Airsoft Canada

Go Back   Airsoft Canada > Discussion > Doctor's Corner
Home Forums Register Gallery FAQ Calendar
Retailers Community News/Info International Retailers IRC Today's Posts

TM USP (Full Size) O-Ring Replacement


Doctor's Corner

Thread Tools
Old November 1st, 2019, 20:07   #1
Ourindar's Avatar
Join Date: Mar 2017
Location: Nova Scotia
TM USP (Full Size) O-Ring Replacement

Hey folks,

I bought a Tokyo Marui USP a while ago, and sadly the o-rings in the magazines seem to have gone (the mags leak gas visibly around the edges of the bottom).

I grabbed a set of replacements from Eagle6. They're a bit thicker than the stock ones (by design). I'm having a lot of difficulty installing them - I can replace the o-ring itself just fine, but putting the base back in the magazine is proving impossible. I just can't seem to get the pinholes at the bottom to line up right.

Has anyone done this or have any tips?
Ourindar is offline   Reply With Quote
Old November 1st, 2019, 20:25   #2
- Professional Complainer who wants to do nothing to help out. QQer maximus, will QQ for Free. Snowflake exemplified.
RainyEyes's Avatar
Join Date: Sep 2013
Location: Scarbororororough
Buy the o-ring kits from princess auto or crappy tire and save the hassle.

Most magazines use the same orings made by the same. I grabbed a kit and compared it with one of my pistol specific magazine orings like you did and I realized they're the same thing.

If it's too thick you can sand it down little by little.

800 grit sandpaper + a wooden stick or something larger in diameter than your o-ring and put it on a drill chuck and sand it down to desired thickness.

If you mess up just buy an o-ring kit and save money. Cad to GBP is horrible and last time I checked out with them they charged $30 for shipping on a small part.
I make replacement polycarbonate flashlight lenses! Send me a PM.

Last edited by RainyEyes; November 1st, 2019 at 21:26..
RainyEyes is online now   Reply With Quote
Old November 2nd, 2019, 11:58   #3
Join Date: Feb 2010
Location: Toronto
This shit was a pain in the fucking ass for me, needed vice grips to clamp down the base plate so I could hammer the pin down into the magazine.

I also used a piece of tile to use as a "strike plate" for my rubber mallet so it can transmit the force a little more appropriately.
DeltaSniper is offline   Reply With Quote

Go Back   Airsoft Canada > Discussion > Doctor's Corner


Thread Tools

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

Airsoft Canada

All times are GMT -4. The time now is 06:47.

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2020, vBulletin Solutions Inc.