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Matrix "Calico Jack" Polymer M4 Airsoft AEG Rifle w/ M-LOK Handguard & MOSFET (Model: SBR / Tanker Stock / Black / 350 FPS)

ID: 20715 (AEG-MTX-M904X-E-BK)
M904X-E BK 350 / M904X-E BK
Matrix859188207158M904X-E BK 350 / M904X-E BK20715
4.8 stars, based on 37 reviews
Matrix Calico Jack Polymer M4 Airsoft AEG Rifle w/ M-LOK Handguard & MOSFET (Model: SBR / Tanker Stock / Black / 350 FPS)
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MatrixDouble Eagle


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  • Features the new "Falcon" version 2 gearbox, complete with quick change spring, 8mm steel bearings, and a rotary-style hop-up
  • Falcon electronic control system can control fire mode and trigger pull as well as provide battery and motor protection
  • Ambidextrous fire controls provide comfortable use for both righty and lefty shooters
  • M-LOK slots around the handguard run the entire length for easy attachment of accessories and tactical devices
  • Billet-style nylon-reinforced polymer receiver enhances external reliability and gives a unique, distinct appearance
  • Compact tanker stock is perfect for CQB and features plenty of battery space

Manufacturer: Double Eagle

FPS Range: 340-350

Color: Black


Dimensions (Adjustable): 685-780mm
Weight: 2060g
Magazine: 180 Round Mid-Cap
Gearbox: Ver. 2 / Fully Upgradeable Metal Gearbox
Battery: 11.1v small stick type recommended (Battery not included, wired to stock w/ Standard Deans connector)
Hop-Up: Yes, Adjustable
Firing Mode: Full / Semi and Safety (Programmable Burst Feature Available)
Package Includes: AEG, Manual, Mid-cap Magazine

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!

37 Customer Reviews

(Write a review)

by Chadd P. on 09/17/2022
"Very good gun for the money. The black cap that covers the end of the stock comes off easy, but just don't use it. Much easier just to tape a battery (or two for a quick swap) to the side of the stock. Mine had pretty low fps out of the box, but adding a new spring was very simple...Remove the stock with 1 screw.
by lukas h. on 06/04/2022
"AMAZING!!!! Love it..... Its just what i need as a starter in airsoft. Its so much fun and hasn't broken down on me yet... thanks so muck evike!!!!
by victor c. on 05/19/2022
"So we have 2 of these with the m4 stock, and double eagle m904h which is the same exact gearbox, longer barrel/handguard. We can fit 11.1s 1450mah batteries in them just fine.. Out of the box, we really liked these, the MOSFETs handle 11.1s just fine, and have a nice fire rate and the sensitivity on the trigger is very nice...
They shoot straight and are light weight
The MOSFETs are like a gate titan clone with optical sensors and have held up fine after 4-5 months with outdoor use almost every Sunday

Both calico jacks have experienced the same issues:
-Trigger spring both snapped and were replaced
-After upgrading to g&g m120 springs the piston o rings blew out.
- we've replaced the cylinder and piston assembly because the o rings on the piston get flat on the sides too fast losing compression
-one got a broken nozzle
-one had a motor burn out...
- the motors get hot so consider upgrading

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