The Ruger American Rimfire® Model 8312 is a lightweight .17 HMR bolt-action rifle designed for precision varmint hunting, target shooting, and recreational shooting. Featuring an 18-inch cold hammer-forged threaded barrel, 9-round rotary magazine, Williams™ fiber optic sights, interchangeable stock modules, and the Ruger Marksman Adjustable™ trigger, the 8312 delivers exceptional accuracy and the flat-shooting performance of the .17 HMR cartridge in a versatile sporting rifle.
Built on Ruger's proven American Rimfire platform, Model 8312 utilizes the Power Bedding® integral bedding block system, which positively locates the receiver while free-floating the barrel for enhanced accuracy and repeatable shot placement. The Ruger Marksman Adjustable™ trigger allows shooters to customize trigger pull weight for a crisp, consistent break without sacrificing safety or reliability.
The rifle features an 18-inch cold hammer-forged alloy steel barrel chambered in .17 HMR. The barrel utilizes a 1:9-inch right-hand twist and comes factory threaded 1/2"-28 with a knurled thread protector installed, allowing attachment of compatible muzzle accessories where legally permitted.
Model 8312 features a durable black synthetic stock with Ruger's modular stock system. Two interchangeable comb modules are included—a low comb for use with iron sights and a high comb optimized for scoped shooting—allowing shooters to tailor the rifle to their preferred setup. The standard stock provides a comfortable 13.75-inch length of pull suitable for most adult shooters.
The rifle comes equipped with Williams™ fiber optic sights, including a bright green fiber optic front sight and an adjustable rear sight for excellent visibility in varying lighting conditions. The receiver features a 3/8-inch rimfire scope base and is drilled and tapped for Weaver® #12 bases, making optic installation simple and flexible.
The rifle feeds from Ruger's reliable 9-round rotary magazine designed specifically for .17 HMR cartridges. Additional features include a 70-degree bolt throw, tang-mounted manual safety, oversized bolt handle, sling swivel studs, and a lightweight overall weight of just 5.5 pounds, making it ideal for carrying in the field.
Combining a threaded barrel, modular stock system, adjustable trigger, and Ruger's proven bolt-action design, the Ruger American Rimfire Model 8312 is an excellent choice for hunters and shooters looking for a highly accurate and adaptable rimfire rifle.
Key Features
- Chambered in .17 HMR
- 9-round rotary magazine
- Bolt-action operation
- 18" cold hammer-forged barrel
- 1/2"-28 threaded muzzle
- Factory-installed thread protector
- Ruger Marksman Adjustable™ trigger
- Ruger Power Bedding® bedding system
- Black synthetic stock
- Interchangeable low and high comb stock modules
- Williams™ fiber optic front sight
- Adjustable rear sight
- 3/8" rimfire scope base
- Drilled and tapped for Weaver® #12 bases
- Tang-mounted manual safety
- Oversized bolt handle
- Sling swivel studs
- Lightweight 5.5-pound design
