Info needed on L85A1 for DITS

#1
Hi guys, I am doing my DITS theory at the weekend on the differences between the L85A1 and L85A2. Found many different faults but does anyone have any experience on 2 that I have found. First one was to do with the mag housings, apparently they were thin walled and could be dented easily to the point where a mag couldn't be loaded?

Second was that the gas plug could jam in the block and would need an armourer to remove. Can anyone confirm that these were true and what was subsequently done to prevent them happening?
 
#2
The original issue way back in 87 . We had to hand them back in as the magazine release catch never had a cover around it . Guys were losing full mags doing roping drills getting in and out of craft losing them in the oggin . I was in training at the time never witnessed any of this but remember our weapons being withdrawn for a short period for mods . Hope that helps . You could use this as your teaching question then lead into what mods have come in since . I'm sure there are guys on here who can verify my story as all teeth arms got issued them around the same time in 87 . Good luck .


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#3
The mags were certainly a problem. The sides would dent easily but I found the biggest problem was with the lips of the magazine. Dent thses and you had all sorts of problems.

Heard about the gas plug problem but never expirenced it myself.



Q.
 
#4
Thanks for that Sludge, food for thought. So far have seen the revised cocking handles, trigger guards as you mentioned and revised firing pins to prevent fractures. Read a lot about other modifications as well, but can't find any solid evidence of what difference they made to reliability/performance.
 
#5
The mags were certainly a problem. The sides would dent easily but I found the biggest problem was with the lips of the magazine. Dent thses and you had all sorts of problems.

Heard about the gas plug problem but never expirenced it myself.



Q.
Thanks for that, when you say sides, do you mean the receiver of the weapon or the sides of the actual mags?
 
#6
The original issue way back in 87 . We had to hand them back in as the magazine release catch never had a cover around it . Guys were losing full mags doing roping drills getting in and out of craft losing them in the oggin . I was in training at the time never witnessed any of this but remember our weapons being withdrawn for a short period for mods . Hope that helps . You could use this as your teaching question then lead into what mods have come in since . I'm sure there are guys on here who can verify my story as all teeth arms got issued them around the same time in 87 . Good luck .


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I've heard the exact same story back in 99 when i did my class 3. It was an immediate MOD to put a guard around the release catch. It was before my time but I heard that practice / dummy TMH's were sent to units for the armourer / metalsmith to practice spot welding the guard on. Im sure someone older and wiser will confirm this
 
#10
dank you might want to revise your theory lesson as 20 mins will fly bearing mind you only have 2 mins intro an 2 mins consolidation . 16 mins to get half a dozen KLP,s in tall ask that mate .
Good luck none the less .


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#11
Thanks for the info guys. I am thinking so as well Sludge, but apparently we aren't allowed to change the titles. The idea was checked and approved, so now I have to stick with it.
 
#13
Different bolt, cocking handle, gas plug, ect ect ect. 83 plus modifications IIRC without checking.
Oh, and forward assist is still taught.
 

Travelgall

MIA
Kit Reviewer
#14
You could point out that they brought in the Emag for theatre without doing the extensive trials that they did on the HK mag; so it is debatable whether blaming the magazines for most of the reliability problems is completely fair. I've used both. The main difference I noticed was the Comma Cocking handle rather than the round one. The Round cocking handle had a habit of bouncing ejected cartridges back into the chamber and causing double feeds. Some more info here...

SA80 - Gun Wiki All open source. Google is your friend.
 
#19
From memory there are officially 23 modifications from the late model A1 to the original model A2 (there have been further upgrades....) and all of the changes were painted RED on the weapons.
Magazine - Total redesigen of the outer, new spring, platform and bottom plate.
Gas Plug - Larger gas hole in plug, removal of the carbon collecting lip, made from harder metal, parts of plug then parkerised to prevent carbon build up.
Gas piston - strong spring fitted, painted red.
Bolt - redesign and stronger ejector spring and extractor spring. Updated ones have HK stamped on them.
Firing pin - redesign, new profile and shape, stronger metal used. HK stamped.
Cocking handle - new shape, new material.
Internal springs - many new improved, stonger 'springier' springs all painted red by the hammer assembly.
Return rods - New thicker spring stay to stop the springs being removed from rods while cleaning, strong thicker springs. Painted red.
Body locking pins - made stronger and should be less prone to coming out in your hands.
Body wobble between the TMH and barrel group - finer tollerances and stronger metal used to prevent the to halves from wobbleing like mad.

Cant think of any more.....
 

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