Ruger® Mark IV Product Safety Warning and Recall Notice
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Ruger Precision Rimfire

Bringing the big-gun experience to the rimfire world.

  • 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. Model 8401 ships with two, 10-round BX-1 magazines.

QUICK-FIT PRECISION RIMFIRE ADJUSTABLE STOCK

Model No. Caliber Capacity Stock Barrel Length Handguard Thread Pattern Length of Pull Weight Suggested Retail
8400 22 LR 15 Quick-Fit Precision Rimfire Adjustable 18" Free-Float Magpul® M-LOK® Aluminum 1/2"-28 12" - 15.50" 6.8 lb. $529.00 Spec SheetBuy Now
8401 22 LR 10 Quick-Fit Precision Rimfire Adjustable 18" Free-Float Magpul® M-LOK® Aluminum 1/2"-28 12" - 15.50" 6.8 lb. $529.00 Spec SheetBuy Now
  • Features
  • Adjustments
  • Disassembly
  • Cleaning
  • Reassembly