Why M4's have reliability issues…and why it's our fault! By Michael Pannone December 24, 2008 I fired 15,000 rounds through a semi-automatic M4/M4A1-type direct-gas-impingement (DGI) carbine in 31 weeks without a single malfunction attributable to anything except bad ammunition or bad magazines, with a grand total of 9 malfunctions. The least number of rounds fired between cleanings was 960 rounds, …

By David Crane defrev at gmail dot com December 17, 2008 DefenseReview has been using TangoDown "Rail Grip" polymer rail covers (a.k.a. rail panels), "BattleGrip" vertical foregrips and "Rifle Grip" pistol grips (for rifles) on tactical AR-15 carbines and subcarbine/SBRs (Short Barreled Rifles) for quite awhile, now. These products have always performed well, and we’ve been satisfied with them. TangoDown’s …

By David Crane defrev at gmail dot com December 15, 2008 One of our readers, Justin Guyett, has brought a potentially important tactical hardware conflict to DefenseReview’s attention after reading our photo analysis of a 5-man U.S. Secret Service PPD CAT team in a "war wagon" SUV while they were protecting President-Elect Barack Obama in downtown Chicago. In that piece, …

By David Crane defrev at gmail dot com December 8, 2008 If executive protection/PSD ops are your game, Torrey Pines Logic, Inc. (TPL) may be the name when it comes to sniper detection systems a.k.a. anti-sniper systems, video surveillance detection, and photographic surveillance detection. First up is the TPL Mirage-1200 handheld electro-optical detector (optic detector), which is designed to detect …

By David Crane defrev at gmail dot com November 24, 2008 Updated on May 6, 2009 Ever since he won the presidential election, the press has been following President-Elect Barack Obama around Chicago like a bunch of hungry (and annoying) puppies. Whether he’s going to his transition office in the Kluczynski Federal Building in the Loop (dowtown Chicago professional district, …

By David Crane defrev at gmail dot com November 19, 2008 Human Events is reporting on the use of Chinese armor-piercing a.k.a. armor-penetrating (AP) bullets by enemy snipers in Afghanistan and Iraq. According to the article, this new Chinese AP rifle ammo is copycatting U.S.-made AP ammo design, and is "sending alarm bells through the Pentagon as it hurries to …

By David Crane defrev at gmail dot com November 4, 2008 So far, DefenseReview has covered the Colt SCW (Sub-Compact Weapon), Colt APC (Advanced Piston Carbine) and Colt AHC (Advanced Hybrid Carbine), but those aren’t the only newly-developed weapons in Colt Defense’s bag of tricks. If you’re interested in an upgraded/modernized version of the standard, direct-gas-impingement (DGI) Colt M4A1 Carbine, …

By David Crane defrev at gmail dot com October 24, 2008 DefenseReview recently mentioned Singapore Technologies Kinetics a.k.a. ST Kinetics in our article on the GDATP IAR/Ultimax 100 Mark V (Ultimax 100 MK5) LMG/SAW is offering an interesting and pretty slick-looking little lightweight, multi-calber submachine gun (SMG)/personal defense weapon (PDW) called the Compact Personal Weapon (CPW) for CQB/CQC applications and …

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 …

By David Crane defrev at gmail dot com October 9, 2008 On August 22, 2008, the U.S. Army issued a sources sought notice for an "Improved Carbine and Subcompact Individual Weapon System" (Solicitation #: W52H0908CARBINESV) to replace the Colt M4 Carbine, since Colt Defense’s M4 Carbine sole source contract will end in 2009. On September 11, 2008, I got a …