Brand new Glock OEM & SGM Magazines 40. Cal S&W, one 10/10 and one 10/33

Selling 2 brand new glock magazines in .40 cal S&W, 1 OEM glock and 1 SGM extended magazines. 

Both cycle perfectly with snap caps but never fired before. I have also heard rumors you can fit extra rounds of 9mm in these magazines as they are the same dimensions, but YMMV. 

Selling as I have too many of these in my collection. Asking 40 for the small OEM mag, and 50 for the SGM extended mag. Shipping on buyer. Thanks !