Sith's lightsaber from the acolyte

has a locking system so the top and the bottom can connect

https://www.amazon.com/Dianrui-Compression-Assortment-Mechanical-K-P-051-300/dp/B0BVTDP29W/ref=sr_1_5?crid=1C7ZANGXNRC1P&dib=eyJ2IjoiMSJ9.NitG_JtkJD5hnANQBHm074dg1A7b4S8O5_jGJMX-0DYNgCxw5O0SWtqNDSJXMRLSQ080JTJMp_iVWOzxRkv8PNN92UTljZ83z3ua5RvMnzawNsi1WL5hscZKZy1R1PQBP1nC-VNgegcE4OJJvau7XQe_DChjmkBteDETafdbTg4apUEqJRmFBSqXoNDlxG-7erTH0FjuRksIABench7rBmqGmFAVAkN4toaSHUu542F_5zR1BMwviiCCxUZ7J1xKEkPH9BAktaJjrh0ZVsbS2G4nZSAWRa8CtEL4OY8N0aM.RiSEZzxEOXwrlfDvhThnrTSI0pkeujzpnQkbzM42s48&dib_tag=se&keywords=spring&qid=1726105169&sprefix=spri%2Caps%2C199&sr=8-5&th=1

I suggest buying this from Amazon to be able to keep the middle 2 in place when it is inside middle 1. You can choose which spring you like best and you can also cut it with pliers or smth sharp