Proof Research | LATITUDE LOP 22LR | 18 in Sendero

The Proof Research Latitude LOP is a precision-oriented rimfire rifle built around a carbon fiber-wrapped, cut-rifled barrel and the Zermatt Arms RimX action for repeatable performance. The Latitude includes an adjustable carbon fiber stock, a TriggerTech Special trigger, and a threaded muzzle, with a stated sub 1/2 MOA accuracy guarantee at 50 yards. A good optic pairing under $1,000 for this platform is the Vortex Viper PST Gen II 2.5-15×44, which balances magnification range and clarity for rimfire precision work.

Applications for this rifle include precision rimfire training and small-game hunting.

Product Specifications

• The UPC is 843068135471.
• The manufacturer is Proof Research.
• The model is listed as PROOF LATITUDE LOP.
• The caliber is specified as .22 LR.
• The barrel measures 18 inches and is cut-rifled with a carbon-fiber wrap.
• The twist rate is 1:16.
• The action is a right-hand RimX bolt action built to Zermatt Arms dimensions.
• The stock is a Proof carbon fiber Latitude with adjustable length of pull and cheek height.
• The length of pull is adjustable from 11 to 14 1/8 inches.
• The rifle ships with a TriggerTech Special trigger.
• The magazine is a 10-round DBM (RimX) magazine.
• The muzzle is finished and threaded 1/2-28 and includes a thread protector.
• The rifle includes a 20 MOA rail base for optics mounting.
• The bolt knob is a modified ball style.
• The manufacturer guarantees sub 1/2 MOA accuracy at 50 yards as tested.

The Latitude LOP is built for a shooter who values a true precision rimfire platform: the carbon-wrapped barrel and RimX action create a stable, repeatable foundation, while the adjustable stock and TriggerTech trigger let you tailor the fit for consistent shot execution. The threaded 1/2-28 muzzle and 20 MOA rail provide flexibility for suppressors and optics suited to accuracy work. If you want a high-end rimfire that accepts modern accessories and delivers on tight groups, this Latitude LOP is engineered to perform.