The Pro-Shot Benchrest Quality Spear Tip Jag .50 Cal (MPN: J50B) is a precision-machined bore maintenance tool designed for .50 caliber / 12.7 mm firearms. Manufactured in the USA from solid American brass, it features a pointed spear tip that pierces and centers cleaning patches to eliminate shifting, bunching, or binding within the barrel. Engineered with precision-grooved rings, this mechanical jag delivers continuous 360-degree contact across lands and grooves for thorough solvent distribution, lead removal, copper extraction, and carbon fouling clearance. The brass construction is softer than barrel steel, safeguarding delicate rifling and firearm crowns during deep cleaning cycles.

Key Features

• Spear-Tip Design: Pierces the center of cleaning patches to keep material evenly aligned and prevent patch bunching inside the bore.
• Full Circumferential Contact: Precision-grooved concentric rings press the patch uniformly against lands and grooves for thorough surface fouling removal.
• Precision Machined Brass: Machined to tight benchrest tolerances to prevent wobble and thread misalignment on standard cleaning rods.
• Barrel-Safe Material: Solid brass build protects internal rifling and barrel crowns from scoring or mechanical damage.
• Calibre Roll-Stamped: Clearly marked on the base for fast identification inside range bags and cleaning kits.

Product Specifications

• Calibre Compatibility: .50 Caliber / 12.7 mm
• Thread Interface: Standard American #8-32 male thread
• Material: Precision-machined solid brass
• Origin: Made in USA
• Power Requirements: None (manual cleaning accessory)

Who is the Proshot Spear Pointed Benchrest Jag 50 Cal for?

• .50 BMG rifle precision shooters — delivers precise 360-degree patch contact across large .50 caliber / 12.7 mm rifled bores to effectively strip heavy copper and carbon fouling without damaging match-grade rifling.
• .500 S&W Magnum handgun owners — utilizes a standard #8-32 male thread to mount directly to standard American cleaning rods for maintaining high-pressure .50 caliber / 12.7 mm revolver cylinders and barrels.
• .50 caliber muzzleloader enthusiasts — centers patches securely via the spear-pointed cleaning jag design to ensure consistent bore contact and fouling removal throughout deep .50 caliber / 12.7 mm muzzleloader barrels.

Less suitable for: Firearm bores smaller than .50 caliber / 12.7 mm (such as .338, .416, or .45 cal), where the jag will seize or wedge tightly in the barrel—these require dedicated sub-calibre jags—or cleaning setups utilizing small-bore rods with #5-40 threads or shotgun rods with #5/16-27 threads, which require thread-specific adapters or gauge-specific shotgun jags.