Buffer spring replacement tutorial.

1722 Views 11 Replies 6 Participants Last post by General Sam, Jun 27, 2014

trnswrp10

Discussion Starter · Feb 15, 2014

Recently I posted in my Wants thread that I was looking for a Soldier Story buffer spring and General Sam suggested that I use the springs from a 4 in 1 click pen. So I went looking and found this pack at my local Office Max. It was just $3 bucks for the pack. :thumbThis is what the pack looks like.

So after getting home I cracked one open to get the springs out and this is how it went.

After screwing the two halves apart you'll have to pull out the pen cartridges.

Then you will have to remove the retainer next. Be careful when pulling it out otherwise the springs will go flying. :wink

You'll need a pair of long slim nosed pliers to get at it.

The upper spring is the replacement and the lower is an original Soldier Story spring. Quite a bit of difference, huh?

I am not sure what size springs other manufacturers use exactly, if any, but I figure they would be very close to either one of these. I am an SS man myself. :wink

Please note that the gun in the following pics is not an SS rifle. I am not sure what brand it is. Been awhile since I got it, but it didn't come with a buffer spring so I decided to modify it to accept one using a spring from the pens.

First you'll have to remove that pesky little pin that holds the gun together. (Note: When removing the pin use a paper towel as a mat. It will keep that pin from bouncing into the endless reaches of the universe. :tongue)

Then you need to slide the upper forward and then upwards to separate the two pieces.

Next you'll have to drill out the end of the buffer tube using a 5/32 bit to allow the spring to seat into it about an 1/8 of an inch. It takes some of the compression pressure off the spring so the bolt isn't so hard to operate.

Next I decided to drill out the receiver (5/32 bit) so that the bolt would slide easier. It was tight and with the spring in place it would hang up.

After drilling the receiver out and cleaning up the bits inside I swabbed the inside of it with a Q-tip loaded with Vaseline and the slide glides like a dream now.

oke

Reassemble the bolt and put the spring in place as pictured above. Then test fit the two halves together and slide the bolt back to ensure smooth operation. You may have to cycle the bolt several times to get a smooth action. I had to file the inside of the receiver and buffer tube a little bit to get it to work right. If your happy with it, pop that little black pin in place and enjoy your work.

See less See more

Save

1 - 12 of 12 Posts

General Sam

· #2 · Feb 15, 2014

wooo ! great tutorial ! Very helpful to document the process !!
A bit dangerous to drill out the buffer tube end and receiver. A wrong move and the gun is totalled. I have much trouble finding the right size of spring and have wrecked a couple of click-y pens doing so as well. Its a very trial and error. Perhaps hobby shops sell springs of that size ?

I noticed there are 2 types of buffer springs used by 1/6 rifles now.

1. The spring fits INTO the buffer tube, and spans the buffer tube length. (spring is long)

2. The spring sits ON the rim of the buffer tube. (spring is short)

3. The buffer tube is solid. The spring sits ON the solid buffer tube surface. (spring is short)

Previous SS weapons use (1), however their latest Version 3 M4 ( the one that came with the PJ C) has moved to (3)

A few DAM weapons use (2).

Anyway very informative tutorial ! :bravo

See less See more

Save

Broadshore

· #3 · Feb 15, 2014

Nice work Warp and really cool ideal.

Save

turkeyshot

· #4 · Feb 15, 2014

trnswrp10 said:
Please note that the gun in the following pics is not an SS rifle. I am not sure what brand it is.

Are you sure about that? That looks like a SS to me.

Save

trnswrp10

Discussion Starter · #5 · Feb 15, 2014

General Sam said:
wooo ! great tutorial ! Very helpful to document the process !!
A bit dangerous to drill out the buffer tube end and receiver. A wrong move and the gun is totaled.

You are quite right Sam. I was worried about that too. I stepped up the size of the bit to minimize the risk of drilling out the buffer tube.

Perhaps hobby shops sell springs of that size ?

They might. Would most likely be something in the RC section.

