Action Army 6.03mm Extreme Precision Inner Barrel for M16 (510mm)
[SF27][05845 / AAC-D01-008]
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Precision barrels are best described as an inner barrel with a diameter of 6.03mm or less. Precision inner barrels allow for better compression, improved accuracy, and in a few cases increase muzzle velocity. Although precision barrels often require more maintenance and cleaning, they can give an AEG a greater range and improve the overall performance of an airsoft AEG.
Specifications: Manufacturer: Airsoft GI Bore Diameter: 6.03 mm Gun Type: M16, AUG Barrel Length: 510mm
- Specifications
- Manufacturer: Action Army
- Color: Silver
- Size: 510mm
- Material: Brass, Chrome Coated
- Package Includes: One (1) Precision Inner Barrel

first off, if you thinking about getting a better barrel, but a silencer for your gun so you can extend the overall barrel length making your accuracy better. i put this on my km4a1 and my g&g pm5a4, and it increased their velocity, range and accuracy more than i ever hoped for
Pros:
higher velocity, range and accuracy
lets you put a longer barrel on
easy instalation
Cons:
nothing

I've used allot of different tighbores in allot of different guns. I put this one it a KWA SR12. This barrel is extremely well made! I love that it's stainless steel and not aluminum! That means yeah it'll add a little more weight than other tightbores, but it'll take allot more abuse without being ruined. Plus it has no teflon on it to come off. If you've ever done a barrel swap on a M14 you've probly noticed the hopup locking ring is closer to the beggining of the barrel than on pretty much anything else. Well, my ASGI tightbore came with 2 lock ring cuts on either side of the barrel, so this could easily go into a M14. No other company does that, and deffinately not for this price! I'm taking mine out only because I'm going with an ASGI 6.01mm! lol
Pros:
Very well machined (I know, my dad's a machinist)
fit right in my KWA SR12
very accurate
durrable
best quality for the price hands down
Cons:
not one frickin' thing wrong with this barrel!

Just got this barrel for my KWA M16BR 2GX and I must say, it was worth the money. For those of you who, like me, are worried about installing it and possibly messing up the installation, don't be. It's very simple, just watch the video about it and Tim lays it out perfectly. As far as performance, I haven't used it in an Op yet but I took it out in my yard and noticed a significant increase in accuracy and shot consistancy, an increase in my hop-up's effectiveness (though that may not be the barrel, it may be that I took it apart and lubed the hop-up), a noticeable range increase, and a slight FPS boost.
Your shots seem to stick together more and you don't get as many stray shots that whizz off in random directions. Using only iron sights on my M16 the bbs were hitting right on the money every time at 100 feet (I couldn't test any more range than that cause it was raining and I shot from my garage lol) and I'm sure with this barrel I'll be able to engage human sized targets at 200 feet easily. If you have an M16 and you want to do a simple, relatively cheap mod that will produce great results, I'd highly reccomend picking up one of these barrels.
Pros:
Simple installation
Increase in accuracy
Increase in consistancy
Increase in range
Increase in FPS
Cons:
No cons that I have encountered!
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Will this fit in a jg m16a4 ufc | 0 answers 1 asked |
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Will this barrel work in a gas powered airsoft gun? | 0 answers 1 asked |
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Will this fit a G and G combat machines hop up out unit
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3642 days ago Jett M
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(I have this same question)
Staff Answer:
yes 3641 days ago 0
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1 answers 1 asked |
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A&K Masada?
Will this barrel fit on an A&K Masada? I know its longer than the inner barrel but I am going to purchase a 6" mock silencer for it.
3742 days ago Will S
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(I have this same question)
Staff Answer:
It should fit 3741 days ago 0
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1 answers 1 asked |
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Can this fit an m4
I'm trying to make my g&g combat machine an m16. So if I get this barrel and a longer outer barrel would they work?
3769 days ago James S
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(I have this same question)
Staff Answer:
If it is a real M16, and not an M4 labeled as an M16 3768 days ago 0
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1 answers 1 asked |
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will this fit a jg sr16
will it fit
3775 days ago Hank B
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(I have this same question)
Staff Answer:
It should 3773 days ago 0
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1 answers 1 asked |
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would this fit my agm scar l?
Looking for a new barrel. (Noon)
3867 days ago Doryan H
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(I have this same question)
Staff Answer:
It will be too long 3866 days ago 0
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1 answers 1 asked |
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Will this fit on any M4
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3873 days ago Rylan S
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(I have this same question)
Staff Answer:
The product should fit standard AEG cut inner barrel specified airsoft guns. 3872 days ago 0
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1 answers 1 asked |
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will this fit on a JG M16 A3 AEG?
I want a new inner barrel for my JG M16 A3 AEG and I was wondering if it would fit.
3905 days ago billy l
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(I have this same question)
Staff Answer:
It should fit 3905 days ago 0
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1 answers 1 asked |
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length
How many inches is 510 mm
3926 days ago John E
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(I have this same question)
Staff Answer:
Should be 20 inches 3926 days ago 0
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1 answers 1 asked |
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WIll this fit?
Would this be compatible with my Airsoft GI G4-A3 Troy TRX Carbine AEG? I have a B&T Rotex 8.75" supressor and I need a longer barrel for my accuracy.
3929 days ago Zachary F
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(I have this same question)
Staff Answer:
It should be able to fit 3928 days ago 0
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1 answers 1 asked |
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Fully auto or Semi auto | 0 answers 1 asked |
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g&g combat machine m16?
If I were to get this would I have to put on a longer barrel or any other upgrades?
3964 days ago Frederick B
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(I have this same question)
Staff Answer:
It depends on the current length of your outer barrel. Real M16 barrels are 20". If your gun has a 20" barrel it would work 3963 days ago 0
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1 answers 1 asked |
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Will this fit on this DMR?
Airsoft GI FMG4 13" Next Gen. DMR
3964 days ago Brendan S
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(I have this same question)
Staff Answer:
It should work with that gun 3963 days ago 0
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1 answers 1 asked |
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how long of an barrel extension will i need if i put this on my m4 cqb?
looking for an shorter gun but also has range on the field
3984 days ago Kevin D
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(I have this same question)
CQB/Field is not going to work with this barrel. It's just way to long. A normal M4 or a Robinson XCR or AK will do the job.
3871 days ago
Garrett B
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1 answers 1 asked |
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Will this fit an M4A1 pattern?
Will this fit an M4A1 if I add a barrel extender.
4030 days ago Stephen F
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(I have this same question)
Staff Answer:
Yes it will fit. But you will need a barrel extension at least 6in in length. 4028 days ago 0
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1 answers 1 asked |