This is a complete bolt carrier group for AR-15 pattern rifles in 5.56, cut to the M16 carrier profile and finished in nitride, with a billet extractor. The supplier's text calls it new, while the listing's condition field reads used, so both are given here as received; the photo is a stock image, not the exact part. It is SKU MIS6389, listed under rifle accessories.

A bolt carrier group is the working core of an AR-15 upper: it strips a round from the magazine, locks into the barrel extension, fires, extracts and ejects. North Carolina owners building an upper from parts or replacing a worn carrier can drop this unit into a standard mil-spec receiver. Nitride is a hard, dark surface treatment, and the M16-profile carrier is the standard shape that fits a mil-spec upper. No weight, brand or packaging details are supplied, so the photographs and the listed facts are what you have to go on.

Key features

• Bolt carrier group for AR-15 rifles, 5.56
• M16 carrier profile
• Billet extractor
• Nitride finish
• Supplier lists it new; condition field says used

Parts like this bolt carrier group ship straight to your North Carolina address with no dealer stop.