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Colt 6721 AR15-A3 Tactical Carbine

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Colt 6721 AR15-A3 Tactical Carbine

The Colt 6721 AR-15 Tactical Carbine with Flat top Upper. Comes equipped with a Magpul MBUS backup Rear sight .  ThisTactical Carbine has with a 16” heavy barrel with a 1/9 twist which allows for flexibility in ammunition selection.

Product Specifications

Caliber: 5.56mm
Weight: 7.3 lbs (3.31 kg)
Overall Length (Stock Retracted): 32 in. (81.28 cm)
Overall Length (Stock Extended): 35.5 in. (90.17 cm)
Barrel Length: 16.1 in. (40.89 cm) Heavy
Rate of Fire: SEMI
Rifling: 1/9 RH
Effective Range: 600 m
Magazine Capacity: 30

Receiver marked: M-4 Carbine


PLEASE NOTE: If you live in a magazine restricted state we remove the hi cap mag and will be glad to substitute with a 10 round mag IF AVAILABLE. If a 10 round mag is not available we will remove the hi cap magazine from the shipment. We cannot ship prohibited magazines to out of state addresses. There will be no substitutions or discounts offered for removal of mags.

It is your responsibility to be familiar with your current local gun laws BEFORE placing your order. Please feel free to email us with questions you may have.

By placing an order with Atlantic Firearms you are acknowledging and agreeing to all Terms and Conditions outlined in the Terms And Conditions section.



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Atlantic Firearms,llc
10337 Bunting Road
Bishopville, MD 21813
Office: (410) 352-5183
Voice: (410) 352-5183
Fax: (410) 352-3374