can a standard P99 (or PPQ M1) 10 round .40 mag be modified? - WaltherForums

Go Back   WaltherForums > Walther Firearms > P99

LinkBack Thread Tools Display Modes
Old 01-08-2020, 06:13 PM   #1
Join Date: Jan 2009
Posts: 61
rodH .22
can a standard P99 (or PPQ M1) 10 round .40 mag be modified?

I have a few 12 round mags and a few 10 round mags. The other day I was playing with one of my 10 round AR mags and sure enough there is a cheep piece of plastic that was glued in there to make it so you can't fit more rounds in. I barely touched it and it popped right off and now it holds 30. In other words the AR mag that I had (manuf by one of the major companies) just "rigged" a 30 rounder to be a 10 rounder.

Is there a similar situation with the P99? All the mags I have look exactly the same but they are either 12 or 10 (I even think they came in 14 rounds for .40, but I don't have any). Is there a simple modification for this?
rodH is offline   Reply With Quote
Old 01-08-2020, 09:17 PM   #2
Senior Member
PPS1980's Avatar
Join Date: Jul 2016
Location: The Free State of Georgia
Posts: 2,817
PPS1980 .22
As I recall the 10 rounders have a different follower in them that is taller. If you have each then open them up and compare the followers side-by-side.
I prefer dangerous freedom over peaceful slavery.
- Thomas Jefferson, letter to James Madison, January 30, 1787
Now more than Ever:
Quis custodiet ipsos custodes?
PPS1980 is offline   Reply With Quote
Old 01-09-2020, 06:48 AM   #3
Senior Member
Join Date: Sep 2006
Posts: 107
dleong Unproven
The plastic baseplate of the 10-round .40 mag is taller than the one on the 12-round mag, and the magazine tube correspondingly shorter. There is no way to modify the 10-rounder to fit 12 cartridges.
Attached Images
File Type: jpg P99_40_10_Rnd.jpg (256.3 KB, 7 views)
dleong is offline   Reply With Quote

Lower Navigation
Go Back   WaltherForums > Walther Firearms > P99

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2020, vBulletin Solutions, Inc.
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2020 DragonByte Technologies Ltd.