Foxtrot Mike - bullpup lower with DI upper; barrel has integrated 45 degree gas block and barrel extension, has larger bolt head, integrated feed ramp, flat on top instead of a barrel pin, integrated keymo; gas tube has fuel injection fitting machined into it; 9" to 18" free floated barrel; weird pivot transfer bar
TiON Inc Dragoon .50 silencer - 21 oz, full Ti, everything below .50 bmg, user serviceable, proprietary QD system, tube is machined from a single piece of titanium, clipped omega style baffles, $2400 (probably because they mill a whole block of titanium for some reason)
SureFire XR1 & XR2 Pistol Lights, new buttons - just shorter than the G19 muzzle 800 lumens/15000 candela, cartridge QD battery. ambi, momentary or constant on, xr2 has top mounted laser also, finally shipping (allegedly), MSRP $449 for XR1, XR2 Red ~$600.
CSP and CSM rail light buttons, dome style switch, longer throw for more defined momentary vs constant.
Spohr revolvers making it to the US - I'm not a revolver guy but these seemed noteworthy. 27 revolver gunsmiths got together to create it, no MIM parts, easy change cylinder, adjustable trigger mechanism, transfer bar, polygonal barrel, pic rail on barrel, $4100 (?) and up
Rugged Surge X - modular size, 5.6" or 8.1", lighter and HUB compatible, up to 300RUM, stainless + cobalt 6/stellite, ~$1100 MSRP, comes with Rugged mount and M3 muzzle device