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The LaRue Tactical Stealth Sniper System LT-011 is a complete drop-in upper that’s ready to swap out with your old one and begin precision shooting. After adding a scope with LaRue mount, of course. The Stealth is LaRue’s answer to the demands of the precision AR-Shooter, and was designed with ¾” 100-yard shot groups in mind. The Stealth has exceeded their expectations, and has earned a great reputation for its sub-MOA accuracy, with reports of consistent hits on 4″ plates out to 400 yards with 77 grain Mk262 ammunition. Complete Stealth Uppers come expertly-assembled and tested with Receiver, Free-float Handgaurd, Barrel, Low-Profile Gasblock and Tube, Mil-Contract M16 Bolt Carrier Group and Charging Handle.

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One of the gripes that people have had is that the MUR was not compatible with the LaRue anti-rotation device, due to the MUR’s non-standard outer profile at the front of the receiver. When I installed my LaRue handguard on a MUR, I had to cut off one side of the anti-rotation device. Many people modified their devices, or simply left them off altogether. Now, there’s no need to do so. Vltor decided to change the contour slightly so that the MUR would be compatible with all handguards, including the LaRue antio-rotation device. All MURs shipping from Vltor now have this update, so if you plan on using a LaRue handguard, either order direct from Vltor or make sure you specify to your Vltor dealer that you want the LaRue-compatible one.

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The new CASV-M from Vltor Weapons Systems is the midlength version of the CASV-EL shown above. The CASV-M is designed to be used with a midlength gas system with any front sight/gas block, or with a carbine (or shorter) gas system with low profile gas block. Until now, midlength gas system users could use the CASV-EL, but the sight tower cutout would leave the midlength gas tube semi-exposed. The MG covers the gas tube completely on a midlength system.

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The MCTAR-17 2-piece Carbine Forearm from Midwest Industries, Inc is a very reasonably priced option for the shooter who wants a rail system for his carbine, but doesn’t want to alter the host weapon, or require gunsmithing. It’s also M203 or shotgun compatible with the bottom rail removed.

The MCTAR-17 is made from the same size extrusion as the MCTAR-22 free float handguard reviewed above, and shares the same cross-section: outside measurement across rails was about 2.45″ – same height and width. The other features are also shared – crisp T-numbering on all four Picatinny rails and large holes for ventilation. The forearm has two pieces; the upper and lower half. At the front of the forearm are semi-circular rings which slip into the front handguard retaining cap. At the rear are rings which are grooved to fit around the barrel nut, and secured by the delta ring.

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Midlength VIS build – The reason I hadn’t gotten a VIS when they came out was that I was waiting for Vltor’s new gas block/flip up front sight assembly. My patience paid off, and Eric put this together for me. It’s a Wilson 1/8 16″ stainless barrel re-contoured with a continuous taper (to the gas block) per Eric’s specs. Ops-Inc shoulder and mid-length gas system. Illustrated below with a couple of different optics; a Trijicon TA01NSN and a Nightforce 2.5-10 x 24 NXS scope. It’s going to be set up as a ‘recce’ upper with the ACOG.

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PREVIEW – Vltor Weapons Systems will debut their new M4K upper at the 2007 SHOT show. It’s built on a Vltor VIS-1, carbine length Bi-lithic upper receiver. The M4K enables an M203 to be mounted on a shorter barrel than an M4, resulting in a more compact package when maneuverability and compactness is a priority. It accomplishes that with a modified M4 barrel, and proprietary flash hider. Also shown is the new Vltor gas block with integral front sight.

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This writeup has been a long time in coming, as the CASV-EL from Vltor Weapons Systems has been out a couple of years now. The original CASV was orignally offered by Abrams Airborne, and when Abrams acquired Vltor, Eric Kincel (general manager and head designer) re-designed the CASV specifically for the U.S. Navy. It was adopted by the U.S. Navy EOD (West Coast) in the tan version, and once that contrat was fulfilled, Vltor offered it to the public in 3 colours – tan (ELT), black (EL) and OD green (ELG).

The CASV-EL is made entirely of aluminum, with the exception of the mounting hardware, which is stainless steel. It’s basically designed for carbine-length gas systems like the M4 or M4 CQB 10.3″ barreled upper, and attaches to the top of the flat top receiver without alteration to the host weapon or gunsmithing needed. The barrel remains free-floated; the handguard does not touch any part of the barrel except at the barrel nut. The ‘EL’ refers to ‘ extended length – the CASV ‘extends’ the available rail space past the front sight tower. The CASV-EL weighs less than 16 oz.

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Production version update – All three versions (carbine, midlength and rifle) of the VIS are now in production and available. Very little has been changed from the pre-production prototype shown above. There have been minor changes to the lower handguard and a re-designed latch. Instead of a small hole for bullet tip, the latch is now bent over to allow anything that will fit in there to be used to pry it up. It’s tight, and designed that way, as the lower handguard isn’t meant to be removed and replaced all the time. Provisions for mounting an M203 has also been added, and a rear mount is supplied with each kit. When I wrote the preview above, I wasn’t able to disassemble the upper, so I’ve shown more photos of the un-barreled receiver below.

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