yep. it's a PG-1. the body is aluminum, and takes VM feednecks and barrels, but the guts are very similar to spyder. the grip frame is unique in that it has the ASA built in. O-ring between the frame and body to let air get up to the valve i've got 4 of them (ex-rentals) that i'm in process of cleaning up to sell. they seem to shoot reasonably well.
and yes, they're heavy compared to a non-MR spyder but compared to a VM?