This just in: The Shrike 5.56 LMG(Light Machine Gun) upper, by ARES Defense Systems, LLC, is in production and currently available for pre-order(both in select-fire and semi-auto-only configurations), and the ARES Defense Systems site is up and running. If you remember, DefRev reported on the Shrike 5.56 and ARES Defense Systems some time ago. If it works as advertised, the …

The MK46 Mod 0 and M249 SPW(Special Purpose Weapon) LMG’s are basically modified, shortened, and lightened M249 SAW’s(5.56x45mm) that have been developed specifically for use by U.S. Special Operations. On both, the M249’s forearm has been replaced with a rail system, although the SPW’s and MK46’s rails are of different configuration. Also, their buttstocks differ from each other in that …