why is the M11 so much longer than the M10? are the internals different too? also, do you bend your own flats?

 

This is very interesting..... If there is a way to WESCOG one of these I might just have to do it down the road.

 

The M11/9mm is a "stretched" M11/380. It allows a longer recoil stroke & a slower automatic rate of fire. This increase in bolt travel(& it's resulting reduction in rpm) is more of a concern with submachine guns, but gives softer perceived recoil on a semi. The M10, with it's bulkier bolt, just doesn't have enough recoil on a semi to be an issue, but they are a pleasure to shoot.

Internally, all the smg's & all the semi's are very similar in function, whether open or closed bolt firing, but how the parts were designed varies. For example, a closed bolt semi will have a hammer, sear plate, safety & trigger, but how the sear springs are arrainged is different & the size of the actual parts is different. They depend more on the size of the receiver & available space inside.

 

John I've got one of the Cobray M11/380 flats.

How do you bend these? Does it take a rig similar to an AK flat?

They used to be everywhere-- are they still buyable?

 

Yes, a similar bending jig to an AK's & a small press with do it. Some flats were sold heat treated & parked, a cruel joke, because they can't be bent. Flats are pretty much dried up & are occasionally reproduced. Still, they show up on auctions for $15-$20 each.

 

you can get the flats from www.cobray.com

do you know anyone that has or sells the flat bending jigs? seems it would be cheaper than buying the center and side flats if you were able to bend your own flats.

edit: damn this thread took off tonight!

 

Since it is merely a channel it would be real easy to construct a bending jig, just two flat steel pieces welded the proper distance apart for an outer die and two flat bars to sandwich over the flat for the inner piece. No top rail to worry about, just the two bottom bends. The rear section could be done by hand.

 

Since it is merely a channel it would be real easy to construct a bending jig, just two flat steel pieces welded the proper distance apart for an outer die and two flat bars to sandwich over the flat for the inner piece.

The one I have is .076"!!

I'm not so sure about the real easy.

 

I bent up an M11/Nine flat many moons ago, just used a couple pieces of angle iron and a vice. Add BFH and something resembling a receiver ensued. At least it fit the stripped upper I had purchased at a gun show for $15. The bends were a little wonky from my first sheetmetal forming efforts, but the steel itself bent easily.

 

If you guys can come up with a source for parts kits I would be in. I would also be willing to make bending jigs if the price and number of orders would be right. I built my own AK bending jig and have had it to a build party as well as many peeps coming to my house and using it.

 

I can handle the parts.

I could also do some small-lot group buys.

 

what kind od price are we talking on a GB. Looks a little spendy on your classified ad if you dont mind me saying that.

 

Regarding that ad, I'm going to pull it or edit it, because my costs have increased since posting it. It also included no-charge shipping, as a favor. M11 kits pack out at almost 5 lbs. Also, I don't have time to keep up with a GB. I don't know what I was thinking last night.

 

I need to look but I believe that I have a set of plans for the bending jig. I was really into these things a long time ago, I might even have a whole kit, but it's been so long I don't really remember.

 

I need to look but I believe that I have a set of plans for the bending jig. I was really into these things a long time ago, I might even have a whole kit, but it's been so long I don't really remember.

My shop's like that -- I'm never quite sure what's in there.

 

well if there is ever a GB on the flats, parts, jigs id be in!

 

you can get the flats from www.cobray.com

do you know anyone that has or sells the flat bending jigs? seems it would be cheaper than buying the center and side flats if you were able to bend your own flats.

edit: damn this thread took off tonight!

I can easily adapt my jigs to do these flats.
I've been considering doing this for about a year... I have a full 9mm and 45acp parts set, but no flats. The flats are 12 guage or roughly .100" thick right?

-Chris