Colt AR-15 Sporter SP1 1975 Pre-Ban .223 Rem Semi-Automatic Rifle – 20" Chrome-Lined Barrel, Slick-Side Upper
Built in 1975, this Colt AR-15 Sporter SP1 represents the first civilian iteration of the AR-15 platform, produced well before the 1989 import restrictions and 1994 federal ban. Collectors value these early rifles for their slick-side upper, slab-side lower, and C MP-marked chrome-lined 20-inch A1-profile barrel. With its authentic 1970s configuration—including triangular handguards, fixed polymer stock with trap-door butt-plate, and closed-end A1 birdcage flash hider—this pre-ban Sporter offers a period-correct example for anyone seeking a clean, lightly used retro Colt.
Condition
Overall Condition: Very good condition, showing only light, superficial signs of prior handling or use.
Bore Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling Condition: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: Minor, superficial scratches and small blemishes are present on the exterior surfaces.
What’s Included
- M-1950 Parachutist's Individual Weapons soft case (1968-dated, OD green)
- AR-15 / M16 Assault Rifle Handbook (yellow cover, bubble-wrapped)
- Two 20-round USGI-pattern aluminum magazines
The receiver set is forged 7075-T6 aluminum with Colt’s original black hard-coat anodized finish and no forward assist or magazine fence, mirroring early military prototypes. Serial number block SP46308 falls within approximately 11,500 rifles produced in 1975, underscoring its early place in Sporter production.