Magazine bumper/extender for Model 41

[whodives]

I would love to get my hands on a magazine bumper that added (one) .22 round to the ten stack magazine for the Model 41. I use mine in NSSF competition and we are allowed to chamber 11 rounds in each of runs at the setup. Being able to "bump" the magazine and be sure it is home would be good, and that 11th round has come in handy at times. Someone is making an after market clip bumper/extender for the Ruger Mark II and IIIs, but I cannot find any for the 41.

 

[nyeguy]

12 round for 41/46

You know a 12 round mag was made at one point for the 41/46.
It has an orange follower. I have several I use with my 46.