By David Crane defrev (at) gmail (dot) com July 27, 2011 DefenseReview first became aware of the TNW SGP-QCB (System Gas Piston-Quick Change Barrel) 5.56x45mm NATO (5.56mm NATO)/.223 Rem. gas piston/op-rod tactical AR carbine/SBR (Short Barreled Rifle) weapons/upper receiver assemblies in December 2009 in a NorthwestFirearms.com forum thread. We subsequently did some additional research on the system in early June …

By Jeff Gurwitch July 25, 2011 When I first saw that Adams Arms (AA) was going to offer a super-lightweight upper with a “pencil thin” barrel, I was very skeptical. I could not help but think back to my time in basic training many years ago, where I was issued a M16A1. Thin profile barrels just seemed flimsy and out …

By Mike Pannone July 11, 2011 I’ve been shooting 5.45 [5.45x39mm Russian] AR platforms for several years now, but the Spike’s Tactical is the best, by far. The names of the other brands are not important, other than the fact that they all ran well and were both direct impingement and piston driven. Reliability being the same, overall accuracy and …

The following is an Adams Arms (AA) press release: PALM HARBOR, FL – July 7, 2011 – Adams Arms, Inc., the industry leader in piston technology, announced today that upon issuance of its third patent it has filed a lawsuit in Federal Court against Sig Sauer for patent infringement. Michael K Froning, the President and Chief Executive Officer of Adams …

The following is an Adams Arms (AA) press release: PALM HARBOR, FL – July 5, 2011 – Adams Arms, Inc., the industry leader in piston technology, announced today that a third patent covering its revolutionary inverted piston operating system has been issued by the USPTO. Michael K Froning, the President and Chief Executive Officer of Adams Arms (AA), stated: “We …

By Jeff Gurwitch June 19, 2011 Last updated on 6/20/11. Well, this last year, I finally did it; after 12 years of service, to include 3 combat tours and countless hours spent on the range, I retired my old trusty Blackhawk 2-inch nylon reinforced duty belt. I must admit that when it comes to gear, I have the “if it’s …

by David Crane defrev (at) gmail (dot) com All photos and video clips contained in this article were shot by DefenseReview.com (DR), and are copyrighted. DefenseReview.com owns the copyright on these materials. The photos and video clips were shot with a Canon PowerShot S90 10-megapixel digital camera (still camera with video capability). June 15, 2011 While DefenseReview.com (DR) was making …

By David Crane defrev (at) gmail (dot) com All photos contained in this article were shot by DefenseReview.com (DR), and are copyrighted. DefenseReview.com owns the copyright on these materials. The photos were shot with a Canon PowerShot S90 10-megapixel digital camera (still camera with video capability). May 15, 2011 Last updated on 6/03/11. While the production-version Atlantic Signal (AS) DOMINATOR …

By J.B. (Federal LEO) All photos (except for the first two/top two 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). You can identify DR’s photos because they were taken at SHOT Show …

By David Crane defrev (at) gmail (dot) com April 21, 2011 Updated on 4/21/11. A company called Adcor Defense is manufacturing and marketing a new gas piston/op-rod (operating rod) tactical AR (AR-15) rifle/carbine/SBR (Short Barreled Rifle) called the B.E.A.R. Gas Piston Rifle (GPR). “B.E.A.R.” is an acronym that stands for “Brown Enhanced Automatic Rifle”, since the weapon was designed and …