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2/21/2005 12:04:18 PM EDT
I understand that H&K 94/MP5 lowers are compatible with each other and with HK51/53 by swapping out the extractor.  Does anyone know if a MP5 lower will fit on my SW45 if I swap out the extractors?  I want the lightweight plastic over the heavy metal reciever I already have.
2/21/2005 1:28:45 PM EDT
[#1]
I'm no expert on the matter, but I believe an MP-5 lower, since the MP-5 is full auto, has a different shape that won't fit on a HK-94 clone without some modification.
2/21/2005 1:51:01 PM EDT
[#2]
A real MP5 (machinegun) lower will have a front push pin. A front push pin hole on a semi clone is viewed by the BATFE as a machingun! Semi-clones have a front-shelf instead of a push pin. The machinegun lower could be modified to fit the semi gun (do this when you change out the internals to a semi only trigger pack!!!! Any screwing around could buy you a ticket to Club Fed.

You are correct in that any semi lower will fit on any of the HK9x type guns and will fuction with minor parts swap (extractor, and a spring or two).
You may be able to buy just the empty plastic lower (with out the internals from places like POF or Top-Notch for about $90).
2/21/2005 2:09:50 PM EDT
[#3]
Ok, I should have been more specific.  What if I take a Semi Auto BW5 lower and swap the extractors to fit it to my SW45?  Will THAT work?
2/21/2005 2:36:27 PM EDT
[#4]
If I recall, the SW-45 is designed as a 45 caliber HK-94 clone which means that more than likely you will be able to swap the lower with another one designed for a HK-94 and have it fit.  

Would you be able to swap the entire trigger pack out of the SW-45 lower and put it into the BW5 lower?  That would seem like the most likely to work.

I'm just theorizing though since I've never seen a SW-45 before.  Hopefully someone with more experience will chime in.
2/21/2005 4:18:54 PM EDT
[#5]
You need to swap the ejector lever.

The extractor is in the bolt head.
2/21/2005 4:41:43 PM EDT
[#6]
Thats what I meant.  I guess that proves you shouldnt Drink and Post!
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