and your chosen stock's barrel-channel clearance before placing the order.
Build Around It
Ruger 10/22 Stocks & Chassis
Four different ways to give a purpose-built rimfire barrel a home.
MDTMDT Field Stock Ruger 10/22Adjustable field-style stock with a supported forend.See Product →
KRGKRG Bravo Ruger 10/22A familiar precision-rifle feel for rimfire shooting.See Product →
MDTMDT Oryx Ruger 10/22Aluminum chassis approach to a range-ready rifle.See Product →
Pete's Pillars CustomMDT Oryx M81 WoodlandA custom Cerakote finish on the Oryx platform.See Product →Finish Your Build With the Big Components.
Once the barrel and stock are chosen, the trigger and bolt are the next meaningful decisions. A KIDD single-stage trigger is well worth comparing for a trigger-focused build, alongside the TandemKross Manticore and Volquartsen TG2000. We reference KIDD here rather than filling the product carousel with KIDD listings.
Finish Your Build
Triggers & Major Upgrades
Build-defining upgrades rather than another row of small hardware.
TandemKrossTandemKross Manticore Trigger – BlackComplete trigger assembly with integrated controls.See Product →
VolquartsenVolquartsen TG2000 Trigger – BlackPremium trigger assembly for a dedicated 10/22 build.See Product →
TandemKrossTandemKross KrossFire CNC BoltA complete bolt alternative for a more extensive rebuild.See Product →Prefer a Different Barrel Direction?
If the Fire Sights are the reason you are here, the 901512 stands apart from optic-oriented profiles. For a more conventional bull-barrel build, consider the Green Mountain 901507 18″ stainless fluted barrel, the Shaw 18″ stainless bull barrel or the Tactical Solutions X-Ring barrel with open sights. These are different products with their own specifications and fitment considerations.
Did You Know? Pete's Pillars Sells More Than Pillars.
From our own Made-in-USA small parts to the brands you already trust, we help shooters finish more than one corner of the build.
Frequently Asked Questions
Fitment, sights, barrel clearance, and related upgrade choices.
Which rifle does Green Mountain 901512 fit?
It is listed as a Ruger 10/22 .22 LR replacement barrel. Confirm compatibility with your exact receiver and rifle variant, especially if you have a Takedown or other nonstandard configuration.
What are the Fire Sights?
The 901512 is sold as a Fire Sights-equipped barrel, intended for shooters who want an open-sight option on a heavy fluted 10/22 barrel. Verify the precise sight configuration and adjustment specifications for this SKU before ordering.
Will it fit my factory 10/22 stock?
This is listed as a heavy fluted bull barrel, not a factory sporter-taper replacement. A factory sporter stock may not have enough barrel-channel clearance. Confirm the barrel diameter with Green Mountain and match it to your stock or chassis.
Is the 901512 threaded?
The listing does not confirm muzzle threading for this exact SKU. Do not assume it is threaded. If muzzle threads are essential, verify the 901512 specification before purchase or choose a barrel listing that explicitly specifies threading.
What is the twist rate and chamber specification?
I cannot independently verify the 901512-specific twist rate or chamber designation from the current listing. Green Mountain has used different specifications across its barrel line, so confirm directly with the manufacturer rather than transferring details from another model.
How does it compare with KIDD, Shaw or Tactical Solutions?
Green Mountain offers a traditional heavy barrel with Fire Sights on this listing. KIDD, Shaw and Tactical Solutions offer other design choices involving contour, weight, sights and construction. We carry quality products we can stand behind; choose based on how you plan to use the rifle. See the Tactical Solutions open-sight option.
What should I pair with this barrel?
Start with stock clearance, then consider a trigger and appropriate bolt hardware. Our Viton buffer and stainless trigger-pin kit and V-block screws are practical supporting parts. For more substantial upgrades, see the Volquartsen Competition Bolt and MDT Field Stock.
Pete's Pillars is an authorized Green Mountain dealer.
Small Change. Big Impact. Pete's Pillars.
GREEN MOUNTAIN RUGER 10/22 HEAVY FLUTED BARREL WITH FIRE SIGHTS
A Bull Barrel That Still Likes Iron Sights.
The Green Mountain 901512 combines an 18″ heavy fluted bull-barrel profile with Fire Sights for a Ruger 10/22 build that puts a traditional sight picture back on the table. It is a distinctive alternative to the many bull barrels built strictly around optics.
Not every upgraded 10/22 needs to wear a scope. A substantial barrel with machined flutes and dedicated sights makes a compelling foundation for a traditional range rifle, plinking build or field gun. Green Mountain has long been associated with Ruger 10/22 replacement barrels, and this model is particularly interesting to shooters who want a heavy-contour barrel without giving up the appeal of open sights. Use it for: range practice, recreational target shooting and a Ruger 10/22 build centered on iron sights.
The Appeal of a Sights-Equipped Bull Barrel.
Most bull barrels favor a clean profile and leave optics to the receiver. The 901512 takes a different approach with its Fire Sights configuration. The fluted exterior gives the substantial barrel its own character, while the sight-equipped setup creates another way to enjoy a familiar rifle. If you plan to use a scope or red dot instead, we also carry Ruger 10/22 mounting solutions and red-dot sights.
