Purchased my first GLOCK last week. It's a model 27 in 40 caliber, Gen 4, on consignment at a LGS. An LEO's backup piece, they tell me. Doesn't look like it was shot much. Came with 3 mags plus all the various back straps. I've never had a 40 S&W pistol, but have shot a buddie's 27 a few times. Looking forward to trying it out.