Description
Item Description
Bryant Ridge Co. is pleased to present this semi-automatic rifle for a penny-start auction, this is the Colt AR-15 Model SP1 .223 Remington / 5.56 NATO.
SPECIFICATIONS:
Manufacturer: Colt
Model: AR-15 Model SP1
Serial: SP52257
Date of Manufacture: 1975
Caliber: .223 Remington / 5.56x45mm NATO
Finish: Original Factory Matte Gray Anodized Aluminum Receivers w/ Parkerized Steel Barrel
Barrel Length: 20" Lightweight Profile Barrel w/ A1 Birdcage Flash Hider
Optics/Sights: Fixed Integrated Carry Handle Upper Receiver w/ A1 Rear Aperture Sight & A1 Front Sight Post
Stock/Grips: Original A1 Triangular Polymer Handguards, A1 Pistol Grip, & Fixed A1 Trapdoor Buttstock
Action: Direct Impingement Semi-Automatic w/ Slick-Side Upper Receiver (No Forward Assist/Shell Deflector)
Markings: Lower receiver left side stamped Rampant Colt logo, "COLT AR-15 / CAL. .223 / MODEL SP1 / SER. SP52257", & "COLT'S PATENT FIRE ARMS MFG. CO. / HARTFORD, CONN. U.S.A.". Lower receiver selector marked "SAFE / FIRE".
Bryant Ridge's Analysis:
First introduced commercially in 1964 as the civilian counterpart to the iconic U.S. military M16 rifle, the Colt AR-15 Model SP1 stands as the definitive original commercial black rifle. Manufactured in Hartford, Connecticut, during the height of the Cold War and Vietnam era, early SP1 rifles feature the sought-after "slick-side" upper receiver design—devoid of a forward assist or brass deflector—paired with classic A1 triangular handguards, an integrated carry handle, and a lightweight 20-inch barrel with an A1 birdcage flash hider. Built with forged 7075-T6 aluminum receivers finished in Colt's original matte gray anodizing, the SP1 represents the foundational icon from which all modern AR-15 sporting rifles evolved, holding immense prestige among military arms collectors and retro rifle purists.
This outstanding vintage Vietnam-era example, serial number SP52257, is a genuine Colt AR-15 Model SP1 manufactured in Hartford in 1975. Chambered in .223 Remington / 5.56 NATO, this original SP1 features the correct 20-inch lightweight barrel, A1 birdcage flash hider, slick-side upper receiver, fixed carry handle, triangular handguards, trapdoor A1 buttstock, and two-point black canvas sling. Preserved in clean, highly maintained original condition throughout, with crisp gray anodized receiver coverage, sharp Colt factory rollmarks, smooth mechanical action, and a mirror-bright, razor-sharp bore, this 1975 Colt SP1 offers military surplus purists and vintage Colt collectors an exceptional, investment-grade centerfire rifle.
Contents:
Model: AR-15 Model SP1
Serial: SP52257
Date of Manufacture: 1975
Caliber: .223 Remington / 5.56x45mm NATO
Finish: Original Factory Matte Gray Anodized Aluminum Receivers w/ Parkerized Steel Barrel
Barrel Length: 20" Lightweight Profile Barrel w/ A1 Birdcage Flash Hider
Optics/Sights: Fixed Integrated Carry Handle Upper Receiver w/ A1 Rear Aperture Sight & A1 Front Sight Post
Stock/Grips: Original A1 Triangular Polymer Handguards, A1 Pistol Grip, & Fixed A1 Trapdoor Buttstock
Action: Direct Impingement Semi-Automatic w/ Slick-Side Upper Receiver (No Forward Assist/Shell Deflector)
Markings: Lower receiver left side stamped Rampant Colt logo, "COLT AR-15 / CAL. .223 / MODEL SP1 / SER. SP52257", & "COLT'S PATENT FIRE ARMS MFG. CO. / HARTFORD, CONN. U.S.A.". Lower receiver selector marked "SAFE / FIRE".
Bryant Ridge's Analysis:
First introduced commercially in 1964 as the civilian counterpart to the iconic U.S. military M16 rifle, the Colt AR-15 Model SP1 stands as the definitive original commercial black rifle. Manufactured in Hartford, Connecticut, during the height of the Cold War and Vietnam era, early SP1 rifles feature the sought-after "slick-side" upper receiver design—devoid of a forward assist or brass deflector—paired with classic A1 triangular handguards, an integrated carry handle, and a lightweight 20-inch barrel with an A1 birdcage flash hider. Built with forged 7075-T6 aluminum receivers finished in Colt's original matte gray anodizing, the SP1 represents the foundational icon from which all modern AR-15 sporting rifles evolved, holding immense prestige among military arms collectors and retro rifle purists.
This outstanding vintage Vietnam-era example, serial number SP52257, is a genuine Colt AR-15 Model SP1 manufactured in Hartford in 1975. Chambered in .223 Remington / 5.56 NATO, this original SP1 features the correct 20-inch lightweight barrel, A1 birdcage flash hider, slick-side upper receiver, fixed carry handle, triangular handguards, trapdoor A1 buttstock, and two-point black canvas sling. Preserved in clean, highly maintained original condition throughout, with crisp gray anodized receiver coverage, sharp Colt factory rollmarks, smooth mechanical action, and a mirror-bright, razor-sharp bore, this 1975 Colt SP1 offers military surplus purists and vintage Colt collectors an exceptional, investment-grade centerfire rifle.
Contents:
This example will ship w/ an attached black canvas sling as shown.
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.
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.
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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. 
Additional Information
GunbrokerLink: |
https://www.gunbroker.com/item/1200295643 |
BidPrice: |
105 |
AuctionEndDate: |
2026-09-13 21:00:00 |
CurrentBid: |
1575.01 |
