Colt AR-15 A3 Tactical Carbine 6721 lower receiver group – Sold Out

This item is now sold.

Colt AR-15 A3 Tactical Carbine (6721) 5.56mm new take-off lower receiver group.

This lower receiver group is a take-off from a new Colt 6721 carbine. It is marked “Colt AR-15 A3 Tactical Carbine” and “Colt Defense” and has the restriction marking on the right side of the receiver: “Military/Government Law Enforcement/Export Use Only”.  The group comes with the Colt buffer tube and H-buffer and the Colt pistol grip.

We have various stock bodies to choose from that can be added to this group, including MAGPUL & Colt. Please call or email for details.

Sorry – we are currently out of stock of this item.

The matching flat-top upper receiver with charging handle from the original Colt 6721 carbine that this lower receiver came from is also available for purchase for $225. Please go to the last picture to see the upper and lower together.

Pictures are of actual lower receiver group.

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