The Raptor does sound pretty interesting. One question I have is do you think it will feed ok from a staggered BDL style mag box? On their website I see mention of center feed detachable mags but cant find any information on feeding from a staggered BDL style magazine set up.
Missed the BDL part... yes... it should feed fine... my 358Ws feed perfect (I built two)... never had a problem.
The Raptor shines because of the powder... 10x is really odd... but it shines with the Raptor.
FYI... there is some "Hot weather sensitive" cautions.