Air Arms S410 magazine - .22

thingiverse

Complete replacement/spare 10 shot magazine for the Air Arms S410. I'm thrilled to announce that I've finally completed it, and the version 2 mag housing and mag cover with the V1 mag barrel are a complete success! They work just as well as the original, and I couldn't be happier. UPDATE: After testing these magazines for a while now, all seems good. They're working just as well as the original with no problems. Mag Barrel: Printed in Hobbyking ABS with a 0.2mm nozzle at 0.1mm layer height, 20mm/s extrusion, and 230°C temperature, along with a bed temperature of 100°C using ABS slurry. It will work with a 0.4mm nozzle but I found the 0.2mm nozzle gave far superior results, minimal post-processing, and greater dimensional accuracy. Print with supports for the cutouts, PLA can be printed in current orientation but I found flipping it 180 degrees for ABS gave better cutouts for the O-ring. Mag Housing: Printed in VANGogh ABS, 0.4mm nozzle, 0.2mm layer height, 240°C temperature, and 100°C bed. Must be printed with supports in supplied orientation; highly recommend using support roof with at least three layers to give best results. For ABS increase all axes by 1%, PLA print at standard size. Mag Cover: Printed in VANGogh ABS, 0.4mm nozzle, 0.2mm layer height, 240°C temperature, and 100°C bed. No supports necessary; print in supplied orientation. For ABS, increase all axes by 1%; for PLA, print as is. Post-Processing and Build: Clean up all parts as necessary with a fine file or sandpaper. Ensure all pellet holes in mag barrel are clear of protrusions; a .22 pellet should drop straight through the hole but equally shouldn't be too baggy if you've got it right. Fit barrel to mag housing, check rotation; it should spin with very slight friction and no snagging (I found mine were catching slightly on lower R/H opening of mag housing but a couple of file strokes were all that was needed). Fit cover to housing, test fit to rifle; you will need to file/sand the rear of the mag housing until you get a nice "snug" fit (an unfortunate side effect of having to use supports for this job). Once you're happy with the fit and have tested to ensure the mag cycles correctly, remove the mag barrel, fit an O-ring (I'm using the original AA mag O-rings pt/no: S556; they cost me £3 for 10 off eBay). Refit barrel into the mag housing, rotate the mag barrel so a detent lines up with the spring retainer. Drop a 4mm steel BB into the spring retainer. I found the correct size springs hard to find so I bought a 20mm long, 4mm O/D, 0.5mm carbon steel wire spring and cut it down into 6mm lengths (to be honest, I could get away with shortening the spring a bit as mine is producing a bit too much force). Other springs will work but you'll need to experiment; when fitted, the mag should not take too much effort to index. Refit the mag housing cover and secure with a short countersunk head self-tapping screw (the hole is 3mm so it's your choice of screw); ensure the screw head is completely flush or below the surface of the mag housing cover or you'll do some damage to your rifle! If you make one, please click the "made one" button and upload your results; I'd love to see how others turn out. I'm thinking of printing some red or fluorescent ones for using at the range so it's easy to see a mag is fitted; I'm also going to try printing a mag barrel in glow-in-the-dark ABS to see if it's possible to determine shots left without using a torch... may even try a wood fill casing! And if you come across any issues, please let me know and I'll do my best to help out. Enjoy!