^Lot 539 Colt M16 Complete Upper Receiver

with "A1" features such as 20" slender profile barrel marked "C MP CHROME BORE", 6 flute birdcage flash hider, triangular front sight base with bayonet lug & sling swivel, post front sight has 5 detent notches, A1 upper receiver with tear drop forward assist plunger, triangular cross section handguards, M16 cut bolt carrier (marked "SE" on left side). Charging handle appears USGI style with oversized tactical latch fitted. Front lug hole is smaller size (not the larger sized hole found on commercial SP1 type Colt rifles). Condition overall is very good with even coverage medium gray parkerizing, very good condition handguards. Front sight base appears pitted under refinish.