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 4, 2010 After last year’s SHOT Show (2009), DefenseReview published information on the Primary …
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Video: FERFRANS SOAR (Special Operations Assault Rifle) Gas Piston/Op-Rod 5.56mm AR-15 Tactical Carbine Full-Auto Mag Dump with MWG 90-Rounder Snail Drum Magazine
October 26, 2009 DefenseReview contributor Chen Lee a.k.a. “SMGLee” recently got a chance to run a FERFRANS SOAR 5.56x45mm NATO (5.56mm NATO) select-fire/full-auto gas piston/op-rod tactical AR carbine and SBR (Short-Barreled Rifle) at the range. In the above video, you can see him perform 90-round full-auto mag dump using an MWG 90-Rounder snail drum magazine. Company Contact Info: Ferdie Sy …
Read More »SIG SAUER SIG516 Short-Stroke Gas Piston/Op-Rod Tactical AR (AR-15) Weapons Series
By David Crane defrev (at) gmail (dot) com September 21, 2009 Updated May 31, 2010 Back in June, DefenseReview published an article on the Ruger SR-556 piston AR. Well, it’s now official: Everyone AND their mother is now making short-stroke gas piston/op-rod AR (AR-15) carbines and SBRs (Short Barreled Rifles). SIG SAUER has just entered the game with their SIG516 …
Read More »Ruger SR-556 Gas Piston/Op-Rod AR Carbine User Feedback: Case Extraction Problem and Solution.
By David Crane defrev (at) gmail (dot) com August 26, 2009 Back on June 7, 2009, DefenseReview published a heads-up piece on the new Ruger SR-556 gas piston/op-rod AR-15 tactical carbine. In that piece I wrote this: “One of the things were going to investigate is whether or not the SR556 is completely debugged, or whether it has the normal/usual …
Read More »Ruger SR-556 Gas Piston/Op-Rod AR-15 Carbine/Rifle: Ruger Enters the Piston-Driven AR Fray
By David Crane defrev (at) gmail (dot) com Photo Credits: Sturm Ruger & Co., Inc. June 7, 2009 Updated on 6/16/09 Ever since the late
Read More »LMT MRP Piston/Op-Rod System vs. HK416: 2,000-Round Head-to-Head Test
By Chen Lee a.k.a. “SMGLee” All photographic images contained in this article were taken by Chen Lee, and are the exclusive property of Chen Lee. Chen Lee owns the copyright on these photos. February 16, 2009 Following the success of British SA80A2 project that HK did for British MoD, HK carried that momentum to the AR-15/M16 platform as the next …
Read More »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 …
Read More »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, …
Read More »LMT MRP QCB Gas Piston/Op-Rod Carbines and SBRs in 5.56mm and 6.8mm
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". January 22, 2009 While DefenseReview was at …
Read More »Colt Advanced Hybrid Carbine (AHC): Gas-Impingement/Gas Piston/Op-Rod Hybrid Weapon
By David Crane defrev at gmail dot com October 16, 2008 In our article on the Colt Sub-Compact Weapon a.k.a. Colt SCW, DefenseReview discussed the upgraded direct-gas-impingement (DGI)/gas piston/op-rod Hybrid Operating System that’s available as an option for it. Well, the Colt Advanced Hybrid Carbine a.k.a. Colt AHC select-fire carbine (5.56x45mm NATO (5.56mm NATO)/.223 Rem.) utilizes a dedicated hybrid DGI/piston …
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