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Also for no reason at all heres a slightly smaller in bounding box one
x = 49, y = 37, rule = B3/S23
4b2o8b2o$4bo2b6o2bo$5b2o6b2o25bo$2b3o10b3o20b3o$2bo2bobo4bobo2bo19bo$
3b2o4b2o4b2o20b2o$43b2o$43bo$9b2o30bobo$2o7b2o7b2o21b2o$bo16bo$bobo12b
obo$2b2o5bo6b2o$8b2o$8bobo3$47b2o$28b3o2b2o12bo ...

P920 gun i guess

Welcome to the forums!
It looks like you have rediscovered Period-184 glider gun with stable supports and combined it with a Quinti-Snark . If you look at guntrue_920 on Catagolue, it is very similar to your gun, but it uses a different sparker to achieve a smaller bounding ...

P920 gun i guess
x = 53, y = 42, rule = B3/S23
3b2o10b2o$2bo2bo8bo2bo$2b3o2b6o2b3o$5b2o6b2o$4bo10bo$4b2obo4bob2o$9b2o
$44bo$42b3o$9b2o30bo$2o7b2o7b2o21b2o$bo16bo28b2o$bobo12bobo28bo$2b2o5b
o6b2o27bobo$8b2o35b2o$8bobo$29b2o$30bo$27bobo$26bo$26b2o2$51b2o$8bo23b
3o2b2o12bo$7bobo22b3o2b2o10bobo ...