Tag Archives: colt le 6940

A Tale of Two Custom Mid-Length AR Carbines: The Frankengun (Frankencarbine) Project

David Crane February 23, 2010

By David Crane defrev (at) gmail (dot) com All photos contained in this article were taken by DefenseReview.com, and are copyrighted. DefenseReview.com owns the copyright on these photos. The photos were shot with a Canon PowerShot S90 10-megapixel digital camera (still camera with video capability). February 23, 2010 DefenseReview plans to run two custom-built tactical AR carbines (AR-15 carbines) through …

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Video: Colt M4/M4A1 Carbine Config Sand Test with FailZero “AR-15 Upgrade Kit” Bolt Carrier Group (BCG) and Hammer Upgrade Kit Installed

David Crane November 10, 2009

By David Crane defrev (at) gmail (dot) com November 10, 2009 Back in April (2009), DefenseReview has published a short “heads-up”-style article on the FailZero AR-15 Basic Kit, which is a bolt carrier group (BCG) and hammer upgrade kit with a proprietary and patented self-lubricitous/self-lubricating nickel-boron (Ni-B) coating that the company calls EXO Technology. In the video below, DefenseReview.com contributor …

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