Estate Coins & Guns -PCGS, NGC Gold and Silver Bullion
Lot 417: Colt Model SP1 AR-15 Upper Assembly 5.56 NATO
2025-11-22T15:00:00Z
Start price: $250
Estimated price: $500 - $700
Lot 417:
Colt Model SP1 AR-15 Upper Assembly 5.56 NATO
Description
Factory Colt Model SP1 upper receiver assembly chambered in 5.56 NATO, featuring a 20-inch CMP-marked chrome bore barrel. This early pattern SP1 upper represents the classic lightweight, fixed-carry-handle design with triangular handguards and birdcage flash hider, true to the original civilian AR-15 rifles introduced by Colt in the 1960s. The chrome-lined bore and CMP marking indicate a high-quality military-spec barrel. Offered as an upper assembly only.
Condition report:
Photos Attached are of the Actual Item(s) contained within this lot. See Photos as evidence of condition.
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