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 …

By Mike Pannone June 15, 2009 In the early months of 2006 while I was helping to write and refine the curriculum of the Asymmetric Warfare Group’s Combat Applications Training Course (CATC) I took it upon myself to research performance enhancements and reliability upgrades as an integral part of educating the soldier on how to maximize his M4/M4A1 carbine. The …

By David Crane defrev (at) gmail (dot) com May 20, 2009 According to Army Times magazine, The 75th Ranger Regiment is scheduled to battle test the Special Operations Combat Assault Rifle (SCAR) very soon. The Rangers will reportedly be taking 600 FN SCAR rifle/carbine/subcarbine/SBR (Short-Barreled Rifle) weapons packages into battle, but DefenseReview doesn’t know how many of these are the …

By Michael Pannone This article is the follow-up to the author’s first article on the subject, titled "M4/M4A1 Carbine Reliability Issues: Why They Occur, and Why They’re Our Fault!". March 15, 2009 If your Explorer gets a flat does that mean "Fords are unreliable"? If you put bad fuel in your Tundra does that mean "Toyotas run crappy"? Stay with …

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 …

DefRev is going ahead and publishing the following letter, which was submitted by an anonymous visitor of our site, due to the fact that it looks legitimate and involves a matter of weapon reliablility/user safety. However, in the future, DefRev will only publish this kind of submission… if it is performed using a valid DefenseReview.com username. In other words, after …

By David Crane defrev (at) gmail (dot) com All photo and video content contained in this article was shot by DefenseReview.com, and is copyrighted, except for the photo of the Boberg XR9-L Onyx model (all Black). DefenseReview.com owns the copyright on all photo and video content, except for that one photo (courtesy of Boberg Arms). All DR photos and videos …

By David Crane defrev (at) gmail.com Photo(s) Credit: "esskay" (from Calguns.net) and Norgon, LLC September 29, 2011 In my tactical AR (AR-15 carbine) Frankengun/Frankencarbine article (February, 2010), I mentioned the Norgon Ambi-Catch (NSN 1005-01-537-6498), which is a pretty cool drop-in ambi mag-release/catch button/lever (ambidextrous magazine release button/lever) for tactical ARs (AR15/M16/M4/M4A1-type weapons). Well, as it turns out, DefenseReview (DR) writer/contributor …

By David Crane defrev (at) gmail (dot) com September 6, 2011 All photos from SHOT Show 2011 in this article were shot by DefenseReview.com (DR), and are copyrighted. DefenseReview.com owns the copyright on these photos. The photos and video clips were shot with a Canon PowerShot S90 10-megapixel digital camera (still camera with video capability). The rest of the photos …

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 …