Contact Us Tel:(626) 286-0360 Store Locations
Phone Support M-F 7am-5pm PST
Browse by Type or Category
FREE SHIPPING for orders over $129! New deals released hourly and daily. See Deals Here!

Matrix M4 GBB AR-15 Gas Blowback Airsoft Rifle w/ Reinforced WA System (Model: Slant Cut MLOK 13")

ID: 81104 (GR-MTX-MC6648-MLOK)
4.6 stars, based on 29 reviews
Matrix M4 GBB AR-15 Gas Blowback Airsoft Rifle w/ Reinforced WA System (Model: Slant Cut MLOK 13)
Hover or touch above to zoom
Optics not included
Youtube preview Product image 1 Product image 2 Product image 3 Product image 4
MatrixGolden Eagle


Free ShippingNo Coupon Required
Free shipping within lower 48 US states, no coupon code needed!


  • Utilizes the Western Arms gas blowback system ensuring reliable performance with a plethora of aftermarket parts and accessories
  • Injection molded polymer receiver provides rugged durability without the additional weight of a metal receiver
  • Improved gas efficiency, reliable feeding and firing in full auto
  • Adjustable SOPMOD type stock
  • Flat top receiver is ideal for mounting optics or other 20mm accessories
  • 20mm railed MLOK compatible handguard with MLOK mounting points on the 2 O'Clock, 6 O'Clock, and 10 O'Clock positions

Manufacturer: Matrix

FPS Range: 340-380

Model (Type): Slant Cut MLOK 13"


Length: 765mm-855mm, Adjustable
Weight: 3300g
Inner Barrel: ~363mm
Magazine Capacity: 50rds Uses Matrix, G&P, Western Arms, King Arms, Inokatsu, and compatible magazines.
Muzzle Velocity: 340~380 FPS (Measured with 0.20g BBs and Green Gas)
Thread Direction: 14mm Negative
Gas Type: Green Gas
Fire Modes: Semi/Full-Auto, Safety
Package Includes: Gun, Magazine
Hopup: Yes, Adjustable

About Matrix

Established in 2001 for Airsofters by Airsofters. Team Matrix thrive on the vision to better the sport of Airsoft with affordable high quality Airsoft equipment. With decades of experiences as Airsoft enthusiasts ourselves, we live, sleep, and breathe Airsoft. Matrix offers a wide selection of skirmish grade replicas from rifles to pistols, a wide variety of accessories, and tactical equipment from helmets to boots. It is the Matrix mission to prepare every Airsoft shooter the perfect experience!

About Golden Eagle

Golden Eagle International (HK) Limited was founded in 2007, with strong experience in developing and manufacturing high-quality airsoft guns, airsoft parts and related survival game products under the brand GE Airsoft (Golden Eagle Airsoft). As a professional supplier, our goal is to ensure customer satisfaction by providing high-quality products and excellent after-sales service.

29 Customer Reviews

(Write a review)

by Peter A. on 08/12/2022
"Love this rifle realistic feeel and recoil at a small price
by Richard W. on 07/24/2022
"I'm loving this GBBR, the feel and everything is just amazing.

1. Easy disdisassembly
2. Works great out of box
3. Easy hop up(located in the barrel from the inside)

1. Mags are don't hold enough green gas
2. Polymer/plastic receiver
by Brian P. on 08/11/2020
"Just received this rifle and let me say that for the price this thing is amazing. This rifle is more aimed for the beginner Gbbr air softer that is scared to drop their entire life on a gbbr rifle. This thing is nice, the lower receiver feels like metal, its actually plastic, i thought it would be annoying since it was not metal be to be honest i do not feel it when im shouldering this rifle. The kick is outstanding, especially since this is a half metal and polymer construction rifle. Only sad part is that i had to drop the same price of the rifle on KA gbbr magazines :p

Lightweight (cons for some idk why)
Hard Kicking
Solid Construction
Easy take down (just like Real Steel)
internals should not pose a problem after break in (take care of it as usual though)

Mag filling valve is kind of shotty when filling it up
Magwell is super tight (something i hope wears down)
Just get it, Its worth it, wont regret.

Comments & Community

Discuss about Matrix M4 GBB AR-15 Gas Blowback Airsoft Rifle w/ Reinforced WA System (Model: Slant Cut MLOK 13) with your friends and fellow shoppers!

Have an urgent question about this item? Contact us, our resident experts are standing by to answer your questions!

California Proposition 65 Warning: Cancer and Reproductive Harm -

Customers who bought this also purchased

Parts and accessories may not be compatible with the product displayed on this page. For compatible parts/accessories, see the You May Also Need section and please verify details on the product description page.

Search tags for related products