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Post by brownien on Aug 27, 2012 21:48:03 GMT -5
I am currently in the process of making a CYMA m14 conversion to BAR. As i am posting this I have a good 3/4ths of my custom m1918a2 BAR complete! I am making it out of as much metal as possible for rigidity and realism in heft. I do not currently have access to a good camera so I will take some photos on my next post. As I stated, Metal, Metal, and more Metal! It will have a sheet steel receiver, of which the sides and top are all welded and shaped along with a steel cylinder welded to the fron to act as the barrel mount. The barrel will be made up of the standard inner barrel of the m14, with the original outer barrel around that. I am using 1/2in steel conduit pipe as an outer outer "jacket" to add thickness to the barrel, and I have cut the gas block to shape and replaced the gas tube with that of 1/2in copper pipe as it was a nice easy size. the end of the outer barrel "jacket" will fit into the barrel mounting cylinder on the receiver and mount with a grub screw. The original m14 bolt spring system will be used to mimic the BAR's bolt, with the main spring in a faux gas piston and the little buffer spring in the gas block. the gas piston will be attached to a rod that runs into the receiver and attaches to the bolt handle and a bolt/ejector port cover that is all actuated by the handle. So far that is all I have done. I currently need to: -make the bottom of the receiver with trigger guard and mag catch -fit the original m14 stock on and bondo the heck out of it to look right -make a foregrip for over the barrel group -make a tube that will rotate freely over the original flash hider for mounting the bipod -and finally make an adjustable ladder sight out of aluminum stock and thin sheet metal (like I did on my m1928a1, which I will post a picture of) As soon as I get a camera operational, I will post up some pics with descriptions! Stay tuned for more!  |
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2nd Bat
Master sergeant 
Posts: 11,813
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Post by 2nd Bat on Aug 27, 2012 22:09:11 GMT -5
Sounds great! Excited to see your results.
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stuka
Sergeant
The one and only
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Post by stuka on Aug 27, 2012 22:24:28 GMT -5
sounds good, i wouldn't mind getting me one at some point if you plan on making them to sell
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Post by aj czarkowski on Aug 28, 2012 21:08:53 GMT -5
If it turns out as your 1928a1 did, it will look great!
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Post by brownien on Sept 6, 2012 16:16:15 GMT -5
So with college started back up, I have not had very much time to work on my BAR. Fortunatly, I have managed to attach the m14 stock to the receiver. I did this by running a section of steel rod through the stock, just as the real gun's buffer tube would be and attached it to the inside of the receiver with two pieces of sheet metal bent to form a U shape. This is effective in holding the stock on with friction so far. With the gearbox in, it is quite hefty, and I would guess to weigh about 10 pounds so far. Even with all that weight, it is still ver well balanced and strong and feels very comfortable to hold and aim. heres a link to the photos so far: s1162.photobucket.com/albums/q537/Brownien1/sorry for the poor quality photos, as they are from my ipod. |
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Post by jettalewis on Sept 7, 2012 18:20:41 GMT -5
Thats a lot of work and it's looking really good. What kind of finish are you going to have on the gun? Blued or parkerized? Also, what is the purpose of the tube going so far into the stock? Do you intend putting the battery there? Thanks and thanks for showing the progress on your gun.
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Post by brownien on Sept 7, 2012 21:40:27 GMT -5
As for the finish Im thinking of a light parkerized finish as I see many of the M1918a2's that have bakelite stock have something like that. That metal tube running into the stock is actually a solid metal rod that is simply forced into the gap inside the stock to hold it in place. It also adds a great deal of weight to the rear end of the gun, making it much less "nose" heavy and easier to handle. Thanks for the encouragement! more progress soon to come!
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Post by brownien on Sept 10, 2012 15:22:11 GMT -5
Hello again! I would just like to mention that I have managed to install the bolt handle, actuating rod and spring setup that mimics the realsteel's bolt. I still need to cut out the shell ejector port and add the faux bolt inside that will also be actuated by the handle. I am also soon to start on the wooden foregrip and once I get that done I will be posting up some more photos.
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Post by brownien on Sept 10, 2012 17:35:12 GMT -5
Ok so i just went out and fitted the inner barrel along with the gearbox. hooked up the battery, popped in the mag and it fired spectacularly! Just like when it was the stock m14! Now just for some cosmetic finishing touches and it should be all set to paint and weather. Quite exciting! ;D Ill post some more pictures when I get a quick chance.
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2nd Bat
Master sergeant
Posts: 11,813
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Post by 2nd Bat on Sept 22, 2012 10:02:26 GMT -5
Please keep us updated as I'm anxious to see your progress and end result and I know others feel the same way. Gotta see more Garands and BARs out on the WW2 airsoft fields.
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2nd Bat
Master sergeant
Posts: 11,813
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Post by 2nd Bat on Sept 30, 2012 18:41:23 GMT -5
In spite of the apparent release of the VFC Clone BAR I hope that doesnt prevent you from remaining motivated to finish your BAR.
I remain quite pleased with mine and would feel better about loaning them out at an event than if I were to buy one. There also is great satisfaction in using something you built yourself. Keep us posted on your final result (although it seems as if with these projects they are never quite 100% done!)
