Sandra, This G34 is a Gen 5 model. Sights: Glock Adjustable Sights there are adjustable for wind and elevation. Does come with MOS adapter kit. 3-17 round magazines. Extra interchangeable backstraps are black. Here is what comes with this Gen 5 G34 -----------Mag speed loader,
Glock pistol case with lock,
Backstrap set G34 black,
3x 17rd mag,
Nylon bore brush,
Cleaning rod,
MOS adapter kit

Sandra, this a Gen5 G34. This MOS pistol comes in a hard plastic case, owners manual, warranty registration card (3) 17rd Magazines, cable lock, plastic speed loader, bore brush and Four interchangeable palmswell grip inserts for optimal hand fit and trigger reach: S, M, ML, L. It also has 4 Optics plates. Unboxing video here : youtube.com/watch?v=9LcjP8OYTfs