JP JPRFX Precision Rimfire 22 LR Rifle

18" Bull Barrel - LMOS Bolt - Side-Charge - NRL22/PRS Rimfire The sports of NRL22 and PRS Rimfire have been dominated by manual rifles. But what could a premium semi-auto platform do with these demanding stage times and target arrays? JP founder John Paul has spent the last three years in exhaustive experimentation and development on this very question. Now at last, the JPRFX Precision Rimfire has arrived. This competition-dedicated platform is built around two components offering the vital accuracy and reliability to make this platform work: the JPRFX Precision Bull Barrel and the LMOS Rimfire Bolt Assembly. Features 18" heavy weight Supermatch bull barrel (1:14 twist, stainless steel, air-gauged within .0003" with bore uniformity within .0001", stress-relieved and lapped), suppressor-ready with installed 3-port compensator (1/2-28, timed and blended), LMOS Low Mass Operating System bolt with QPQ stainless steel and lightening cuts for rapid cycling, SCI-20 side-charge system with competition charging handle, semi-monolithic integral nut receiver with Thermo-Fit barrel installation, MK III free-floating Rapid Configuration hand guard (15.5" XL with ARCA Swiss rail), enhanced bolt catch for last-round lockback, Magpul PRS Lite adjustable stock (black), Hogue pistol grip, ambidextrous magazine release, JP Fire Control with 3.5-4 lb interchangeable trigger (roller black, yellow trigger spring, red hammer spring, silver levers), reversible safety, 10-round Black Dog magazine, and special collectors rifle box with custom foam. Gun Candy Chameleon (Raptor) finish. Chambered in 22 LR.

JPRFX Precision Bull Barrel

The lynchpin of this platform is the premium rimfire bull barrel, produced to such exacting specification that availability is limited by sheer necessity. The pinnacle of barrel manufacturing, each suppressor-ready 18" barrel must air-gauge within .0003" with a uniformity of bore that doesn't vary beyond .0001" for the entire length. Perfection like that relies on absolute precision with no small amount of luck. Each barrel is also stress-relieved and lapped to a pristine bore polish. Heavy weight contour with 1:14 twist in stainless steel.

LMOS Rimfire Bolt Assembly

The LMOS (Low Mass Operating System) bolt, manufactured from QPQ stainless steel, features lightening cuts for more rapid cycling. Critical geometry and parts relationships have been revised to all but eliminate ignition failures, making this a premium competition component used by some of the top shooters in Steel Challenge and Rimfire Challenge today.

3-Port Compensator

Installed 3-port compensator (1/2-28, timed and blended) reduces muzzle rise for fast follow-up shots. The compensator design enhances control during rapid target transitions.

SCI-20 Side-Charge System

Built on the semi-monolithic SCI-20 side-charge receiver platform with competition charging handle. The integral nut upper receiver provides maximum barrel support with Thermo-Fit barrel installation for a near fusion of components.

MK III Hand Guard with ARCA Rail

MK III free-floating Rapid Configuration hand guard (15.5" XL) with ARCA Swiss adapter plate provides versatile mounting platform. The knurled hand guard surface ensures secure grip with included sling swivel mount.

Enhanced Bolt Catch for 22 LR

Features JP's 22 LR Enhanced Bolt Catch for last-round lockback with compatible magazines. The enhanced bolt catch improves reload efficiency during competition.

Magpul PRS Lite Stock

Magpul PRS Lite precision adjustable stock in black provides stable shooting platform with length of pull and cheek height adjustment. The PRS Lite design delivers competition-level support.

JP Fire Control

JP Fire Control with 3.5-4 lb interchangeable trigger features roller black trigger, yellow trigger spring, red hammer spring, and silver modular levers. The enhanced reliability fire control provides crisp, consistent break with reversible safety.

Ambidextrous Controls

Ambidextrous magazine release with enhanced silver magazine release button accommodates both right- and left-handed shooters. The reversible safety provides ambi operation.

Gun Candy Chameleon Finish

Gun Candy Chameleon (Raptor) finish on rifle and hand guard provides distinctive iridescent appearance. The custom finish delivers unique color-shifting aesthetic.

Competition-Dedicated Platform

This competition-dedicated complete build answers the question: what could a premium semi-auto platform do with demanding NRL22 and PRS Rimfire stage times and target arrays? Three years of exhaustive development by JP founder John Paul delivers the answer. The JP JPRFX Precision Rimfire delivers semi-auto competition performance—air-gauged precision with LMOS reliability.

SPECIFICATIONS

• Manufacturer: JP Enterprises
• Model: JPRFX Precision Rimfire
• Caliber: 22 LR
• Action: Semi-Automatic
• Barrel: 18" Supermatch Bull Barrel, Heavy Weight Contour, Stainless Steel
• Barrel Twist: 1:14
• Barrel Tolerance: Air-gauged within .0003", bore uniformity within .0001"
• Barrel Treatment: Stress-Relieved and Lapped
• Barrel Threading: 1/2-28 (suppressor ready)
• Compensator: 3-Port, Timed and Blended (installed)
• Bolt: LMOS (Low Mass Operating System), QPQ Stainless Steel
• Receiver: SCI-20 Semi-Monolithic Integral Nut Billet
• Charging System: Side-Charge with Competition Handle
• Barrel Installation: Thermo-Fit
• Hand Guard: MK III Free-Floating Rapid Configuration, 15.5" XL, Knurled
• ARCA Rail: ARCA Swiss Adapter Plate (15")
• Sling Mount: Push Button Swivel (9:00 muzzle end)
• Bolt Catch: Enhanced for 22 LR (last-round lockback)
• Stock: Magpul PRS Lite Precision Adjustable, Black
• Grip: Hogue Pistol Grip
• Magazine Release: Ambidextrous with Enhanced Silver Button
• Trigger: JP Fire Control, 3.5-4 lb, Interchangeable
• Trigger Components: Roller Black, Yellow Trigger Spring, Red Hammer Spring
• Trigger Levers: Silver Modular (standard and low profile)
• Safety: Reversible, Full Throw
• Take Down Pins: Microfit (front and rear)
• Magazine Included: Black Dog 10-round Sonic Weld with Nylon Feed Lips
• Finish: Gun Candy Chameleon (Raptor)
• Included: Special Collectors Rifle Box with Custom Foam, Rifle Accessory Pack, JP Hat (Black)
• Competition: NRL22, PRS Rimfire, Steel Challenge, Rimfire Challenge