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Matrix x Double Eagle UTR45 Airsoft AEG SMG w/ M-LOK Handguard and Falcon Gearbox (Model: 400 FPS / Tan)

ID: 95992 (AEG-MTX-M917B-TN-400)
M917B TAN-400
Matrix859188959927M917B TAN-40095992
4.8 stars, based on 19 reviews
Matrix x Double Eagle UTR45 Airsoft AEG SMG w/ M-LOK Handguard and Falcon Gearbox (Model: 400 FPS / Tan)
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Red Dot sight not included
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MatrixDouble Eagle


Canada Export CompliantCanadaExport Compliant
This gun has a muzzle velocity rating (FPS) between 366 and 500, and is compliant for export to Canada.
Free ShippingNo Coupon Required
Free shipping within lower 48 US states, no coupon code needed!


  • Lightweight & durable nylon polymer receiver construction
  • Falcon Electronic Control System can control fire mode and trigger sensitivity as well as provide battery and motor protection
  • Features the new "Falcon" version 2 gearbox w/ quick change spring, 8mm steel bearings, and rotary hop-up unit
  • Flat top picatinny rail for optics
  • M-LOK compatible slots on the 3, 6 and 9 o'clock positions for any accessories
  • Ambidextrous fire selector, bolt release, and folding charging handle
  • Foldable 6 position retractable stock w/ 4 position adjustable cheek rest
  • Textured ergonomic pistol grip
  • Flip up front & rear sights

Manufacturer: Matrix / Double Eagle

FPS Range: 370-400


Length: Approx. 470mm - 641mm, Adjustable
Weight: 2380g
Inner Barrel: Approx. 240mm
Magazine Capacity: 120rd Mid-Capacity. Works with Matrix, Tokyo Marui and other compatible UMP Series Airsoft AEG Magazines
Gearbox: Ver 2 Full Metal, Fully Upgradeable
Thread Direction: 14mm Negative (CCW)
Motor: Long Type
Fire Modes: Semi/Full-Auto, Safety
Battery: 7.4v Small Stick Type LiPo recommended (Battery not included. Wired to stock with a Standard Deans style connector)
Hopup: Yes, Adjustable
Package Includes: 1x Gun, 1x magazine, 2x flip sights, 1x Standard Deans to small Tamiya adapter

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!

19 Customer Reviews

(Write a review)

by Shaun C. on 10/04/2023
"Great gun! The Falcon control system and quick change spring guide are great. My only problem (and this happened to my friends utr as well) if you run a sling the stock will extend itself which could make the gun drop on the ground. I fixed it and now it’s great!
by Cade B. on 07/12/2023
"12 out of 10 amazing gun. Super affordable very well built and very snappy
by hunter L. on 06/06/2023
"Bought the 400fps version figuring I’d get 350 out of it anyway, well I was wrong or they just put the wrong spring in from factory. Chrono with .20 was around 280-290…. Range was honestly trash 60’ before the bbs fell off hard with out hop up on, even worse with hop on. So then the journey starts, I changed the bucking and nub (maple leaf) and same thing with fps and range. Took it to local field and got a 300mm tight bore figuring it’s the barrel (wrong) tried a new spring out a m90 in and now it shoots straight, tagging targets at 120’ no problem and sits at 353fps with .20. So I don’t know if mine just had a bad/wrong spring but here’s info if this happens to you, thankfully it’s a quick change system

But anyway
• the gun is solid, solid as why spend the extra to get the metal version
•mags work flawlessly
•the mosfet is flawless as well
•gearbox sounds perfect
•all the adjustments to the stock length and cheek riser
•all the programs you can do, bianary, 2-5 burst, can semi lock to keep the selector out of the way
•cheek riser does kinda lift up if you don’t lock it in right
•stock doesn’t lock when folded (not a big deal for me)
•my spring situation (could just been mine)
Over all 10/10 for the price, very solid gun

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