Engine 18, I carry an M&P 45c without external safety it weighs the same as a 4" 19 and it is the same size as a Glock 19. It carries 8 rounds of 45 in the mag and one in the pipe.

Best feeling, handling compact 45 I've shot in many years. Hate Glocks as they feel unnatural and are UGLY.

From a dedicated revo guy check out the M&P.