Here is a great gun magazine for Mossberg 640 K guns. This is a 5rd .17 H.M.R./.22 W.M.R gun mag that will give you years of reliable service. Gunclip Depot has the largest selection of gun magazines and gun clips. If you do not see the gun magazine you are looking for send us an email and we will try to locate it for you. Buy your gun magazines and gun clips at gunclip depot.
Note: This magazine does not fit the Chuckster Model guns