Make: Colt Model: AR6721 Caliber: 5.56x45 NATO
Colt 5.56x45 NATO AR6721 7.3lb, 32" collapsed and 35.5" extended direct gas AR Styled rifle. It has a chrome lined barrel with 6 grooves and a 1 in 9 right hand twist. It comes wit...(more)
Posted by Jason Brumett
One of the most tested and proven weapons systems in the world achieves ultimate refinement with the introduction of the Sig 516 rifle. With its ambidextrous selector switch, chrome lined, nitride finished, military grade barrel and adjustable, three position gas regulator, the Sig 516 incorporates all of the most desirable mechanical improvements. Add to these a free floating quad rail forend and barrel and you have the most advanced, versatile AR bases rifle available.
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