Introduction: Modded U.M.P .45

hello everyone Im Knexpro15. Im kinda new to this site but I love to build with knex so made some stuff. This is not my idea but I thought it would be good to start of with so here are some stuff I added to the U.M.P.

Pin guide.
New kind of sight mount.
New sturdier handle.
New iron sights.
New stock design