This is a Glock 21 gen 4 so will come with 3-13 round magazines. All 4 and 5 gens come with 3 mags and first threw third gen come with 2 mags. This comes with a 4.6 inch match grade barrel, Glocks standard fixed sights, and interchangeable backstraps. Hope this helps.

William, (3) 13rd Magazines, magazine loader tool, a hard plastic case, owners manual, warranty registration card, cable lock, bore brush and Two interchangeable palmswell grip inserts for optimal hand fit and trigger reach:

What’s in the Box
Glock 21 (Gen4) Pistol
(3) 10-Round Magazines
(2) Interchangeable Back Straps
Speed Loader
Pistol Cleaning Set
Back Strap Disassembly Tool (MBS)
Cable Lock
Hard Shell Case
Owner’s Instruction Manual