M11/9 Question

[JwestAK]

Hello All,

I am currently looking at an M11/9 for sale. It is an 86 manufacture, and from the pictures it appears that at one point the right side of the receiver had a hole drilled and then welded up where the between the fire/safe markings. Nothing else in the pictures indicate it was a pre 86 forum one build and appears factory SWD. Is this a common thing to see, and should one be concerned with it?

Thanks in advance.

Edit: Picture added

 

[Garrett]

Pretty common. In the rush to get as many receivers registered in the month leading up to the ‘86 ban, SWD took a bunch of existing semi-auto receiver flats, welded up the (semi-auto) safety selector hole, and converted to full-auto spec.

 

[JwestAK]

Pretty common. In the rush to get as many receivers registered in the month leading up to the ‘86 ban, SWD took a bunch of existing semi-auto receiver flats, welded up the (semi-auto) safety selector hole, and converted to full-auto spec.

Appreciate the insight. Just wanted to make sure it was not something that has known to weaken the receiver and should be shied away from.

 

[skoda]

Mine was made in the last week or so and the semi-auto hammer hole is still there. I'm glad that they cranked them out.

 

[woodenword]

Mine is an 86 and is the same.

 

[3154tm]

why did it need to be welded up?

 

[Hey...]

Page 315 in the MacMan book speaks about this specifically on the M11/Nine


as a side note I’ve seen 85,& 86 with the hammer holes and welded semi-selectors. I haven’t seen a converted ‘83, don’t recall ‘84 firmly but think I have…

My ‘86 was made prior to the announcement that MGs would be cut off, it’s before the “rush” period mine being 86-00084XX (per the Mac book) and you can see business as usual… they converted semi-frames to full auto, at will for years. I’ve seen countless this way. No issue with structural integrity due to this weld.

 

[Hey...]

why did it need to be welded up?

Cosmetic.

Otherwise you’d have a big gaping hole letting anyone (that knew) at a quick glance it’s not factory converted.

Like this guy that made a (sloppy) post sample.

 

[JackBlundell]

Appreciate the insight. Just wanted to make sure it was not something that has known to weaken the receiver and should be shied away from.

No worries regarding durability. I have one of the late '86 weld-ups. I've run almost 80,000 rounds through mine with no sign of wear on the receiver, and I am not its first owner.

 

[MitchWerbellsGhost87]

Mine was made in the last week or so and the semi-auto hammer hole is still there. I'm glad that they cranked them out.

The hole isn’t welded over??? I’d love to see this!

 

[MitchWerbellsGhost87]

Cosmetic.

Otherwise you’d have a big gaping hole letting anyone (that knew) at a quick glance it’s not factory converted.

Like this guy that made a (sloppy) post sample.

View attachment 39106

Page 315 in the MacMan book speaks about this specifically on the M11/Nine
View attachment 39104

as a side note I’ve seen 85,& 86 with the hammer holes and welded semi-selectors. I haven’t seen a converted ‘83, don’t recall ‘84 firmly but think I have…

My ‘86 was made prior to the announcement that MGs would be cut off, it’s before the “rush” period mine being 86-00084XX (per the Mac book) and you can see business as usual… they converted semi-frames to full auto, at will for years. I’ve seen countless this way. No issue with structural integrity due to this weld.
View attachment 39105

Basically ALL of the 11/9 SMGs had the hammer holes. You have to go back really early 1983 to find 11/9s that lack the hammer holes. It seems that the hammer holes were pre-stamped into the frame flats and all of the flats had them, with the exception of the earliest of SMG frames. I have only ever noticed the welded over selector holes on the 86 guns.