HKPRO Forums banner

1 - 8 of 8 Posts

·
Registered
Joined
·
3 Posts
Discussion Starter #1
Hi everyone,
I've been lurking for a few months, and just picked up my second MP5 clone. The new one is a Special Weapons SW5C (cast receiver). I knew what I was getting into when I purchased it, but I wanted a long project gun and this fit the bill. From my research on these receivers, this is what people are saying:

Pros:
Bomb Proof, stronger than any stamped version
US Made
Lack of welds
Makes a great custom build platform

Cons:
Non standard Barrel / No flutes
No Barrel Pin to hold barrel in place
A3 (Collapsable) Stocks won't fit initially on some versions
Poor Foregrip Fit
Loose magazine well
Stiff Paddle Release
Cocking Handle doesn't lock forward/rattles
Semi shelf too low for standard HK Trigger groups
Rough finish due to casting process
~5 ounces heavier than stamped version

Mine didn't have any of the problems listed in light grey, so either someone upgraded this one before I got it, there were versions released without these problems, or that information is inaccurate. If anyone has further information on the cast receivers I would be interested. Regardless of how this one got improved, its good for me.

My real question here is how/why were these made without the barrel pin? Is the pin totally missing? Or is the barrel still pinned to the trunnion under the receiver? If the pin is missing entirely, is the only thing keeping the barrel in place the press fit?

So what else do you know about the cast clones? and how does the lack of a visible barrel pin work in this weapons platform?
thanks in advance for sharing the knowledge
-K1nslayer
 

·
Registered
Joined
·
522 Posts
I bought one of those receiver and then sold it when I couldn't find an H&K smith willing to work on it.
 

·
Registered
Joined
·
3 Posts
Discussion Starter #3
No ones knows? One of the builders here must have seen these SW Cast receivers and can drop the knowledge.

How/why were these made without the barrel pin? Is the pin totally missing? Or is the barrel still pinned to the trunnion under the receiver?
thanks!


-K1nslayer
 

·
Registered
Joined
·
6,398 Posts
I think it's in there. They just covered it up really well so you can't see it.

I could be wrong though.

I have one and it's my first MP5 type weapon. Built like a tank and the barrel hasn't moved a bit. I seem to remember there being little distorted imperfections where the barrel pin would be, implying it's under there but just welded over or something like that.
 

·
Registered
Joined
·
10,235 Posts
The barrel pin IS there. He assembled the barrels outside the gun and then just pressed the whole assembly into the receiver and welded that in. He had to repress my barrel and now my receiver shows where he located, drilled the receiver and pressed out the pin. My gun had NO bolt gap... and still ran perfectly although at a slower rate of fire with the sear installed. Now it has the holes showing the pin, has a .017 bolt gap and runs as fast as any other MP5 clone.
 

·
Registered
Joined
·
10,235 Posts
Don't bother. I've got over 200K through my 9mm SW-5 and the barrel still looks new. You going to shoot more than that in your lifetime?
 

·
Registered
Joined
·
6,398 Posts
Thanks for the info Shattered Mind! Much appreciated. I got the A3 stock fitted, now I'm thinking of removing the barrel and sending it off for Ferritic Nitrocarburizing.
H&M Metal Processing: What is Black Nitride?
I'll post pict's if that becomes a reality. :63:
-K1nslayer
Post some pictures now, noob. We're going to stop giving you free information till you do, slacker.

:wink:
 
1 - 8 of 8 Posts
Top