Sootch00
Sootch00 04 Aug 2012
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FAIL ZERO EXO AR15 / M4 Bolt Carrier Group

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Fun Gun Reviews Presents: The Fail Zero EXO AR15/M4 Nickel-Boron coated Bolt Carrier Group from AB Arms. If you want a super reliable AR15 rifle and failure is not an option, upgrading to the Fail Zero EXO system is one of the best options on the market.

You can find these at American Built Arms ABarms

Thanks for watching~ Sootch00

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