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Angel Custom G2 SUS304 Stainless Steel Precision 6.01mm Airsoft AEG Tightbore Inner Barrel (Length: 450mm)

ID: 48976 (AC-G2-450)
Angel Custom85918848976948976
4.8 stars, based on 84 reviews
Angel Custom G2 SUS304 Stainless Steel Precision 6.01mm Airsoft AEG Tightbore Inner Barrel (Length: 450mm)
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Angel Custom



  • Crafted from high strength SUS304 stainless steel, the highest strength material of any inner barrel on the market
  • SUS304 stainless steel is highly resistant to rust, stains, corrosion, and is extremely wear resistant providing long years of reliability
  • Precise 6.01mm inner bore improves grouping and accuracy
  • Tighter internal bore may increase muzzle velocity by 20~50 FPS (varies depending on barrel length used, as well as the air compression and internal components of the AEG)
  • Angled hopup window design reduces wear on the hopup bucking
  • CNC milled and tapered crown, individually finished for smooth performance
  • Fine polished internal bore provides smooth and consistent performance
  • Precision milled locking channels securely locate the barrel inside the hopup unit
Angel Custom G2 6.01mm Inner Barrel Series are the pinnacle of quality and performance in the Airsoft Industry. Utilizing advanced machining technology with premium grade materials, these inner barrels stand out in both quality and performance.
After considerable testing and R&D, SUS304 stainless steel was chosen for its qualities that it gives to the application of barrel manufacturing. Despite its higher cost and manufacturing complexity, SUS304 stainless steel provides a such a high degree of hardness, durability, and resilience to ensure the barrel retains its consistency and accuracy even after tens of thousands of rounds. Other qualities of SUS304 stainless steel are that it has natural scuff, corrosion, and weather resistant qualities making it easier to maintain for years of reliability. Each barrel is crafted using precision machinery; a high polish, and precision crowning to provide peak performance.

Compatibility / To Determining the inner barrel length you need:
This barrel is compatible with all Tokyo Marui system AEGs The key to choosing an optimized inner barrel is to prevent it from exposing out of your outer barrel (or flashhider and mock silencer extensions) while maximizing it's length for optimized performance. Please note that the stock barrel length in your gun may not always be optimized for mass production models.
To determine the length you need, measure from where the magazine feed the bb to the tip of your inner barrel, or where you want your inner barrel to end. Subtract ~5mm for hopup unit. Remember, it is perfectly okay to have an inner barrel shorter than your outer barrel, or have the exposed sections hidden in a longer flashhider or mock silencer.

Why Angel Custom?
  • SUS304 stainless steel barrels are simply better than alloy, aluminum, and brass barrels
  • Angel Custom Tight bore barrels are the most affordable steel 6.01mm tight bore barrels
  • Angel Custom's manufacturing capability provides industry leading accuracy and precision

  • Why 6.01mm?
    With the 5.99mm and 5.98mm bbs going extinct, and with present day match grade bbs being 5.88~5.95 for a better center of mass, 6.01mm became the new optimized bore for maximum range, grouping and accuracy.(BB Diameter Deviation Reference: Tokyo Marui / Excel (5.90+). KSC/Evike Japanese Spec. (5.88+). Matrix, WE, AIM Top, Madbull, Elite Force (5.90+).
    6.01mm barrels also provides less air volume in the barrel, resulting less air needed from the cylinder for each projection.

    Inner Barrel FAQ: If you greatly increase the inner barrel of your AEG, you may want to make sure your gearbox Cylinder is adequate. (For example, if you install a 509mm inner barrel on your MP5, you may want to switch the cylinder to a full cylinder so the amount of air inside the cylinder is equivalent to your new barrel.


    Material: High Quality 100% Pure SUS304 Stainless Steel
    Overall Length: 450mm
    Inner Diameter: 6.01mm
    Window Square Cut
    Compatibility: All Marui Compatible AEG's and other rifles utilizing standard AEG specification inner barrels

    About Angel Custom

    Angel Custom was founded on a mission to promote satisfaction and excitement on the Airsoft battlefield. Founded by Airsofters searching for perfections, it is our joy and pride to present you our battle tested creations. We strive to provide quality products and services that are reliable and trustworthy to be worthy of the trust placed in us.

    84 Customer Reviews

    (Write a review)

    by Kyle W. on 06/04/2021
    "My personal preference is accuracy overrides the FPS increase. This 6.01 inner barrel has it. Better accuracy over long distance. FPS will always change overtime but accuracy is way better. This is a great inner barrel for games and definitely would recommend it for anyone looking to increase accuracy and performance of their guns.
    by Al W. on 01/27/2021
    "Barrel came in a great package. Had to trim some, (not the barrels fault), and paired it with a Maxx hop-up. I took me a couple hours to install the hop-up correctly and get flawless contact, but now I have an R-hopped setup that shoots at least 30 ft farther than my stock EMG setup. Not for nubs, and would highly suggest.
    by Jacob C. on 06/15/2020
    I’m very impressed with this inner barrel, I’ve had lots of experience with it as I’ve installed 2 in the past 6 months in my 2 guns, my groupings with .28s at 100 ft are very tight. My FPS and consistency with a maple leaf bucking are superb. I have tried the 200mm and the 300mm both with a maple leaf bucking and have only had good results.

    -Tight groupings at long range
    -20 FPS increase for me
    -Fair price
    -Pairs great with maple leaf bucking

    -Will start to double feed if you don’t clean it after a few weeks, but just use a barrel cleaning rod and a tissue and your all good.

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