Tag Archives: m4 carbine

Grauer Systems Integrated Grip Rail System (IGRS) Extended Ramped and Flared Magwell / Vertical Foregrip

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). April 15, 2010 A company called Grauer Systems showed an interesting AR-15 rifle/carbine accessory called …

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The Big M4 Myth: ‘Fouling caused by the direct impingement gas system makes the M4/M4A1 Carbine unreliable.’

By Mike Pannone Info@CTT-Solutions.com All photos contained in this article were taken by Mike Pannone for DefenseReview.com, and are copyrighted. Mike Pannone and DefenseReview.com own the copyright on these photos. March 19, 2010 Here’s my question for those that subscribe to the direct impingement fouling concept: I fired 2400 rounds of M193 through a 14.5” M4-type upper receiver from Bravo …

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Colt Defense Launches Colt Tactical Carbines/Rifles for Civilian Tactical Shooters at SHOT Show 2010: Tactical Guns Accessorized for Intensive Tactical Training

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 2, 2010 Colt Defense just introduced its new Colt Tactical line of semi-auto-only tactical …

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Colt M4 Carbine’s Future Uncertain: Dark Clouds Forming

By David Crane defrev at gmail dot com Perhaps the single most exciting thing that happened at NDIA International Infantry & Joint Services Small Arms Systems Symposium 2008–away from the firing range, of course–was a confrontation between Jim Battaglini (Retired Marine Corps Maj. Gen. James R. Battaglini) of Colt Defense and U.S. Air Force Col. Robert Mattes, the director of …

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M16 Rifle and M4 Carbine: Time For a Change

By Charlie Cutshaw For those of you who may have been on another planet for the past three or four years, our troops in Iraq and Afghanistan are having serious reliability issues with the M16 rifle and M4 Carbine, especially the latter. The basic problems with the M16 and M4 are nothing new. M16 reliability issues date to the mid-1960s …

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SIG 556 SWAT Gas-Piston-Driven Tactical Rifle/Carbine/Subcarbine

by David Crane defrev at gmail dot com All photographic images contained in this article were taken by DefenseReview.com, and they are the exclusive property of DefenseReview.com. DefenseReview.com owns the copyright on these photos. All photos were shot with a 7.2-megapixel Sony Cyber-shot digital camera (Model #: DSC-P150). December 27, 2007 The February 2008 issue of Guns & Weapons for …

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MGI Hydra QCB Modular/Multi-Caliber AR Weapons System for SPECOPS

by David Crane david@defensereview.com Back in February (2006), DefenseReview briefly discussed the new and improved MGI QCB (Quick Change Barrel) Upper Receiver system and MGI D-Fender "D-Ring" in our article titled DefRev Quick Hits 3 from SHOT Show 2006: And the Hits Keep Comin’. We got to handle and examine both of these items, as well as MGI’s Modular Lower …

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