Features:

• Molded one-piece chassis and adjustable buttstock assembly are manufactured with glass-filled nylon for strength stiffness and stability making a solid foundation for accuracy each and every shot. Adjustable buttstock features a flat Picatinny bag rider making it easy to affix a rear monopod. A molded-in window provides a tether point for your squeeze bag and a metal QD pocket makes it easy to secure a sling
• Quick-Fit adjustable Precision Rimfire stock allows length of pull and comb height to be quickly and easily adjusted to get proper fit over a wide range of shooter sizes outerwear and shooting positions. Indicating marks molded into the chassis help you quickly return to a previous position.
• Big-Gun bolt throw adjustment enables shooters to change from a rimfire 1-1/2' bolt throw to a short-action centerfire 3' bolt throw reducing the chance of short-stroking your bolt in competition.
• Ruger Marksman Adjustable? trigger has a pull weight range of 2.25 to 5.0 pounds; adjusting wrench is stored in a buttstock compartment.
• Ruger's own AR-Pattern pistol grip and safety selector incorporates an extended reach for maximum control and access to the 45 degree reversible safety selector. May be configured with most AR-style grips and selectors.
• Anodized Picatinny scope base includes 30 MOA elevation for increased long-range capabilities out of the box.
• Oversized bolt handle for positive bolt manipulation (same as the Ruger Precision Rifle®).
• 15" free-float handguard is made of hard black anodized aluminum and features Magpul® M-LOK® slots on all four sides for improved scope clearance and easy mounting of M-LOK-compatible rails and accessories.
• 18" target barrel is cold hammer-forged from 1137 alloy steel to create ultra precise rifling for excellent accuracy. Barrels can be replaced easily by a competent gunsmith using AR-style wrenches and headspace gauges.
• Threaded barrel (1/2"-28) for standard muzzle accessories like the Silent-SR® suppressor comes with a factory-installed thread protector covering both the threads and crown.
• Accepts all 10/22® magazines.
• Also includes: one 15-round BX-15® magazine.

Specifications:

• MODEL NUMBER: 8400
• CALIBER: 22 LR
• Stock: Quick-Fit Precision Rimfire Adjustable
• Capacity: 15
• Barrel Length: 18"
• Overall Length: 35.13" - 38.63"
• Grip: AR-Pattern
• Handguard: Free-Float Magpul® M-LOK® Aluminum
• Handguard Finish: Hard Black Anodized
• Thread Pattern: 1/2"-28
• Length of Pull: 12" - 15.50"
• Sights: None-Rail Installed
• Barrel: Threaded Cold Hammer-Forged 1137 Alloy Steel
• Weight: 6.8 lb.
• Twist: 1:16" RH
• Grooves: 6