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M16 Viper Series: Custom 5.56mm Weapons Packages for Special Ops (Video!)

by David Crane [email protected] DefenseReview first reported on the M16 Clinic AR-15/M16/M4/M4A1-platform 5.56x45mm subcarbine/SBR (Short-Barreled Rifle) weapons packages back in December, 2004. That first article discussed the select-fire/full-auto,  SOPMOD M4 CQBR (Close Quarters Battle Receiver)-style M16 Viper and M16 Viper-XRP (eXtra-Range/Perimeter) 5.56mm subcarbines/SBRs, which are built specifically for military Special Operations applications, including anti-terrorism/counterterrorism operations. These weapons would appear to ... Read More »