H&K 15 Round HK VP9A1 K Magazine. Made from premium stainless steel and equipped with a red, anti-tilt polymer follower for easy identification, these 15-round magazines offer exceptional strength and dependability. The numbered witness holes on the back make it easy to verify round count at a glance. With a more compact design compared to the previous VP9 model’s magazine and featuring a recessed baseplate, this VP9A1 K magazine covers all the essentials. Whether for everyday carry or home defense, it’s the ideal choice for your VP9A1 K pistol. Compatible With: HK VP9A1 K. NOT compatible with the standard VP9/P30. NOT compatible with VP9A1 F.