Description
Item Description
Bryant Ridge Co. is pleased to present this air rifle for a penny-start auction, this is the Unknown Big Bore PCP Air Rifle.
SPECIFICATIONS:
Manufacturer: Unknown
Model: Big Bore PCP Air Rifle
Caliber: .72 Cal
Finish: Black
Barrel Length: 28"
Optics/Sights: No Sights with Scope Mounts
Stock/Grips: Smooth Wood Thumbhole Stock
Action: Air Rifle
Markings: Standard
Bryant Ridge's Analysis:
The unknown .72-caliber air gun occupies a near-mythical place in big-bore airgun history, representing the absolute outer boundary of what compressed air can realistically propel without crossing into conventional firearms technology. With a bore diameter of roughly **.729 inches—equivalent to a 12-gauge shotgun—**this type of air rifle is less a sporting arm and more an engineering experiment, designed to explore extreme valve flow, reservoir volume, and projectile mass. Such rifles are typically single-shot, bolt-action or drop-breech designs, as no repeating system can reliably handle projectiles of this size, which may weigh 900 to well over 1,200 grains when cast as solid lead round balls or slugs. To move that much mass, the rifle must employ an enormous air reservoir, often a thick-walled steel tube extending nearly the full length of the action, paired with an oversized hammer and valve capable of dumping a massive volume of air in a single pulse. Fill pressures are usually lower than modern PCP standards, relying instead on sheer air volume, which results in extremely limited shot counts—often just one or two shots per fill. The barrel is correspondingly long and heavy to maximize efficiency and minimize recoil, while not sharp like a firearm, it is a slow, authoritative push generated by the projectile's momentum rather than explosive force. Stocks are typically custom-made, reinforced, and ergonomically shaped to support the rifle’s substantial weight, which can rival or exceed that of large-caliber safari rifles. Historically, these .72-caliber air guns have been associated with experimental builds and one-off custom projects, including rare examples attributed to master builders such as Dennis Quackenbush, rather than any form of commercial production. Today, the unknown .72-cal air gun stands as a testament to mechanical ingenuity and the curiosity of airgun pioneers, admired less for practicality and more for its audacious scale and the proof it offers that compressed air, when properly harnessed, can drive projectiles of truly astonishing size.
Return Policy:
We gladly offer a 3 day unfired inspection policy from the time that the firearm is delivered to your FFL. Refunds are available for all qualifying orders.
Model: Big Bore PCP Air Rifle
Caliber: .72 Cal
Finish: Black
Barrel Length: 28"
Optics/Sights: No Sights with Scope Mounts
Stock/Grips: Smooth Wood Thumbhole Stock
Action: Air Rifle
Markings: Standard
Bryant Ridge's Analysis:
The unknown .72-caliber air gun occupies a near-mythical place in big-bore airgun history, representing the absolute outer boundary of what compressed air can realistically propel without crossing into conventional firearms technology. With a bore diameter of roughly **.729 inches—equivalent to a 12-gauge shotgun—**this type of air rifle is less a sporting arm and more an engineering experiment, designed to explore extreme valve flow, reservoir volume, and projectile mass. Such rifles are typically single-shot, bolt-action or drop-breech designs, as no repeating system can reliably handle projectiles of this size, which may weigh 900 to well over 1,200 grains when cast as solid lead round balls or slugs. To move that much mass, the rifle must employ an enormous air reservoir, often a thick-walled steel tube extending nearly the full length of the action, paired with an oversized hammer and valve capable of dumping a massive volume of air in a single pulse. Fill pressures are usually lower than modern PCP standards, relying instead on sheer air volume, which results in extremely limited shot counts—often just one or two shots per fill. The barrel is correspondingly long and heavy to maximize efficiency and minimize recoil, while not sharp like a firearm, it is a slow, authoritative push generated by the projectile's momentum rather than explosive force. Stocks are typically custom-made, reinforced, and ergonomically shaped to support the rifle’s substantial weight, which can rival or exceed that of large-caliber safari rifles. Historically, these .72-caliber air guns have been associated with experimental builds and one-off custom projects, including rare examples attributed to master builders such as Dennis Quackenbush, rather than any form of commercial production. Today, the unknown .72-cal air gun stands as a testament to mechanical ingenuity and the curiosity of airgun pioneers, admired less for practicality and more for its audacious scale and the proof it offers that compressed air, when properly harnessed, can drive projectiles of truly astonishing size.
Return Policy:
We gladly offer a 3 day unfired inspection policy from the time that the firearm is delivered to your FFL. Refunds are available for all qualifying orders.
Shipping Details
Handgun Standard Shipping with Insurance $50.00
Long Gun Standard Shipping with Insurance $70.00
Any orders placed with magazines that are not compliant with your state, county, or city regulations will not ship with your order.
We strive to ship orders within the close of the following business day after payment and documentation is received.
Payment Details
We accept all forms of Payment including Personal Check, Business Check, PO Money Orders, Certified Check, Etc.
Please note we place a 7 business day hold on shipment, for all non-certified payments.
Payment MUST be received within 14 days.
Return Policy
We gladly offer a 3 day unfired inspection policy from the time that the firearm is delivered to your FFL. Refunds are available for all qualifying orders.
Additional Details
Our #1 priority is customer satisfaction. We want to build a lasting trust in the relationship with our customers, so that you will always look to us for all your firearms needs. If you have any issues with your transactions please contact us, and we will work with you to resolve any issues you may have. We greatly appreciate your trust in us and we look forward to fulfilling all your future firearm needs.
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About Us
From a small town hobby, to a leader in the investment and collector grade firearms industry. Bryant Ridge Firearms is here to offer the best in quality and customer service when you are looking to unload your collector grade firearm collection. 
