VLTOR VC-1 AR15 Flash Hider M4 AR-15 Compensator Model 1 Comp
The VC-1 is a hybrid muzzle device (flash hider and compensator similar to the PWS FSC556). The VC-1 takes an opposite approach from the FSC556 with regard to function though. The VC-1 is a flash hider first with some compensating properties, while the FSC556 is a compensator first with some nominal flash-hiding properties (it has been classed by the ATF as a non-flash suppressing device). Because of this, while both are excellent devices and perform both duties well, the FSC556 is more "blasty" in comparison.
All VLTOR VC-1 "Model 1" Compensators have an outer diameter of 22mm (NATO Spec.). All Compensators come with Crush or Peel-Away Washers. Like all Vltor products, we recommend the installation to be performed by a qualified gunsmith and/or experienced armorer.
Cal. 5.56, Muzzle Thread: 1/2-28
Made specifically for Gemtech HALO Suppressor. When mounted to a 14.5-inch barrel, overall length extends 16-inches.
Utilizes any standard peel washer or crush washer (peel washer supplied). There is no need to index the comp, unless you want the Vltor logo at the top, as shown. The flats on either side are sized for the USGI combination tool - an adjustable wrench will not work for installation. Machined from steel, heat treated and manganese phosphated. It's 2.1" long, and will bring a 14.5" barrel to legal 16" length when permanently installed.
Compatible with all suppressors that attach to the standard GI comp/flash hider, and most blank firing devices. Provides a controlled interface for suppressors like the HALO to engage, which key off the rear of the comp. When suppressors like the HALO are installed on GI hiders that have crush washers, the crush washers do not provide a square/aligned interface, and can cause the suppressor to angle off when tighened, ever so slightly. This comp prevents that from happening, and ensures that hider-mounted suppressors are aligned with the bore.
Utilizes an internal vortex design, instead of an external one. It actually has ten slots. It doesn't ring out like a tuning fork as loudly as the Vortex when hit, as it has a closed-prong design. Vltor said that the flash suppression is decent - on par with a Phantom, maybe not as effective as a Vortex as you can still see a flash.