Pre-Ban Colt AR-15 Model SP1 .223 Rem 20” Semi-Automatic Rifle, MFG 1975
SOLD FOR: $1,425.00
LSB#: LSB250708MS036
Make: Colt
Model: SP1
Serial Number: SP39471
Year of Manufacture: 1975
Caliber/Gauge: 5.56x45mm NATO / .223 Remington
Action Type: Semi-automatic, direct impingement
Barrel Length: 20” (1/12” twist rate pencil profile barrel)
Sights / Optics: The front sight is the standard A1 post iron sight and the rear has an iron dual aperture peep sight atop the A1 carry handle.
Grip/Stock Configuration & Condition: The grip is a standard A1 style pistol grip. The stock is a fixed A1 style stock with a sling ring on the bottom and storage compartment in the stock. The forend is the classic two piece A1 style triangular handguard with an internal heat shield. There is light surface wear on the furniture. All of the furniture is in Very Good to Fine condition.
Type of Finish: Matt black
Finish Originality: Original
Bore Condition: The bore is mostly bright and the rifling is sharp. There is no erosion in the bore. In this writer’s opinion, the bore rates 9 out of 10.
Overall Condition: This rifle retains about 99% of its original metal finish. The balance of finish shows light wear with some surface blemishes from handling and storage. The pins are clean and unmarred. Overall, this rifle rates in about Fine condition.
Mechanics: The action functions correctly. The safety also functions correctly. We did not fire this rifle. We have cleaned this firearm and performed a mechanic’s check but expect many will want to clean the firearm again depending on their standards.
Box, Paperwork & Accessories: None
Our Assessment: The Colt AR-15 SP1, introduced in 1964, was the first civilian AR-15. This 1975 production example represents the classic pre-ban configuration with its slab-side lower, triangular handguards, and A1 fixed stock. At the time, it mirrored the U.S. military’s M16 rifles but was configured for semi-automatic fire only.
As a Colt SP1, it carries strong collector value as both a historic civilian AR and a highly shootable rifle. For enthusiasts of Colt, Vietnam-era small arms, or early AR-15 history, this SP1 is a must-have example of Eugene Stoner’s enduring design. Be sure to check our detailed pictures for a better understanding of the firearm. -C.R.
