Madbull Airsoft Black Python 6.03mm Tightbore Inner Barrel for AEGs (Length: 407mm)

"I bought both the 509mm and 229mm length barrels. They are made of really nice quality and lightweight. Aluminum is given a bad rep, but both barrels have proven to be good enough for my use case. And the guns are both shooting straighter too.

"Vary good barrel put this in my AEG that has a emg retro arms rotary hop up and a maple leaf 🍁 bucking easy 250 foot shots with a mostly stock gearbox

"Way better accuracy then the stock barrel, now my HPA'd P90 shoots dimes with the Promethious Purple bucking. Highly recommend

"Picked this up for my CYMA M14. My mistake for buying one apx 3cm short, BUT I installed it anyways as well as a new Hop-up Bucking. I had a fair grouping at 50m before changing at roughly 8 inch spread. New Barrel and Hop, it's about 3 In spread. (when the wind isn't whipping) Very happy for my DMR build.

"Upgraded my ICS MP5A4 with this barrel. No mod needed

"Fantastic barrel at a low cost. These do eventually scratch up on the inside, but it takes TENS OF THOUSANDS OF ROUNDS to do this if you use quality BBs. I have built DMR's, assault rifles, and CQB guns with these barrels, and they've all shot absolute lasers.

"Mad Bull Black Python 6.03mm 300mm:

After reading the reviews i went out on a limb and got this barrel for my Cybergun Scar-L. I can say nothing but good things about this barrel. Finally got out to play and just swapping in this barrel increased my gun by 30FPS! The groupings are way tighter and it makes my gun shoot like a laser.

Pros:
-boosted FPS
-groupings are way tighter
-range increase
-looks tactical
-all around great upgrade
-fair price

Cons:
-Zero

"This is the v2, and its great

"I've been using these in everything for as long as I can remember. Great value and performance.

"Longest barrel iv bought, don't expect to use it indoors. My second Black Python barrel. Swapped this one into 2 different m4's and increased range in both with 2 different hop ups and a mix of other parts.

"Increased my range and fps instantly... Works well in my type 96 sniper.

"I installed this on my CM16SRXL and I love it. Combined with the madbull red bucking I gained 30-40fps. I definitely recommend this for anyone looking for a quick way to increase the effectiveness of their gun.

"Installed on my G&G m4, very easy and works great!

"This is a great inner barrel. I put it on my combat machine and it worked great

"I installed this onto my G&G Combat Machine CM16 Raider and it is incredibly accurate! I highly recommend this inner barrel as it's definitely worth the money!