Glock 19x MOS (optic cut) 9mm 17/19+1rds 4.02" barrel in excellent condition w/ case and additional magazines. Gock's first-ever "Crossover" pistol, the Glock 19x, combines the best features of two of its most popular and most trusted field-tested platforms. The full-size Glock 17 frame and the compact Glock 19 slide have joined forces to produce the ideal pistol for all conditions and all situations.