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Will Future U.S. Military Submarines Be Invisible to Enemy Sonar Detection?: Enter Acoustic Metamaterial Cloaking Tech

By David Crane defrev (at) gmail (dot) com June 16, 2009 It looks like the whole metamaterial/negative-index material movement just got another shot in the arm with the development of an "acoustic metamaterial lens" that can theoretically create an acoustic/sonic "invisibility cloak" a.k.a. "cloak of silence" capable of hiding military submarines from enemy detection. DefenseReview first reported on metamaterials a.k.a. negative-index …

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CNN’s Rick Sanchez Attacks Fox News and Calls American Gun Buyers/Purchasers “Alarmists”.

By David Crane defrev at gmail dot com April 10, 2009 DefenseReview received an interesting CNN video clip (link below) yesterday from the good folks at the Second Amendment Foundation (SAF), yesterday, showing SAF president Alan Gottlieb (Alan M. Gottlieb) going up against the combined brain trust–and we use that term loosely–of CNN news anchor/commentator/newly-appointed hatchet man Rick Sanchez and …

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CMMG Gas Piston/Op-Rod-Driven Semi-Auto AR Shotgun (Box Mag-Fed)

By David Crane defrev at gmail dot com February 8, 2009 While DefenseReview was at the CMMG Inc. booth at SHOT Show 2009, CMMG co-owner Jeff Overstreet showed us a very interesting prototype gas-piston/op-rod-driven AR-config semi-auto 12-gauge shotgun. The new shotgun features aluminum billet upper and lower receivers and winter triggerguard, and it will utilize a proprietary CMMG box magazine …

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PWS Diablo Long-Stroke Gas Piston/Op-Rod-Driven 5.56mm AR-15 SBR Upper Receiver

By David Crane defrev at gmail dot com All photographic images contained in this article were taken by DefenseReview.com, and are the exclusive property of DefenseReview.com. DefenseReview.com owns the copyright on these photos. All photos were shot with an Olympus Stylus 790 SW 7.1-megapixel digital camera, which is advertised as "shock + waterproof". This article last updated on February 7, …

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KAC BulletFlight Sniper App for M110 SASS-Mounted iPhone or iPod Touch

By David Crane defrev at gmail dot com January 29, 2009 DefenseReview ran into Rob Silvers (a.k.a. Robert Silvers) of Advanced Armament Co. (AAC) fame at the AAC booth at the very tail end of SHOT Show 2009, whereupon Rob showed us the ballistic computing software application a.k.a. ballistics calculating software application he had designed for the Apple iPod Touch …

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MagPul Dynamics Single-Point (One-Point)/Two-Point Tactical Carbine/Rifle Sling

By David Crane defrev at gmail.com All photographic images contained in this article were taken by DefenseReview.com, and are the exclusive property of DefenseReview.com. DefenseReview.com owns the copyright on these photos. All photos were shot with an Olympus Stylus 790 SW 7.1-megapixel digital camera, which is advertised as "shock + waterproof". January 25, 2009 DefenseReview is always interested in new …

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