APS has recently released the Guardian M4 not too long ago, and I personally adore the look of the gun.
http://www.evike.com/product_info.php?products_id=41216
However, the APS I remember always had terrible gearboxes, and were not exactly a brand to trust. Apparently their new HYBRiD gearbox solved all the old APS issues, and many rave about how well it is constructed and performs.
I've been wanting to sell my SRC Gen2 and replace it with something a bit more reliable that also has a blowback function. Is the new HYBRiD APS gearbox almost too good to be true?
And, if it matters, I'd be using an M100 spring at max.