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Bubacus
December 28, 2016, 07:03
Now this looks interesting. Certainly not for the H&K purist, but very innovative. An upper in multiple sizes that takes all of your H&K parts (barrels, lowers, etc). Wonder what the price will be.

http://www.thefirearmblog.com/blog/2016/12/28/strike-industries-teases-mp5/

http://www.thefirearmblog.com/blog/wp-content/uploads/2016/12/IMG_5301-660x363.jpg

http://www.thefirearmblog.com/blog/wp-content/uploads/2016/12/IMG_5325.jpg

http://www.thefirearmblog.com/blog/wp-content/uploads/2016/12/IMG_5309-495x660.jpg

John A
December 28, 2016, 10:51
Looking at their sketch, I'm curious how they're getting by with the machinegun hole for the trigger pack.

Thorack
December 28, 2016, 22:59
Hmmm,

Wonder if the trunnion is just drop in or has to be pressed in? Smart that it eliminates all the welding required on HK style receivers.

Thorack

mp
December 29, 2016, 08:30
Didn't someone (FAC) try the aluminum HK design receiver years ago, and it was a complete failure?

gunplumber
December 29, 2016, 09:37
Didn't someone (FAC) try the aluminum HK design receiver years ago, and it was a complete failure?

It was a Dan Coonan design sold by FAC and Springfield Armory. It was not a functional failure. It was a successful way to mount a complete barrel/trunion assembly into a new receiver without removing the barrel. While the two roll pins were cheesy, and of dubious longevity, and it was ugly as hell, it did work.

rustypirate
December 29, 2016, 10:23
Looking at their sketch, I'm curious how they're getting by with the machinegun hole for the trigger pack.

It looks like they aren't, those look to be post-sample guns and production would be for law enforcement or military only.

rustypirate
December 29, 2016, 10:27
Hmmm,

Wonder if the trunnion is just drop in or has to be pressed in? Smart that it eliminates all the welding required on HK style receivers.

Thorack

On closer inspection it looks like the trunnion is attached to the receiver with machine screws on the sides. This system would only work correctly with the MP platform, not anything rifle caliber as that would require too much leverage on the cocking tube to unlock the bolt. The aluminum would eventually wear out.

Klaus Von Richter
December 29, 2016, 22:26
Looking at their sketch, I'm curious how they're getting by with the machinegun hole for the trigger pack.

Probably the same way that POF and MKE get away with it. They have a Semi only carrier with a block welded into the receiver.

I never understood the swingdown pin on a HK constituting a machine gun. It's not like it's an AK and the pin is for a full auto sear. That pin on a HK has no effect on full auto function.

As for the design above. It is pretty cool but I'd rather have a regular MP5

HK556WI
January 03, 2017, 20:04
It kind of looks like something Jeff at PCS has been designing and working on for years.

http://www.hkpro.com/forum/parabellum-combat-systems/184211-new-pcs-s-coming.html

Blackwing
January 06, 2017, 18:28
It kind of looks like something Jeff at PCS has been designing and working on for years.

http://www.hkpro.com/forum/parabellum-combat-systems/184211-new-pcs-s-coming.html

Yes....Yes, it does....Very much so....