The 1911 Syndicate try the HK MR556 A4 rifle which they say is one of the most exciting releases in years in the civilian firearms market... "The HK MR556 is one of Heckler & Koch's most slept on guns.  For those wanting an HK 416, the reality is, an MR556 A1 conversion process was the closest thing we could get in the civilian market.  But HK has now released the MR556 A4, and we rejoice.  The MR556 A4 is, essentially, a 416 A5.  It has an adjustable gas block, fully ambidextrous lower receiver, redesigned MLOK hand guard, all new furniture, and several other enhancements over the MR556 A1.  On a personal level, this is the most exciting rifle release in years."