Description
Item Description
Bryant Ridge Co. is pleased to present this double-action / single-action semi-automatic pistol for a penny-start auction, this is the STI International Model GP6 (Grand Power).
SPECIFICATIONS:
Manufacturer: Grand Power Ltd. (Slovakia) / Imported by STI International, Inc. (Georgetown, TX)
Model: GP6 (Grand Power K100 Mk06 Architecture)
Serial: G012976
Caliber: 9x19mm Parabellum (9mm Luger)
Finish: QPQ Tenifer Nitrocarburized Steel Slide w/ Polymer Steel-Insert Frame
Barrel Length: 4.25" Rotating Steel Barrel
Optics/Sights: Fixed Front Blade w/ Dovetailed Rear Sight
Stock/Grips: Ergonomic Molded Black Polymer Frame w/ Stippled Side Panels
Action: Double-Action / Single-Action (DA/SA), Rotating Barrel Lockup System w/ Fully Ambidextrous Thumb Safeties, Ambidextrous Magazine Release, and Detachable Box Magazine Feed
Markings: Stamped "GRAND POWER Ltd. / Made in SLOVAKIA" on left slide flank; right slide flank gold-filled stamped "STI GP6" and "STI INTERNATIONAL"; serial number "G012976" stamped on right slide, frame insert tag, and barrel chamber; frame forward stamped "FRAME MADE IN SLOVAKIA / GRAND POWER Ltd. / K100 Mk06 www.k100.sk".
Bryant Ridge's Analysis:
Designed by Jaroslav Kuracina and manufactured by Grand Power Ltd. in Slovakia, the GP6 was marketed in North America through a prestigious partnership w/ STI International of Georgetown, Texas—a legendary name in custom competition firearms. Built around Grand Power's patented rotating barrel locking system, the GP6 dispenses w/ traditional tilting-barrel designs in favor of a smooth rotational lockup driven by a cross-pin roller. This mechanism dramatically reduces felt muzzle flip by keeping the barrel axis parallel to the slide path throughout recoil, delivering exceptional split-second shot recovery for action shooting sports. Featuring a DA/SA trigger assembly w/ a match-grade single-action break, fully ambidextrous thumb safeties, ambidextrous magazine release controls, and a steel-reinforced polymer frame insert, the STI GP6 represents a highly innovative European competition and tactical sidearm. This specific example is an authentic STI International GP6 pistol bearing matching serial number G012976. Chambered in 9x19mm Parabellum, it features a 4.25-inch rotating steel barrel, fixed sights, and a QPQ nitrocarburized black finish over its steel slide and ergonomic polymer frame. The right slide flank displays gold-filled roll marks featuring the "STI GP6" model designation alongside the STI crest, while the frame retains crisp Grand Power Slovakia manufacturing stamps. The firearm exhibits excellent overall condition w/ minimal operational finish wear, ultra-smooth action cycling, and a mirror-bright bore. Complete w/ its original factory black hard case, STI end label, GP6 owner's manual, and (2) total double-stack factory magazines, this G-prefix STI GP6 offers an investment-grade presentation for STI collectors and competitive handgun purists.
Contents:
Model: GP6 (Grand Power K100 Mk06 Architecture)
Serial: G012976
Caliber: 9x19mm Parabellum (9mm Luger)
Finish: QPQ Tenifer Nitrocarburized Steel Slide w/ Polymer Steel-Insert Frame
Barrel Length: 4.25" Rotating Steel Barrel
Optics/Sights: Fixed Front Blade w/ Dovetailed Rear Sight
Stock/Grips: Ergonomic Molded Black Polymer Frame w/ Stippled Side Panels
Action: Double-Action / Single-Action (DA/SA), Rotating Barrel Lockup System w/ Fully Ambidextrous Thumb Safeties, Ambidextrous Magazine Release, and Detachable Box Magazine Feed
Markings: Stamped "GRAND POWER Ltd. / Made in SLOVAKIA" on left slide flank; right slide flank gold-filled stamped "STI GP6" and "STI INTERNATIONAL"; serial number "G012976" stamped on right slide, frame insert tag, and barrel chamber; frame forward stamped "FRAME MADE IN SLOVAKIA / GRAND POWER Ltd. / K100 Mk06 www.k100.sk".
Bryant Ridge's Analysis:
Designed by Jaroslav Kuracina and manufactured by Grand Power Ltd. in Slovakia, the GP6 was marketed in North America through a prestigious partnership w/ STI International of Georgetown, Texas—a legendary name in custom competition firearms. Built around Grand Power's patented rotating barrel locking system, the GP6 dispenses w/ traditional tilting-barrel designs in favor of a smooth rotational lockup driven by a cross-pin roller. This mechanism dramatically reduces felt muzzle flip by keeping the barrel axis parallel to the slide path throughout recoil, delivering exceptional split-second shot recovery for action shooting sports. Featuring a DA/SA trigger assembly w/ a match-grade single-action break, fully ambidextrous thumb safeties, ambidextrous magazine release controls, and a steel-reinforced polymer frame insert, the STI GP6 represents a highly innovative European competition and tactical sidearm. This specific example is an authentic STI International GP6 pistol bearing matching serial number G012976. Chambered in 9x19mm Parabellum, it features a 4.25-inch rotating steel barrel, fixed sights, and a QPQ nitrocarburized black finish over its steel slide and ergonomic polymer frame. The right slide flank displays gold-filled roll marks featuring the "STI GP6" model designation alongside the STI crest, while the frame retains crisp Grand Power Slovakia manufacturing stamps. The firearm exhibits excellent overall condition w/ minimal operational finish wear, ultra-smooth action cycling, and a mirror-bright bore. Complete w/ its original factory black hard case, STI end label, GP6 owner's manual, and (2) total double-stack factory magazines, this G-prefix STI GP6 offers an investment-grade presentation for STI collectors and competitive handgun purists.
Contents:
Original Matching Factory Hard Case, STI GP6 Owner's Manual, and (2) Total Factory Double-Stack Magazines.
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.
Bryant Ridge also reserves the right to cancel any sales that may occur while gunbroker.com is experiencing technical issues that affects the entire site or a complete site outage, within an hour of the auction ending.
We have an amazing inventory of classic and collector firearms that we are adding to Gunbroker daily. Stay up to date on all of our latest auction by adding us to your favorite sellers list.
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. 
Additional Information
GunbrokerLink: |
https://www.gunbroker.com/item/1201794432 |
BidPrice: |
0.01 |
AuctionEndDate: |
2026-09-27 21:00:00 |
CurrentBid: |
205.22 |
