View Full Version : MG47ES Belt feed
06-03-2008, 12:11 PM
On the ES I just cut the rails short but left a very small projection on the upper rail surface that just fit into the BC slot about 1/8" to assure that they lined up. I then adjusted the rear of the rail so it lied parallel to the top of the receiver. Shim the sides of the trunnion as required to fit snug between the inside of the receiver. Assuming that the inside dimension of your receiver is 1 1/2", use .025" thick shim on each side.
06-03-2008, 12:32 PM
AWESOME! Thanks for the advice... That's a good idea to leave part of the rail on for fit (but cut down). With that, I can align the other end of the trunion, clamp it in place with the shims, and then it'll be good to go!
I thought about doing what someone else mentioned and have the Ejector attached to the bottom of the feed tray, but when looking at things, I decided against this. With the lower 'J' area of the bolt carrier that holds the bolt centered - when dropping the feed tray straight down on top of the closed bolt/carrier, the ejector may not seat properly / deeply into the groove in the bolt, and may not eject right. I suppose I could ensure I have the bolt locked back when lifting the feed tray up to clear any malfunctions, but who wants to putz around with that headache? Not me.
I'll just attach the ejector to the right side plate. Any particular sheet steel you used for your ejector? Or just typical sheet steel of the usual thickness (and then hardened with a blow torch)???
I've got a looooooong way to go though!
06-03-2008, 01:00 PM
The ejector need to be made out of at least 4130 or 4140. Steel with less than .03% carbon will not harden by just heat and quench. It must be case hardened. Just heating a piece of sheet you would by at Home Depot is most likely 1018/1020 or .018% to .02% carbon max and will not harden. Use an standard AK ejector, turn it upside down and mount it on the right side above the BC guide rail.
06-03-2008, 01:29 PM
I don't know if a normal AK ejector will extend deep enough into the bolt / bolt face to eject rounds reliably... Could I buy an AK flat and cut the ejector rail shape out, bend it, attach it, and harden it (to make sure it'll reach all the way over into the ejector channel)? AK flats are made of 4130 or 4140, right? Just curious... Perhaps I'll just order a piece of 4140 or 4130 angle steel thin enough to fit the channel and extends far enough...
Or else I can buy a thicker piece and mill/grind it thin enough to fit, and harden it...
Thanks for the heads-up on that!
06-03-2008, 01:58 PM
iNuhBad, you can get a small piece sheet steel in differnt thicknesses from menards or home depot that is 4140 or 4130. I used the section on mine with the sticker to build some lower rails because the ones that came with one of my kits was too thin for me to weld. No need to cut up a good flat.
06-03-2008, 02:39 PM
I just ordered ak builder rails and used them for my build.
06-03-2008, 07:07 PM
Some have used MG-42 style stocks, and the Length of Pull depends upon several important contributing factors.
1.) Receiver Length - which somewhat depends upon...
2.) Bolt Carrier Extension Length - which somewhat depends upon...
3.) Fire Control Group Location & Modifications - which somewhat depends upon...
Really, the Length of Pull is going to vary depending upon how you build other areas of this weapon as nearly everything is interrelated to one another...
Thanks for the incredibly politician-like answer that isn't really an answer, but I should have specified that being this is the ES thread, I was referring directly to the LOP on the MG-47ES. ;)
Sharpshooter, what is the LOP on the MG-47ES?
06-03-2008, 11:24 PM
With the butt stock I choose to use, the LOP is 40.6cm.
06-03-2008, 11:48 PM
Lets see.............Hmmmmmmmmmmmmmmm.....that would be............. (carry the one)....................15.98" :nanabang:
06-11-2008, 06:31 PM
Okay... Let's keep this thread going now that the site's back up!
06-11-2008, 06:46 PM
Boy I hope so. I have lost about 15 posts and PM's of inquiries for the drawings for the MG47ES. All those who have requested info on the drawings please E-mail me at TKH1747@aol.com with your request again so I can make sure I have answered everybody. Those who paid through Paypal, I have record of, it's just those who are sending a MO that I would like reconfirmed.
06-11-2008, 09:15 PM
I mailed the M.O. today for the prints.
06-11-2008, 09:26 PM
06-11-2008, 11:56 PM
email sent with questions and wondering what the price is, and if it includes a tutorial or just the prints.
06-12-2008, 01:47 AM
Everytime I check, more posts are gone! Will they ever come back from never, never land???? I wonder how many posts I have left now?? Rod
06-12-2008, 02:11 AM
Looks like posts from last seven days are gone. Looks like backups were done on a weekly basis so probably everything posted within last seven days is gone forever.
06-12-2008, 05:40 AM
Which kit is better to use for the MG47ES build, the YUGO rpk, or the Romanian rpk?? Any suggestions?? I have a yugo kit and a set of MG1 cover and MG1 & MG3 feed trays! I am going to have to wait till I get Sharpsshooters instructions so I can go to Home depot to get the metal (need the size to buy) and order the correct size of screws! How many are going to build one of these?? dellque (aka carlque)
06-12-2008, 09:34 AM
I used a Yugo Rpk kit for the prototype MG47ES. I don't think that there will be much of a difference between it and a Romey RPK. Both are heavy barrel and use a bulged trunnion The MG1 feed tray seems to work best according to Cntrailrider. You may have to remove the drum magazine mounting ears on the MG3 if you don't have a shell deflector to keep the ejected cartridges from bouncing on the the drum mount and back into the ejection port. You should get your drawings in a few days.
06-12-2008, 11:08 AM
The drawings for the MG47ES are done and ready to publish. PM or e-mail me for info.
This is just a second posting of a previous notice. The first one is gone
06-13-2008, 11:36 AM
Thanks again, Sharps! I'm off to a VERY GOOD START now, and things are progressing along nicely!!!
Thanks again for the great plans!!!
I scaled mine and plotted them up at 24"x36" size so I can read things very well, and jot down my own notes, dimensions/measurements, and make calculations for my own changes. THIS IS A SWEEEEEEEEET DESIGN, and a VERY NICE, PROFESSIONAL PLAN SET!
Thanks again for doing all this work and being the innovative guinea pig!!!
06-14-2008, 01:04 PM
Having built a 1919, I thought it was pretty amazing at the time. This blows any home built firearm I have ever seen away. I'd love to try my hand at it. Coming from an engineering background, the fact that you got this to work with so many off the shelf parts is one hell of an engineering feat. You should put it on your resume and apply to a gun manufacturer.
06-16-2008, 09:29 PM
I just received THE DRAWINGS they are fantastic!!! With all these details in hand, just about ANYBODY should be able to build themselves an operational MG47ES beltfed! THANKS! Sharpsshooter for all your hard work and attention to detail!! YOU ARE DA MAN!!! I am going to copy them onto hard copies that I can keep in a folder on my work bench for instant reference! THANKS, again! Rod (carlque aka dellque)
06-17-2008, 12:02 PM
I'm new on this board and read about this build via AR15.com. I too would like to try building a MG47ES. Unfortunately, having fewer than 10 posts, I can't PM or Email anyone through Gunco. This has to be THE most innovative build I have ever seen (and therefore on my must have list). Sharpshooter, can you contact me to see if I can purchase a copy of the plans?
06-17-2008, 04:17 PM
06-17-2008, 08:15 PM
Thanks, payment sent. I'm giddy like a schoolgirl just thinking about how cool this thing is.