12 ga upper for M-11/9 project

[rybread]

Meanwhile at the unicorn farm, got the new top cover hinge dropped off to be redone properly.

[bruh44]

Looking good!

[Gaujo]

looks like a pig top cover.

[rybread]

looks like a pig top cover.

Tis! When I said I’d make this upper look like one.. I wasn’t joking! A Pig stock will go on the ass end.

[rybread]

Prepping Mac interface for mounting.

[har1340]

Hoping your keeping the measurements for many copies...

[rybread]

Hoping your keeping the measurements for many copies...

Hmm I can take some? All the new parts are measured already for cutting.. everything else is you know... cut this, cut that a bit here and there. We’ll get to that!

[mattnh]

looks like a pig top cover.

A lot More like an M240 topcover...

[rybread]

This is correct. M240 cover, M60 stock.

[rybread]

This part has moved slowly because I’m being very deliberate at each step.. you can always remove more material but it’s a bit more challenging to add it back.. I can always cut more. This approach has served me well. I’ll continue to grind down the shotgun housing & Mac mount until the fit is perfect.

The gap here approximates the magwell location.

[rybread]

Stock mount is being machined this week- from aluminum. I have some vacation time this week so I’ll continue to work on assembly.

[rybread]

Stock mount arrived. Aluminum beside the 3D print. Its nice- will require a bit of work for a perfect fit, but that’s exactly what we want.

[evo911]

This is so awesome can’t wait to see a complete unit!

[mattnh]

Stock mount arrived. Aluminum beside the 3D print. Its nice- will require a bit of work for a perfect fit, but that’s exactly what we want.

Normally, there is a piston in the stock that hooks onto the back of the stock and the front of the piston as captured by the yoke
locking the M60 stock to the M60 receiver under pressure. How are you attaching the block shown to the stock?

[rybread]

It’s long enough to rest against the back of the stock, and I’ll put a bolt through the bottom hole to secure it on there. I’ll need to file it down a bit for perfect fit, so there won’t be any wiggle room.

[mattnh]

It’s long enough to rest against the back of the stock, and I’ll put a bolt through the bottom hole to secure it on there. I’ll need to file it down a bit for perfect fit, so there won’t be any wiggle room.

Sounds like that will work!
IMHO, Would be interesting to not require any stock
Mods and support quick attachment
so you could accept any Common m60 stock variant e1,e3,e4

IMHO, would be cool with an m249 stock as well

[rybread]

I do have some buffer adapters and the other types of stocks. Would just need to drill the appropriate holes and cut the side plates at the right angle. Maybe on another build. This is complex enough as it is!

Top cover hinge is complete, picking up this week.

[rybread]

Back to work this week- I have some vacation and will be working on this.

[theduke]

Tis! When I said I’d make this upper look like one.. I wasn’t joking! A Pig stock will go on the ass end.

So the stock may work...?

[rybread]

So the stock may work...?

Yes sir just need to get the sub assemblies situated so it is mounted in the proper location.. it will be close to the last step.