This looks good for Mossberg. 11 rnd flush fit and 14 rnd extended mag in Glock design/function polymer frame that also takes MC2C mags so 15 rounders already available. It is optics ready which the MC2C and MC1 have not been so maybe that means the others will follow. All the usual features of metal sights, front and rear cocking serrations, flat trigger, extractor that doubles as loaded chamber indicator. Metal drop free mags and no trigger pull to dis-assemble. A couple less parts than a Glock but same basic functioning and easier to clean striker and striker channel. US made. It seems similar to the 365XL but slightly smaller so in between the XL and regular 365. No word of what the optic is cut for or plates system if any.
I hope H&K does double stack/stack and half when they come out with theirs unlike the missed opportunity CZ and Beretta made.