Jinming M4A1 Gen 9 Gel Blaster Barrel Interface to suit 16mm Aluminium Tube

thingiverse

Was looking for an inexpensive alternative to the metal outer barrels available on line for the Jinming Gen 9, something that can be made to a custom length to suit inner barrel and accessories. This suits 16mm OD aluminium tube (16mm x 1mm - avail at Bunnings if you are in AUS) and a 9.5mm inner barrel - very tight fit and you will need to sand the aluminium tube. Made especially tight so the connection doesn't require glue and remains robust. If you are intending this for a floating handguard it should be strong enough... I chose to print in PETG for durability, I think ABS will also be fine but PLA is probably too brittle. Prints in 2 parts, glue for final product. I printed solid and HOT to ensure strong part I will also upload the associated gas block in the last pic.