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DIY Tech Specific Tech How-To's for Customizing your Gun

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Old 01-07-2012, 12:32 AM   #1 (permalink)
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20 round Spring feed loader

Well I got this idea while reading CJOttawa's DIY open class feeder.

I did modify it a bit, see links below. It acuatully holds about 25 rounds but I would just load 2 ten round tubes. It's not done yet still needs coatings and a few tweaks but it works.









And last one with loading tube attached




I have more detailed pics and I will load more tomorrow, will also see if I can get a vid up


spring tube*

Making this spring tube loader you need all 3/4 copper tube and fitting, dremmel, solder and torch, and a tube cutter.
Parts list
- tube at 15-1/2 inches*
- one 3/4 cap
- two 90 deg elbows with a male and female ends
- one 3/4 tee with all female openings
- I used a hard plastic turned on a lathe for the plunger ( best name I could come up with) cut to about an inch long.
- two screws 10-32. One for the front cap and one for the plunger
- two T 9 clip springs, it's what I had but it works.

I had the slot milled by my buddy but you can use a dremmel to cut it, just try and keep it smooth, so the screw does not hook. The slot is 12-1/2 inches long
With a catch at the end. Start 1 inch from the end of the tube which is where you will solder your first elbow. Now I took my feed neck off but you can get a 90 deg tube with 2 female ends and put a bit of tape on it so you can lock it in the feed neck. On mine I cut a bit off on the male end of the 90 so it will fit lower to my marker.*

Next fit the cap on the other end and drill a hole so you can put a screw in to keep the cap from flying off. If you look at my pics you can see where I put the slot on the top so I can use the 2 screws as iron sites.

Fitting the tee to hold the tube in place is a little difficult, I found the best way was to put another piece of copper tube in the tee and clamp it so it holds straight in line with the upper tube and level too. But before soldering I cut the leg to the right height and dremmeled *the leg of the tee so it fits the shape of the feed tube. The height will be determined by how you set it up and each marker will make it vary, you might need to add an extension.*

As for the feed port you can do several different senero's. I chose the 90 deg elbow and pointed it away from me. You can also do one straight out just make sure the 10 round tube fits in.*

When done all this take the cap off the end and drop the plunger in and then the 2 springs and put the cap back on. Also I tried a smaller spring from a milsig clip but it would just force it way out of the feed tube.*

I will be building another and this time I will take the pics as I go along showing all the different steps. *If I missed anything, which I prob did, just ask and I will fill in the blanks.*
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Last edited by Curt; 01-08-2012 at 07:58 PM.
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Old 01-07-2012, 12:44 AM   #2 (permalink)
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pretty cool!
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Old 01-07-2012, 05:13 PM   #3 (permalink)
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Thanks, used it today and it worked great. Few little tweaks to do but it overall perfect. Might build a new one and change a few details.
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Old 01-08-2012, 10:27 AM   #4 (permalink)
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Old 01-08-2012, 10:49 AM   #5 (permalink)
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Old 01-08-2012, 02:59 PM   #6 (permalink)
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Sorry had a prob on imageshack, will repost
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Old 01-09-2012, 10:16 AM   #7 (permalink)
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The tee to hold the feeder out front is pretty slick. Nice job!
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Old 01-09-2012, 01:26 PM   #8 (permalink)
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I did coatings last night, will post up after work
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Old 01-10-2012, 07:55 PM   #9 (permalink)
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coated pics





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Old 01-30-2012, 11:25 AM   #10 (permalink)
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oh curt, great minds think alike
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