Tux's M14 DMR -- Alli
Well guys, I was registering for the follow up to the prequal of a large event I am attending and I saw that the field would most likely be better off for a DMR vs. sniper rifle. The field is sort of an urban CQB style with many buildings and rooms needed for clearing.

This being said, I have set off to create a tactical looking, low FPS, high range DMR. The base of this gun is a scrapped KART M14 SOCOM that I originally purchased for $10.

What I have done so far:

-- $25 Sanded the original WOOD SOCOM stock, removed the chinese branding, texturized the main grip points, and painted it matte black
-- $10 Painted all metal parts a "pewter" or "brushed" black color (removes shiny metal look)
-- $20 Removed the SOCOM flashhider, cut the outer barrel to size, and custom welded a full-length M14 flashhider to the end cap (this had to be done because of the full-length inner barrel explained later):

-- $85 Created a TK Twist (twisted 6.03mm ID x 510mm Length) full-length barrel setup combined with a Madbull Sharkfin 60 Degree H-nub hop-up rubber


-- $20 Installed metal bushings and reshimmed gearbox


-- $40 Bought and installed an Echo-1 M14 RAS system


Product so far:



She chronos at right at 300 with .20g.
She's accurate out to 210' (36" grouping)

Special thanks to cmathis for mechbox work and Matt A for custom metal work. I wouldn't be able to pull this gun off without them.

I'm going to put a scope mount, a MEDIUM rise 1" ring set, and a Tasco .22 Rifle Scope on her for scouting and precision shots.
The mechbox is completely stock besides the shims and bushings. Do you think she can handle a 9.6v?

This post has been edited by Tux: Apr 16 2009, 11:51 PM

Well the only reason you would get a 9.6v battery is for a shorter trigger response,but yes it SHOULD be good wtih a 9.6v.Also if you installed a MOSFET it would shorten your trigger response and boost your ROF.

I just want to know if the Chinese gears, piston, etc would hold up.

Well ALOT of AEG's are Chinese and they hold up perfectly,pretty much ANY gun should hold up to a 9.6.Also where did you get this for $10?!?!

Go here if you want a good cheap scope. They are known brands but are much cheaper since they are directly from asia.

I bought this for my M4, and its really nice, came with rings and lens covers, and its all metal and the brand you mentioned in your post, Tasco.

This post has been edited by Infinite Grim: Apr 16 2009, 02:33 PM

I have a scope, rail, and ring solution setup already but thanks!

I would have to disagree that all AEGs can handle a 9.6v. My stock mechbox came with PLASTIC bushings. I'm pretty sure the 9.6v would have caused the gears to tear through them.

Hints why I said pretty much

Wait, so you got the Kart for $10?!?!?!
Sure it may not be the best brand, but what all did it cost you to get it working? And with the total upgrading, what did it cost?

To me, this sounds like another one of Tux's ingenious low-budget but extremely high-performance builds!

This post has been edited by hightower: Apr 23 2009, 07:55 PM

How exactly did you "make" a tk twist barrel?

Eh. Plastic bushings actually hold up for quite a while. I'd feel safe running a 9.6v in them, and I have in my old JGs.

Your gearbox should be fine.

He was talking about creating a barrel setup (barrel, hopup, bucking, combo etc), not the barrel itself.

It's looking good Tux.

Just a note, I had Nylon bushings in my ICS MP5 for almost 8 years before I changed them out and all I ran was a 9.6 in it (BTW they are still ok just wanted Bearings for a high speed setup)

Any more updates to Alli yet?

I'm going to end up finishing her up by this weekend. My op is on Friday so I should be good to go by then. I'll update you guys accordingly.

Probobly too late to get this but you might want to try a SCS with a systema bucking. Have never tried the bucking your using but I know that the SCS/systema combo works great.

I could see "low power, high rps", but not this.
Velocity directly effects distance.
It's basic physics
A round traveling 400fps is gonna go farther than one traveling 300fps(obviously all other things being equal). The higher velocity will take longer to shed speed, thus taking longer distance to do so.

This post has been edited by fastkevin: May 26 2009, 01:05 AM

Actually, I can see how this project would work. The hopup and barrel setup along with good compression will give each shot greater consistency so that the lower velocity does not affect accuracy, as shown by the 210 foot range with man sized groupings. Also, at a certain point higher velocity can adversely affect accuracy because of the way the higher speed rounds bounce down the barrel.

Well, you are correct but only if you are using the same ammo weight in both guns. See, most people put really powerful springs in so they can use heavier bb's which equal better accuracy and range. that being said, it is entirely possible to make an accurate yet low powered gun(as tux has clearly showed us).

I'd love to hear how you fared at the op Tux

That is not true, a TK Twist barrel, is design to use a low FPS. The airflow around the bb puts spin on it and that spin increases range and accuracy(just like the real thing) But all this being said a 400 FPS bb may go further but it will be less accurate(using the same set-up) Also EBHM4 was right about the consistency and FPS can affect accuracy.

Osu, I know this sounds kind of stupid, but getting praise from you made my day. You have helped me with my fair share of problems through your posts and I hold you in high esteem for that! But back on topic, I also want to know how Tux fared. I bet he did well because having a nice lightweight DMR in that kind of environment sounds like a good situation for someone like him.

Kart must have a damn nice stock barrel to get out to 210 with just an upgraded nub.

major necro. the barrel he has in his m14 is a TK twist barrel so its not the stock Kart barrel

Sorry for the major necro post, but I didnt want readers to get miss informed...



That is not true...

"Q1. "How is it physically possible to have a rifled barrel impart a spin on the BB and combine it with the Magnus effect of the hop-up? It is two totally different axes of rotation!"
A1. Actually, the barrel ISN'T "rifled" in the standard sense of a real gun. Yes, the inner barrel has spiral rifling grooves in it, but the BB does NOT touch the groove. The purpose of the TWIST inner barrel is not to put a rifling spin on the BB. It is to put a "cyclone" of air around the BB, to help float it through the inner barrel and PREVENT the BB from touching the side walls of the inner barrel at all. The result of this is higher accuracy, more predictable trajectory and greater effective range."

(taken from http://www.airsoftcanada.com/showthread.php?t=27059 But look anywhere and almost everyone will say the same thing unless they are misinformed themselves.)

I just wanted to make sure other readers knew the truth. Just trying to be helpful :D

since this thread has been super necro'd, got any more updates in the past almost year tux?