I drill some holes using my Dremmel on the weapon slot and then put some small magnets into the holes, I put some superglue on them after I'm satisfied with the result
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgy8HaNCrb1IsF0N_LVWBoi33-93KOldawQtBT86mIdn7BJWqYD7Qy01bJXBnFvWWAMUIOBH0OfMfrO70F26Z5cjyHkP1JHtY2PBlVyD5BVR4wl6-C_W-MyvtwokIpak6dxHb2cZ02SxnE/s400/26022010600-1.jpg)
I glue some flat magnets on the weapon attachment
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhdTD80yW8asp4iua1jYD1Gv8LNCiZF8dkZ5BAXj4BQ8ZObjqxsGApeeT9sP4JGkYJObprlohY0_Ju23_WAOwMnrSbrksWZOt-WmfbW0MOFoLiobCnFFKVt9nx8l96f1isSfIYOgSNKHnU/s400/26022010601-1.jpg)
And this is the final result, if you change your mind you can build another weapon option just buying some bits (check http://www.bitsandkits.co.uk/)
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg-zg5-ePGZAWwpF6AwP_ycz9cK10GasdO9iDkFigE_znErdv_jXACYwSn02dlpVZXdETsZ3OGwIRcd88c3RCac9l_N7AAahk_fjjlMcvxt8a84uWvwoxzJu6w-aZf3WzROzBa1ooQY5LM/s400/26022010603-1.jpg)