Glock 29 Gen4 10mm 3.78 Inch Barrel Black Finish Fixed Sights 10 Round. Superior versatility in the high-performance caliber 10mm, through reduced dimensions compared with the standard size Glock 20, the sub-compact Glock 29 is also suitable for concealed carry. Features fixed sights, interchangeable backstrap, revisable magazine catch and Dual recoil spring. Safe Action trigger system with three safeties. Right hand, hexagonal barrel rifling. Tenifer surface treatment process for barrel and slide.