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Post by brownien on Oct 11, 2012 20:15:13 GMT -5
So! today I decided that my small feed tube extention was inadequite, i then snapped the glue holding it on off and got a 2" piece of 1/8" brass tube. Perfect inner diameter for bb's bt a bit too thick in OD. I then cut off the threaded end and threw in into a hand drill chuck. I used this as a sort of "hand Lathe grinder thing" if you will, to spin the tube rapidly as I held it against a bench grinder to thin the side walls. This worked very well and I then rounded the end of the tube where it will meet the magazine. I then drilled out the same diameter as the brass feed tube where the old one was and measured it to the extra length I wanted, cut and glued it in place. I added the extra length to allow the magazine to be tipped back more, and also so the front lip wouldn't catch the forward clip. When I build the lower receiver plate, I will put positive mounting points for the magazine to slide in like a BAR mag and not like an M14 mag. Other than that, I just have to make up a rear ladder sight, shouldn't be much harder than my m1928a1 sight. I'm having trouble adding the photos to my posts, If anyone knows how to get the proper URL or what-not that is needed to post on here for all to see, please do tell!  s1162.beta.photobucket.com/user/Brownien1/library/?view=mediaBtw that last one of me holding it up, she's a brute to hold that way! let alone a real steel gun that way! |
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2nd Bat
Master sergeant
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Post by 2nd Bat on Oct 12, 2012 11:07:07 GMT -5
Wow! fine job! it is really taking shape. Isnt it great when you get to a point with a project where you can tell without question that your efforts are paying off. your conversion looks great. From here forward everything is just cosmetic. The trigger housing will require a little creativity (should you decide to go there) It will add a lot however to your end result. Also though minor you,ll find if you put a little notch in the low part of your butt stock and mount your lower sling hardware there the shape of that rear stock will be an almost exact coy of the BAR Butt stock. It looks fine as you have it but its a little detail that will add a lot.
Overall what a fine effort! Hopefully it will inspire others not only for BARs but perhaps other weapons as well. OUTSTANDING!
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Post by jettalewis on Oct 12, 2012 17:50:21 GMT -5
It's a pleasure to watch this work in progress. Keep it up. I belive I had rather a BAR like this than one of the new ones. Time will tell |
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2nd Bat
Master sergeant
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Post by 2nd Bat on Oct 12, 2012 19:24:50 GMT -5
this project definitely merits a sticky! Keep the progress photos coming and on your photobucket there are assorted html codes you can select and one of them will appear as text within YOUR post but when you submit it, to all others the photos you chose will show up.
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Post by brownien on Feb 1, 2013 22:04:29 GMT -5
Well with another project in the works and almost completed, my BAR will come off the backburner. All I currently need to do is fasten the bottom plate to the gun, and fabricate the rear sight.
Nearly done! Ill have another update soon!
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Post by brownien on May 9, 2013 12:41:45 GMT -5
Well an update for this is wayyy overdo! After some problems with the gearbox not working, I still have the compression problems. It shoots just as far and as hard as my 2ndBat M1, but it will shoot several BB's 10 feet every once in awhile. Not sure why. i originally thought it was the Hopup becoming jammed up, but thats not the case. So that leads me to believe it is the throw of the tappet plate/nozzle. I really want this gun to work out, and after the gearbox "failed" (the trigger contacts just were'nt making contact) I felt the need to scrap the project. But alas, She is working again, sort of. Just takes ALOT of TLC to get this dang thing to work properly!
And for those of you who are wondering, all I have left is to attach the rear sight, clean up the welds on the trigger guard, and paint her up! I really like the outcome, but all the fidgiting to get it to work is very tiring.
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2nd Bat
Master sergeant
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Post by 2nd Bat on May 10, 2013 17:17:36 GMT -5
What a shame as I have enjoyed the simplicity and reliability of the CYMA M14 gear box and set up. my guess is the functional issues are something simple but that doesn't make remedying it any easier. Don't give up on it and post pictures when it makes sense.
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JHank
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Post by JHank on May 12, 2013 19:37:26 GMT -5
The air seal problem is one I had with an MP5. I replaced just about everything in the gearbox before I figured out the issue. It was that my nozzle was not always moving, and would allow a bb in the barrel, but would not move forward to seal it in the hop up. This meant that most of the air escaped, and the bb would pretty much roll out the barrel. The culprit turned out to be the tappet plate. There was a small chip in it that I hadn't noticed, and it was preventing the gear from pulling it back and releasing it forward, resulting in the problem.
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Post by brownien on May 12, 2013 21:17:38 GMT -5
Thanks! Ill have to check that out!
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Post by brownien on May 21, 2013 11:35:52 GMT -5
Well i replaced the tappet, nozzle and entire hopup unit in my BAR, but it still fires BB's only about 10ft in an arc. It seems to have plenty of pressure out the muzzle but alas it only fires 10ft at best. Possibly stoppage in the barrel? But I have cleaned the barrel multiple times and havn't hit any snags. Could a slight bend in the barrel be causing it? Very frustrating  |
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HornetWSO
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Post by HornetWSO on May 21, 2013 17:47:56 GMT -5
I had that problem on an M14 and resolved it with a new spring on the tappet. Somehow the tapped was not allowing the nozzle to go fully forward. Worth a shot.
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Post by brownien on May 21, 2013 21:47:47 GMT -5
Figured it out! It was indeed that the nozzle wasnt getting a good seal, but this was due to the angle between the gearbox and the hopup was slightly off. Unable to really change the angle, I simply shaved off a bit of plastic from the rear of the hopup so the nozzle would move fully forward and seat. Now its shooting without any misfeeds and all bb's are absolute lazers! Hopefully now I can get those dang Kingarms Mags to feed! I plan on finishing up the cosmetics of the BAR tomorow once the power comes back on. Thanks for the help guys!
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roadwarrior
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Post by roadwarrior on May 21, 2013 23:56:58 GMT -5
Awesome! Be sure to get pics up |
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2nd Bat
Master sergeant
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Post by 2nd Bat on May 27, 2013 10:04:57 GMT -5
I too want to see photos of it all assembled and detailed. Glad you got it back functioning.
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