Calguns.net  

Home My iTrader Join the NRA Donate to CGSSA Sponsors CGN Google Search
CA Semiauto Ban(AW)ID Flowchart CA Handgun Ban ID Flowchart CA Shotgun Ban ID Flowchart
Go Back   Calguns.net > FIREARMS DISCUSSIONS > California handguns
Register FAQ Members List Calendar Mark Forums Read

California handguns Discuss your favorite California handgun technical and related questions here.

Reply
 
Thread Tools Display Modes
  #1  
Old 12-20-2008, 12:44 PM
jojo760 jojo760 is offline
Member
 
Join Date: Oct 2004
Location: Riverside
Posts: 116
iTrader: 1 / 100%
Default HK USP question

Years ago, I bought an HK USP 40. When using that handgun, if I slammed in the magazine hard enough, the gun would bring the slide forward and chamber the first round. I believe this is where the universal self loading pistol name was born. I sold that gun about 5 years ago and today picked up my second HK USP, this time a 45 cal. When I slam in the mag this time, with a snap cap, nothing happens with the slide. The safety and decocker behave the way I remember. The main difference with this one, is there is some kind of key that comes with the gun for some internal lock that wasn't on previous models. Is the something wrong with my handgun, or did HK change the design?
Reply With Quote
  #2  
Old 12-20-2008, 4:42 PM
Sniper3142's Avatar
Sniper3142 Sniper3142 is offline
Veteran Member
 
Join Date: May 2004
Location: Tustin, CA
Posts: 2,524
iTrader: 0 / 0%
Default

Nothing major has changed in the design.

It is a feature that HK really doesn't advertise and it work more on some HK pistols than others.

Some of mine do it while others don't.

They all still shoot and function great.
__________________
Internet Talk is Cheap

Man Up, Show Up, or Shut the @#$! Up.
Reply With Quote
  #3  
Old 12-20-2008, 4:50 PM
HKROB's Avatar
HKROB HKROB is offline
Senior Member
 
Join Date: Nov 2006
Location: Baldwin Park
Posts: 753
iTrader: 69 / 100%
Default

Both of my USPs do it 9mm & 45 auto.
Reply With Quote
  #4  
Old 12-20-2008, 5:52 PM
bandogg's Avatar
bandogg bandogg is offline
Senior Member
 
Join Date: Sep 2008
Location: San Diego,CA
Posts: 534
iTrader: 11 / 92%
Default

IIRC H&K did change the angle on the slide lock. So it doesn't close automatically . Like in 95-96
Reply With Quote
  #5  
Old 12-20-2008, 6:05 PM
bandogg's Avatar
bandogg bandogg is offline
Senior Member
 
Join Date: Sep 2008
Location: San Diego,CA
Posts: 534
iTrader: 11 / 92%
Default

Quote:
Originally Posted by Big Bore View Post
This is what I have in my trivia folder:
Here are some of the dates

USP
1993 Original USP9 and .40

1994 Reduced the slide weight by 1.1 oz.
Reason: improve reliability with training rounds and make gun easier to carry.

1994-95 Change to a polygonal barrel
Reason: Glock

1994-95 Change trigger transfer bar
Reason: Improve reliability in cold weather and dirty environments

1994-95 Change recoil guide rod to a "captured spring version"
Reason: Glock

1995 Change trigger mechanism.
Reason: Improve drop protection, reduce manufacturing costs, eliminate hammer over travel

1995-96 Add rubber spur to hammer
Reason: Required to pass some institution's drop test.
?? on date-change size of magazine release to current smaller button.
Reason: to prevent inadvertent mag releases?

1995-96 Change angle on slide lock
Reason: customers don't want slide to close automatically when a mag is inserted

2000 Add locking feature to hammer strut support:
Reason: attempt to pacify safety Nazis

2001 Converted captive recoil spring retainer from c-clip to
Machined end on Compacts.
Reason? C-clip prone to breakage on the Compacts.

Got that from HK pro
Reply With Quote
  #6  
Old 12-20-2008, 9:28 PM
jojo760 jojo760 is offline
Member
 
Join Date: Oct 2004
Location: Riverside
Posts: 116
iTrader: 1 / 100%
Default

Alright, thanks for your help.
Reply With Quote
  #7  
Old 12-20-2008, 9:53 PM
Maddog5150's Avatar
Maddog5150 Maddog5150 is offline
I need a LIFE!!
 
Join Date: Feb 2006
Posts: 10,534
iTrader: 48 / 100%
Default

I believe it actually states in the owners manual now that if it does that, the pistol is malfunctioning.
Reply With Quote
  #8  
Old 12-21-2008, 9:59 AM
Artery's Avatar
Artery Artery is offline
Member
 
Join Date: Oct 2008
Posts: 281
iTrader: 2 / 100%
Default

I always thought the "universal" part had more to do with the idea that the USP platform can be used for anything, ie concealed carry, military use, LEO use, target use, etc etc. As far as "self loading" I take that to mean the same thing as "auto loading" (semi automatic).

FWIW I think getting the slide to release when the mag is inserted has alot to do with the angle you 'whack' the floorplate at, but if HK designed it not to do that, then its probally near impossible.
__________________
Long time Garand shooter, recent AR convert
Fast is fine, accuracy is final. You got to learn to shoot slow, real fast...

WTB: Sig (or MGW) Sight pusher
Reply With Quote
Reply

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

Forum Jump



All times are GMT -8. The time now is 7:37 PM.




Powered by vBulletin® Version 3.8.9
Copyright ©2000 - 2018, vBulletin Solutions, Inc.
Proudly hosted by GeoVario the Premier 2A host.
Calguns.net, the 'Calguns' name and all associated variants and logos are ® Trademark and © Copyright 2002-2018, Calguns.net an Incorporated Company All Rights Reserved.
Calguns.net and The Calguns Foundation have no affiliation and are in no way related to each other.
All opinions, statements and remarks made by Calguns.net on this web site and elsewhere are solely attributable to Calguns.net.