Mayo Gang MGC4 MK4 MWS GBBR Gas Blowback Airsoft Rifle (Two-Tone)
[74013 / LT-341Q11-GBB]
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Mayo Gang MGC4 MK4 MWS GBBR: Our Prayers have finally been answered!
Specifications:
- Manufacturer: Airsoft GI
- Model: MGC4 MK4 MWS GBBR
- Muzzle Velocity: 390-400 FPS
- Magazine Capacity: 30 rounds
- Color: Two-Tone
- Package Includes: Gun, Magazine, Flip-Up Sights
- Warranty Length: 1 Year (handled by Lancer Tactical)
Key Features:
- ADG System(Advanced Dynamic Gas Blowback Rifle)
- Full metal forged style receiver for durability and realism
- 10.5-inch M-LOK rail system for extensive customization
- Taiwanese designed
- MWS internal system
- Upgraded seal parts and valves for magazines
- Ambidextrous controls for versatile handling
- TDC hop-up chamber for precision accuracy
- Steel components for trigger assembly
- Front & rear flip-up sights for quick target acquisition
- Ergonomic Adjustable NSR Stock
Introducing the Mayo Gang MGC4 MK4 MWS GBBR Gas Blowback Airsoft Rifle
The highly anticipated Mayo Gang MGC4 MK4 Gas version is here! Building on the overwhelming demand from the #mayogang community and the success of previous models, Airsoft GI is proud to finally unveil a project several years in the making: our own Gas Blowback Rifle! The MK4 combines the beloved MWS gas system with new upgrades for even more precision, performance, and flair.
ADG System (Advanced Dynamic Gas Blowback Rifle)
The ADG System—short for Advanced Dynamic Gas Blowback Rifle—is engineered to deliver enhanced durability and consistent long-term performance. Built around critical steel reinforcements, this system features a steel trigger box housing, steel trigger assembly, steel ambidextrous selector switch, and steel bolt catch for improved strength and reliability under heavy use. Completing the system is a precision TDC Hop Up Unit, providing finer adjustment and more consistent BB trajectory shot after shot. Designed for players who demand longevity and performance from their gas blowback platform.
Next-Level Design and Functionality
The new 10.5-inch M-LOK handguard provides an ergonomic platform that has plenty of M-LOK space for all of your favorite accessories. With the monolithic picatinny top rail, you have a seamless transition into the upper receiver that allows for a plethora of different optics. The ability to mount slings is imperative to any airsoft gun and with QD Sling Points available at the 2 and 11 O'clock positions, you have find it comfortable to run if you are left or right handed. Combined with ambidextrous controls and the comfortable new NSR stock, this rifle delivers the perfect balance of style and practicality.
Performance Upgrades that Deliver
Inside, the MGC4 MK4 continues the legacy of high-end performance. Featuring full steel components making up its trigger assembly and new and improved valves and seals for its magazines, the MK4 GBBR is a field-ready primary that requires no upgrades in order to be competing amongst the top customs on the market.
MILSIM Ready
The Mayo Gang MGC4 MK4 MWS GBBR is a great pick for the MILSIM community largely because its hand guard is as versatile as it is tactical—featuring seven M-LOK mounting sides toward the front so you can run lights, grips, or other mission-critical gear exactly where you want. It also includes two QD sling attachment points (one on each side of the rail), giving you flexible sling options for fast transitions and modular load-outs. The choice to revert to a forged-style receiver set rather than a more stylized Billet aesthetic really helps it blend into the realistic aesthetic many MILSIM players demand. All in all, this GBBR balances practical accessory capability with a look and feel that fits straight into a serious, realism-driven scenario.
The Ultimate Rifle for the #MayoGang
The MGC4 MK4 is not just an airsoft gun — it’s a community icon reborn. Whether you’re running it on outdoor fields or dominating CQB matches, this rifle gives you the performance edge and unique look that defines the Mayo Gang legacy. Don’t miss your chance to own this limited collaboration that blends innovation, reliability, and style.
Please Note: BB's and gas are NOT included. A speedloader is recommended for the magazine.
Please Note: Accessories shown willNOT be included. Final product may differ from mock up image.
Pre-Order Policy
At AirsoftGI, we strive to get the latest gear into your hands as quickly as possible. Please review our updated terms for all pre-order items:
Estimated Release Dates
All release dates listed on our website are estimates based on manufacturer data. These dates are subject to change due to production or shipping delays.
Cancellations Within 90 Days
If you wish to cancel your pre-order within 90 days of the original estimated release date, you are eligible for a full refund to your original form of payment (Credit Card, PayPal, etc.).
Cancellations After 90 Days
If your pre-order has not been delivered and more than 90 days have passed since the original estimated release date:
- Store Credit Only: Refunds can no longer be issued to the original payment method.
- 3% Loyalty Bonus: Your refund will be issued as Store Credit plus an additional 3% bonus based on the item’s value.
Example: A cancelled $200 pre-order after the 90-day mark would result in $206.00 in store credit applied to your AirsoftGI account.
- Specifications
- Manufacturer: Lancer Tactical








