Colt AR-15 SP1 Sporter R6000 .223 Rem, 20 in Pencil Barrel, A1 Sights, Pre-Ban 1974, Slick-Side Upper
This Colt AR-15 Sporter Model SP1 (catalog R6000) is a classic, pre-ban rifle built in 1974 and chambered in .223 Rem. It features the hallmark 20-inch lightweight pencil barrel, slick-side upper without forward assist or case deflector, and slab-side lower. Original A1-pattern furniture, forged receivers with hard-coat anodized finish, and correct A1 sights underscore its period-correct configuration.
Condition
Overall Condition: Good condition, showing some signs of prior use and handling.
Bore Overall Condition: Good - Clean, well-maintained, minor wear marks.
Bore Rifling: Good Rifling - Intact, well-defined lands and grooves.
Specific Condition Details: There are signs of wear and handling, including scratches and blemishes.
What’s Included
- 1x 20-round USGI-style aluminum box magazine
- OD green web sling (installed)
This SP1 presents the early Colt Sporter pattern with a 20-inch lightweight pencil barrel and threaded muzzle fitted with the prong-type closed-tip flash suppressor. It retains the A-frame front sight base with the A1 front post and the A1 rear aperture contained in the fixed carry handle with windage drum.
The upper receiver is the desirable slick-side configuration with no forward assist or case deflector. The lower receiver is the slab-side style without a magazine-release fence and uses the large 0.315-inch screw front pivot pin, matching the period-correct SP1 architecture.
Furniture is true to the era: a fixed A1 buttstock with a 13-inch length of pull, A1 checkered pistol grip, and two-piece triangular polymer/fiberglass handguards secured by a round slip ring. The receivers are forged aluminum alloy with a hard-coat anodized finish and carry Colt Hartford rollmarks including "COLT AR-15 / CAL .223 / MODEL SP1."
Chambered in .223 Rem with a 20+1 capacity and a detachable box magazine design, this semi-automatic, direct impingement rifle reflects Colt’s 1970s production. It is pre-ban, manufactured in 1974, made in the United States, and identified by the R6000 catalog designation.