Visit our High Wycombe Store
All items in Stock in our High Wycombe Store
01753 299 777 
Laylax Stainless Steel Inner Barrel for AEG Type W (6.03mm - 363mm)
Maximize accuracy, shot consistency, and muzzle velocity with the Laylax Stainless Steel Inner Barrel for AEG Type W (6.03mm - 363mm)! Crafted in Japan under Laylax's world-renowned Prometheus line, this high-precision upgrade barrel features a tight 6.03mm inner diameter and a polished stainless steel finish. Designed specifically for standard AEG hop-up buckings, the 363mm length is ideal for carbine-length rifles such as standard M4/M16 variants, AKs, and similar platforms. Resistance to bending, corrosion, and internal friction makes this precision barrel an essential upgrade for serious airsoft players seeking superior downrange performance.
£39.99
SKU
511746
Free Delivery & Returns*
SHIPPING OPTIONS
DELIVER TO
United Kingdom
United Kingdom
| TYPE | HOW MUCH? |
|---|---|
| Standard | £0.00 |
| Expedited | £4.99 |
DELIVER TO
Other countries
| TYPE | HOW MUCH? |
|---|---|
| International | £14.99 |
Unlock pinpoint long-range precision, improved grouping tighteness, and optimized gas/air compression with the Laylax Stainless Steel Inner Barrel for AEG Type W (6.03mm - 363mm)! Manufactured in Japan under the industry-standard Prometheus label by Laylax, this precision inner barrel represents the pinnacle of aftermarket airsoft upgrade engineering.
6.03mm Tightbore Precision & Superior Polishing Featuring a strict 6.03mm inner diameter tolerance, this tightbore inner barrel creates a tighter air seal behind the 6mm BB as it travels down the bore. This efficient seal minimizes air leakage around the projectile, yielding a noticeable boost in overall FPS (feet per second) and consistency between shots without requiring a mainspring change. The interior wall undergoes an intensive mirror-polishing process to eliminate micro-abrasions, significantly reducing friction for a flatter, more stable flight trajectory.
Durable Stainless Steel Construction & Type W Design Unlike softer brass factory barrels that can flex, nick, or oxidize over time, the Laylax Prometheus barrel is CNC-machined from high-grade stainless steel. This heavy-duty material offers high structural rigidity, resisting vibration during high-rate-of-fire full-auto bursts while remaining completely immune to corrosion and humidity. The "Type W" design features precision-milled hop-up window geometry and locking side notches compatible with standard AEG hop-up chambers and aftermarket buckings, ensuring a snug, air-tight drop-in fitment.
Ideal Length for Mid-Sized Carbine Platforms At 363mm in length, this barrel is the standard size for iconic carbine setups—including M4A1, SOPMOD, AK-102, and similar airsoft platforms. It allows operators to upgrade their factory setup cleanly inside standard outer barrels or conceal extended length setups using mock suppressors and tracer units.
Whether you are building an elite MILSIM rifle, fine-tuning a DMR project, or simply looking to eliminate stray shots downrange, the Laylax Stainless Steel Inner Barrel for AEG Type W (6.03mm - 363mm) delivers the unmatched Japanese craftsmanship needed to out-range the competition.
| SKU | 511746 |
|---|---|
| Type | Inner Barrel |
| Brand | Laylax |
Write Your Own Review
Delivery
Our courier partners deliver from Monday to Friday, excluding Bank Holidays. We will attempt to dispatch all packages within 24 hours, although at peak times this may take slightly longer. Orders with products with two-tone service or Defence Check may take longer to dispatch.
Once the order is dispatched you will get an email with the tracking number and which courier partner it’s going to be delivered via. Any missing/incorrect items need to be reported with 48hrs of signed delivery.
Returns
Click Here to Download the Returns Form (PDF Format)
Faulty Product?! Unfortunately that is part of life but be rest assured we are here to help! Contact one of our friendly staff via phone or email. Stating what the problem is, if we can resolve the problem via phone or email great if not then they will advise how to send it back and what details we require.
Two tone
We can two tone any weapon we sell at Bespoke Airsoft. The purpose for two toning is if you do not hold a valid defense under the Violent Crimes Reduction Act (VCRA, 2006) which is to prevent the misuse of Replica Weapons, which applies in England, Scotland, Wales and Northern Ireland.
The gun will be sprayed 51% in a bright/primary color (we do only blue, green and red currently). The process of two toning currently runs at 2 working days depending on Drying Time, which is effected by Ambient Temperature and Weather. and currently no express delivery is available for this even if you select it at checkout.
The gun will be sprayed 51% in a bright/primary color (we do only blue, green and red currently). The process of two toning currently runs at 2 working days depending on Drying Time, which is effected by Ambient Temperature and Weather. and currently no express delivery is available for this even if you select it at checkout.
FAQs
1. What is a BB gun used for? BB guns are mostly used for practice shooting and training. The stronger ones (i.e. Air Rifles) can also control pests or hunt small animals.
2. Do you need a Licence in the UK for a BB gun? No, you don't need a licence for a BB gun in the UK, but there are rules. The BB Gun needs to be in two colours; one has to be a primary. All our guns are on the website as per default.
3. Is a BB gun a good weapon? BB guns, despite sometimes being seen as toys, can be dangerous. They fire pellets at high speeds and can cause serious harm, or even be deadly in some situations.
4. Can you shoot BB guns in public in the UK without a Firearm license? BB guns in the UK navigate a legal grey area. While certain models, notably low-power 'soft air' types, typically evade classification as section 1 firearms, more potent versions may require a valid firearms certificate to avoid legal repercussions.
5. Can you shoot a BB gun in your garden? You can use a BB gun in your garden under UK law, but you have to ensure the pellets don't go into your neighbour's yard, plot or land. If they do and you don't have permission, it's against the law.
6. Which UK law am I breaking if the pellets go into my neighbour's law without permission? If your BB gun pellets go into your neighbour's yard without permission, you're breaking UK laws. Specifically, the 1968 Firearms Act and possibly the 2003 Anti-Social Behaviour Act, because you may be causing your neighbours trouble or worry.
Discover Our Top Selling BB Gun Guides
Five Best BB Guns Under £30
Discover our five top selling BB guns under £30 guide here.
Five Top Selling Gel Blasters
Discover our top selling Gel Blasters guide here.
Gas guns
Discover our Gas guns guide here.
Toy BB guns
Discover our Toy BB guns guide here.
Five Top Selling BB Guns
Discover our five top selling BB guns of 2026 guide here.
Five Top Selling BB Gun Assault Rifles
Discover our top selling BB gun assault rifles guide here.
Six Top Selling BB Gun Machine Guns
Discover our six top selling full auto BB guns (best BB machine guns to buy) guide here.
Top 6 airsoft pistols
Discover our Top 6 airsoft pistols guide here.