Product Specifications
Manufacturer: Green Mountain
MPN: 901512
Platform: Ruger 10/22-pattern .22 LR rifle
Barrel Length: 18″
Barrel Profile: Heavy fluted bull
Sights: Fire Sights, as specified by the product listing
Finish: Dark finish shown in the product imagery; exact finish designation not independently confirmed
Barrel diameter, weight, chamber, twist, material, and muzzle threading: Confirm the exact 901512 specifications before ordering; do not assume the specifications of other Green Mountain barrels apply to this model.
Pair It With: Small Parts That Make Sense.
If the rifle is already apart, this is a practical time to refresh the supporting hardware. Our American-made parts are compact additions; they belong here rather than taking over the main build recommendations.
Viton Buffer + Trigger PinsStainless pins and recoil buffer combo.Stainless V-Block ScrewsReplacement barrel-retaining hardware.10/22 Picatinny Scope RailAn option if you later choose an optic.Find a Home for Your Barrel.
A heavy bull-contour barrel calls for a suitable channel and a rifle stock you actually enjoy shooting. Compare the MDT Field Stock, KRG Bravo and Oryx options below. Confirm the 901512 barrel dimensions and your chosen stock's barrel-channel clearance before placing the order.
Build Around It
Ruger 10/22 Stocks & Chassis
Four different ways to give a purpose-built rimfire barrel a home.
MDTMDT Field Stock Ruger 10/22Adjustable field-style stock with a supported forend.See Product →KRGKRG Bravo Ruger 10/22A familiar precision-rifle feel for rimfire shooting.See Product →MDTMDT Oryx Ruger 10/22Aluminum chassis approach to a range-ready rifle.See Product →Pete's Pillars CustomMDT Oryx M81 WoodlandA custom Cerakote finish on the Oryx platform.See Product →Finish Your Build With the Big Components.
Once the barrel and stock are chosen, the trigger and bolt are the next meaningful decisions. A KIDD single-stage trigger is well worth comparing for a trigger-focused build, alongside the TandemKross Manticore and Volquartsen TG2000. We reference KIDD here rather than filling the product carousel with KIDD listings.
Finish Your Build
Triggers & Major Upgrades
Build-defining upgrades rather than another row of small hardware.
TandemKrossTandemKross Manticore Trigger – BlackComplete trigger assembly with integrated controls.See Product →VolquartsenVolquartsen TG2000 Trigger – BlackPremium trigger assembly for a dedicated 10/22 build.See Product →TandemKrossTandemKross KrossFire CNC BoltA complete bolt alternative for a more extensive rebuild.See Product →Prefer a Different Barrel Direction?
If the Fire Sights are the reason you are here, the 901512 stands apart from optic-oriented profiles. For a more conventional bull-barrel build, consider the Green Mountain 901507 18″ stainless fluted barrel, the Shaw 18″ stainless bull barrel or the Tactical Solutions X-Ring barrel with open sights. These are different products with their own specifications and fitment considerations.
Did You Know? Pete's Pillars Sells More Than Pillars.
From our own Made-in-USA small parts to the brands you already trust, we help shooters finish more than one corner of the build.
Frequently Asked Questions
Fitment, sights, barrel clearance, and related upgrade choices.
Which rifle does Green Mountain 901512 fit?
It is listed as a Ruger 10/22 .22 LR replacement barrel. Confirm compatibility with your exact receiver and rifle variant, especially if you have a Takedown or other nonstandard configuration.
What are the Fire Sights?
The 901512 is sold as a Fire Sights-equipped barrel, intended for shooters who want an open-sight option on a heavy fluted 10/22 barrel. Verify the precise sight configuration and adjustment specifications for this SKU before ordering.
Will it fit my factory 10/22 stock?
This is listed as a heavy fluted bull barrel, not a factory sporter-taper replacement. A factory sporter stock may not have enough barrel-channel clearance. Confirm the barrel diameter with Green Mountain and match it to your stock or chassis.
Is the 901512 threaded?
The listing does not confirm muzzle threading for this exact SKU. Do not assume it is threaded. If muzzle threads are essential, verify the 901512 specification before purchase or choose a barrel listing that explicitly specifies threading.
What is the twist rate and chamber specification?
I cannot independently verify the 901512-specific twist rate or chamber designation from the current listing. Green Mountain has used different specifications across its barrel line, so confirm directly with the manufacturer rather than transferring details from another model.
How does it compare with KIDD, Shaw or Tactical Solutions?
Green Mountain offers a traditional heavy barrel with Fire Sights on this listing. KIDD, Shaw and Tactical Solutions offer other design choices involving contour, weight, sights and construction. We carry quality products we can stand behind; choose based on how you plan to use the rifle. See the Tactical Solutions open-sight option.
What should I pair with this barrel?
Start with stock clearance, then consider a trigger and appropriate bolt hardware. Our Viton buffer and stainless trigger-pin kit and V-block screws are practical supporting parts. For more substantial upgrades, see the Volquartsen Competition Bolt and MDT Field Stock.
Pete's Pillars is an authorized Green Mountain dealer.
Small Change. Big Impact. Pete's Pillars.
| Brand | Green Mountain |
| Gun Platform | 10/22 |
| Type | Barrel |
| Barrel Length | 18" |