Description
Item Description
Bryant Ridge Co. is pleased to present this premium tactical 1911 pistol for a penny-start auction, this is an STI International Duty One 4.0.
SPECIFICATIONS:
Manufacturer: STI International
Model: Duty One 4.0
Serial: NG 17347
Caliber: 9mm Luger (9x19mm Parabellum)
Finish: Matte Black Cerakote / Tactical DLC
Barrel Length: 4.0" Heavy Ramped Stainless Steel Bull Barrel
Optics/Sights: Ramped Tactical Front Sight & Low-Profile Ledge-Style Combat Rear Sight w/ Grid Anti-Glare Texturing
Stock/Grips: STI Logo Contoured Black G10 Grips w/ Aggressive Golf-Ball / Waffle Texturing & Front-Strap Checkering
Action: Single-Action Semi-Automatic Pistol (SAO) w/ Skeletonized Match Trigger & Integrated Tactical Accessory Rail
Markings: Slide left roll-marked "DUTY ONE 4.0"; slide right engraved Texas outline w/ STI logo; frame right stamped "STI INTERNATIONAL / GEORGETOWN, TX USA" and serial "NG 17347"; barrel chamber hood stamped "9 X 19"; box label printed "PISTOL 4.0 DUTY ONE 9", "10-240002", and serial "NG 17347".
Bryant Ridge's Analysis:
Renowned for championship-grade precision and engineering, STI International expanded beyond pure competition firearms to build the ultimate duty and tactical platform: the Duty One series. Built on a traditional single-stack 1911 steel frame, the Duty One 4.0 delivers the hand-fitted accuracy of an STI match gun in a dedicated concealed-carry and tactical configuration. Featuring a 4-inch ramped heavy bull barrel, an integral full-length Picatinny accessory rail for weapon lights and lasers, unique grid-milled tactical cocking serrations, an undercut trigger guard, aggressively textured G10 grips, and an overtravel-adjustable skeletonized trigger, the Duty One 4.0 is engineered for uncompromising real-world reliability.
This example is an authentic Georgetown, Texas-manufactured STI International Duty One 4.0 chambered in 9mm, with matching serial number NG 17347 on the frame and the original factory box label. Built for hard-use precision, it features a 4.0-inch ramped bull barrel, durable matte black finish, integral light rail, tactical low-profile sights, and custom-profiled G10 grips with STI medallions. The matte tactical finish presents in pristine, near-mint condition throughout, with crisp machine serrations and razor-sharp engravings. Mechanically, the slide-to-frame fit is glass-smooth with zero play, the skeletonized match trigger breaks with clean, light precision, and the 4.0-inch stainless barrel bore is mirror-bright with razor-sharp rifling.
Contents:
Model: Duty One 4.0
Serial: NG 17347
Caliber: 9mm Luger (9x19mm Parabellum)
Finish: Matte Black Cerakote / Tactical DLC
Barrel Length: 4.0" Heavy Ramped Stainless Steel Bull Barrel
Optics/Sights: Ramped Tactical Front Sight & Low-Profile Ledge-Style Combat Rear Sight w/ Grid Anti-Glare Texturing
Stock/Grips: STI Logo Contoured Black G10 Grips w/ Aggressive Golf-Ball / Waffle Texturing & Front-Strap Checkering
Action: Single-Action Semi-Automatic Pistol (SAO) w/ Skeletonized Match Trigger & Integrated Tactical Accessory Rail
Markings: Slide left roll-marked "DUTY ONE 4.0"; slide right engraved Texas outline w/ STI logo; frame right stamped "STI INTERNATIONAL / GEORGETOWN, TX USA" and serial "NG 17347"; barrel chamber hood stamped "9 X 19"; box label printed "PISTOL 4.0 DUTY ONE 9", "10-240002", and serial "NG 17347".
Bryant Ridge's Analysis:
Renowned for championship-grade precision and engineering, STI International expanded beyond pure competition firearms to build the ultimate duty and tactical platform: the Duty One series. Built on a traditional single-stack 1911 steel frame, the Duty One 4.0 delivers the hand-fitted accuracy of an STI match gun in a dedicated concealed-carry and tactical configuration. Featuring a 4-inch ramped heavy bull barrel, an integral full-length Picatinny accessory rail for weapon lights and lasers, unique grid-milled tactical cocking serrations, an undercut trigger guard, aggressively textured G10 grips, and an overtravel-adjustable skeletonized trigger, the Duty One 4.0 is engineered for uncompromising real-world reliability.
This example is an authentic Georgetown, Texas-manufactured STI International Duty One 4.0 chambered in 9mm, with matching serial number NG 17347 on the frame and the original factory box label. Built for hard-use precision, it features a 4.0-inch ramped bull barrel, durable matte black finish, integral light rail, tactical low-profile sights, and custom-profiled G10 grips with STI medallions. The matte tactical finish presents in pristine, near-mint condition throughout, with crisp machine serrations and razor-sharp engravings. Mechanically, the slide-to-frame fit is glass-smooth with zero play, the skeletonized match trigger breaks with clean, light precision, and the 4.0-inch stainless barrel bore is mirror-bright with razor-sharp rifling.
Contents:
This example ships complete in its original factory serialized case with matching box label, owner's manual packet, STI decals, Lucas Extreme Duty gun oil, STI bushing wrench/tool, and cable lock as pictured.
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/1215981569 |
BidPrice: |
0.01 |
AuctionEndDate: |
2026-11-15 22:00:00 |
CurrentBid: |
0.01 |