Anyway very informative tutorial ! :bravo

Thank you.

Broadshore said:
Nice work Warp and really cool ideal.

Thank you BS.

turkeyshot said:
Are you sure about that? That looks like a SS to me.

I am pretty sure. I looked through all the pics of the modern figures on the Soldier Story website and they don't show that gun.

Here's a pic of the guns. The top one is the one from this thread, the bottom one is an SS gun from the 75th Ranger figure.

Note the difference in the stocks, the handles, print on the lower section/mag well and how the barrel housing attaches to the receiver. Plus the bolt design is different too. The SS has a flat faced bolt and the other gun has that "nipple" that the spring will slide over. (Pics 7 & 8 of the receiver.)

See less See more

Save

General Sam

· #6 · Feb 15, 2014

The 75th ranger rifle is the M4 RIS II with Daniel Defense rail.

The hk416 in question is indeed a soldier story rifle. One that was issued way back as part of the Soldier Story－USAF CCT（Xpo 2011 Exclusive）( US CALTEK Version).

This product is NOT listed on the SS website.

The (china MEF) version had the bald head with his mouth open in perpetual pain. That came with a different stock as well, the magpul E MOD stock in tan.

If it didnt come with the buffer spring, it should be a defective 416. Congrats on "winning the lottery" :lol

regarding the springs, i will have an extra hunt around for them ,or if i can ,i will identify suitable pens that contain the right spring size and make this information available to OSW.

See less See more

Save

trnswrp10

Discussion Starter · #7 · Feb 15, 2014

Thanks Sam. I should have said I looked at the pics of figures I thought it came from. I didn't think it was that old. I just looked again and it came with other figures too, but with different stocks/configurations. I usually don't buy special figure parts, but I did this time. Also I bought two of them and modified both of them to have springs. Had I dug a bit harder and discovered this I would have left them in their original state and not modified them. Oh well.

Save

blackops4free

· #8 · Feb 15, 2014

Brilliant! Thanks for sharing this.:hifive

Save

saiko

· #9 · Feb 16, 2014

Great idea, I'm always looking for tiny doodads that fit into builds.
So far I just use clipped paperclip sections for missing take-down pins on rifles. (My E&S M27s were missing them

)

Save

General Sam

· #10 · Feb 16, 2014

trnswrp10 said:
Thanks Sam. I should have said I looked at the pics of figures I thought it came from. I didn't think it was that old. I just looked again and it came with other figures too, but with different stocks/configurations. I usually don't buy special figure parts, but I did this time. Also I bought two of them and modified both of them to have springs. Had I dug a bit harder and discovered this I would have left them in their original state and not modified them. Oh well.

Well, but they work like a charm now right ? As long as you are happy.

Turkeyshot has no qualms about cutting up his weapons ( expo weapons or not) to make custom ones :lol

saiko said:
Great idea, I'm always looking for tiny doodads that fit into builds.
So far I just use clipped paperclip sections for missing take-down pins on rifles. (My E&S M27s were missing them )

If you are talking about your M27 missing buffer springs, they are present. Just that the charging handle group is very tight against the buffer tube and thus does not slide. To remedy this, just do some sanding.

Save

trnswrp10

Discussion Starter · #11 · Feb 16, 2014

General Sam said:
Well, but they work like a charm now right ? As long as you are happy.

Yeah, I'm happy that I didn't destroy them in the process. :wink

Turkeyshot has no qualms about cutting up his weapons ( expo weapons or not) to make custom ones :lol

That is ok, if you have the skills. (I can be all thumbs at times.)

If you are talking about your M27 missing buffer springs, they are present. Just that the charging handle group is very tight against the buffer tube and thus does not slide. To remedy this, just do some sanding.

Saiko is referring to the little pin that holds the gun together. (First gun pic with the part circled in red.)

Save

General Sam

· #12 · Jun 27, 2014

Found them : Did up a tutorial, read it here : Buffer springs found

Save

1 - 12 of 12 Posts

This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.

Top Contributors this Month