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Christmas Forever - HK P30 plus 2 magazine extension and mantis magazine mount

Jack Brush 2.5MiB Released October 14, 2025, 1:26 PM 0.010LBC 0 Reposts
Christmas Forever presents, someone else's file that I had to fix.

This thing was a file on thingiverse where the original creator seemed to have a different idea of tolerance. I reworked the file to have looser tolerances as well as changed the geometry to not have to slam the magazine in the gun because the front lips we're way too high.
It could still use some changes but I'm moving away from HK in general because they hate the civilian arm marketplace. Don't give your money to people who hate you. HK hasn't made anything worth a crap in 30 years anyway.
Hot chicks in bikinis belong in gun ads.


README
print with the rails mostly perpendicular to the bed with supports
if you print this with the bottom of the mag base on the bed the droopage will make the tolerance too tight to put on without a mallet. Taking it off will be worse, which is the main issue.
reuse the original spring, locking plate, and follower.

PLA+ is the baseline to print with

disassembly will need a tool longer than the baseplate. I used a m4x40mm bolt mainly, anything long should work though.

Mantis mag base should be printed the same way, you will need to clean supports off the pic rails.

guncadindex tags:
9x19mm
magazine
extension
hk p30
mantis-x


LBRY Tags: 9x19; magazine; hkp30; extension; mantisx