Description
Item Description
Bryant Ridge Co. is pleased to present this billet AR-15 stripped lower receiver for a penny-start auction, this is a Specialized Tactical Systems SX3.
According to the owner, this example remains in "NEW OLD STOCK" condition, and we see no evidence to indicate otherwise!
SPECIFICATIONS:
Manufacturer: Specialized Tactical Systems (STS) - Ogden, Utah, USA
Model: SX3 Billet Lower Receiver
Serial: SX320113
Caliber: Multi-Caliber / Stamped CAL 5.56
Finish: Matte Black Hardcoat Anodized CNC Machined Billet Aircraft Aluminum
Action: Billet Semi-Automatic AR-15 Stripped Lower Receiver w/ Integrated Enlarged Trigger Guard, Flared Magwell, and Pictogram Selector Markings
Markings: Right magazine well deeply engraved w/ "SPECIALIZED / TACTICAL SYSTEMS"; right side of frame stamped "STS OGDEN, UT"; left side of frame stamped serial "SX320113 / CAL 5.56"; fire control selector markings feature custom bullet pictograms.
Bryant Ridge's Analysis:
Engineered specifically to deliver custom match-grade precision and tactical rigidity, Specialized Tactical Systems (STS) of Ogden, Utah produced exceptionally high-quality CNC billet components for custom rifle builders. Unlike standard forged lower receivers, the SX3 is precision-machined from a solid block of high-strength aircraft-grade aluminum alloy, resulting in striking angular frame contours and enhanced structural reinforcement along high-stress areas. Designed w/ built-in custom ergonomics, the SX3 features an oversized integrated winter trigger guard, a heavily flared magazine well for rapid tactical reloading, clean pictographic fire control selector markings, and a crisp matte black hardcoat anodized protective finish. Engineered to Mil-Spec interior dimensions for seamless compatibility w/ standard AR-15 lower parts kits, upper receivers, and buffer assemblies, this Ogden, Utah-manufactured billet receiver serves as a premier base for any custom precision rifle build.
This specific example is an authentic Specialized Tactical Systems SX3 Billet Stripped Lower Receiver bearing serial number SX320113. Deeply engraved on the right magazine well w/ the stylized "SPECIALIZED TACTICAL SYSTEMS" logo and stamped "STS OGDEN, UT", it features an integrated winter trigger guard, flared magwell feed, and custom pictogram selector markings. The matte black hardcoat anodized aluminum finish displays excellent overall preservation w/ clean frame cuts, crisp engraving, and zero signs of operational pin wear or assembly degradation. Complete in its original factory white box w/ matching label dated March 21, 2013, this rare STS SX3 billet lower receiver represents an outstanding foundation for AR-15 builders and custom rifle enthusiasts.
Contents:
Model: SX3 Billet Lower Receiver
Serial: SX320113
Caliber: Multi-Caliber / Stamped CAL 5.56
Finish: Matte Black Hardcoat Anodized CNC Machined Billet Aircraft Aluminum
Action: Billet Semi-Automatic AR-15 Stripped Lower Receiver w/ Integrated Enlarged Trigger Guard, Flared Magwell, and Pictogram Selector Markings
Markings: Right magazine well deeply engraved w/ "SPECIALIZED / TACTICAL SYSTEMS"; right side of frame stamped "STS OGDEN, UT"; left side of frame stamped serial "SX320113 / CAL 5.56"; fire control selector markings feature custom bullet pictograms.
Bryant Ridge's Analysis:
Engineered specifically to deliver custom match-grade precision and tactical rigidity, Specialized Tactical Systems (STS) of Ogden, Utah produced exceptionally high-quality CNC billet components for custom rifle builders. Unlike standard forged lower receivers, the SX3 is precision-machined from a solid block of high-strength aircraft-grade aluminum alloy, resulting in striking angular frame contours and enhanced structural reinforcement along high-stress areas. Designed w/ built-in custom ergonomics, the SX3 features an oversized integrated winter trigger guard, a heavily flared magazine well for rapid tactical reloading, clean pictographic fire control selector markings, and a crisp matte black hardcoat anodized protective finish. Engineered to Mil-Spec interior dimensions for seamless compatibility w/ standard AR-15 lower parts kits, upper receivers, and buffer assemblies, this Ogden, Utah-manufactured billet receiver serves as a premier base for any custom precision rifle build.
This specific example is an authentic Specialized Tactical Systems SX3 Billet Stripped Lower Receiver bearing serial number SX320113. Deeply engraved on the right magazine well w/ the stylized "SPECIALIZED TACTICAL SYSTEMS" logo and stamped "STS OGDEN, UT", it features an integrated winter trigger guard, flared magwell feed, and custom pictogram selector markings. The matte black hardcoat anodized aluminum finish displays excellent overall preservation w/ clean frame cuts, crisp engraving, and zero signs of operational pin wear or assembly degradation. Complete in its original factory white box w/ matching label dated March 21, 2013, this rare STS SX3 billet lower receiver represents an outstanding foundation for AR-15 builders and custom rifle enthusiasts.
Contents:
Original Factory Serialized Outer Packaging Box.
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/1203654439 |
BidPrice: |
0.01 |
AuctionEndDate: |
2026-09-27 21:00:00 |
CurrentBid: |
50.99 |
