MILSIG M5 - Magnus
MILSIG M5 - Magnus

MILSIG M5 - Magnus

Regular price $679.99 $0.00

The MILSIG M-Series has always been hailed as the flagship of the MILSIG Line. Uncompromising attention to detail and performance sets these markers a step above the rest. M-Series markers make use of machined aluminium bodies, as well as a collection of upgraded parts, like upgraded grips, ambidextrous selector switches, and more. The M5 sets a new standard for a high-performance MagFed Marker.


Internally, the M5 uses our D.E.R.P. (Dynamic Exo Retention Platform) to contain the HeatCore™ in one functioning mechanical housing. This means that the internals of the marker can be completely removed and operated independently of the marker body. This allows for a fast transition between marker bodies. Keeping in mind that the SMG and the M5 use the same D.E.R.P. Housing, this continues the evolution of the ability to easily swap the core of a marker between various bodies.


With the D.E.R.P. Platform now available for over 2 years, we are overjoyed to say that on a worldwide scale, less than 1/10th of a percent of SMG sold have ever graced our presence for service, making this our most reliable platform ever, and perhaps the most reliable platform inside the MagFed market. 


Due to the rigid stabilization of the D.E.R.P., the extreme consistency of the HeatCore is improved to a standard +/- 2FPS deviation. Consistency effects the repeated trajectory of projectiles (FirstStrike or .68 Cal). This means that the higher the consistency of your marker, the closer together each individual shot will land. Consistency = Accuracy.


As always, MILSIG Markers all include our unreasonably simple, Patented Mechanical FullAuto system. With only a single point of adjustment, MILSIG’s Mechanical full auto is pretty fool proof, being simple to tune and maintain.


Holding true to the M-Series title, the M5 is made from CNC machined aluminum upper receiver, paired with our steel reinforced polymer lower, creating an extremely durable, yet lightweight platform.


The Trident bolt is the latest and greatest in HeatCore™ Bolt technology that requires no alignment or service throughout its lifespan. There will never again be a day where you need a special tool to service a bolt. You can simply ignore this step of maintenance now.


Selection is said to be the spice of life. We like selection, and we bet you do to. So the M5 Magnus model comes out of the box supporting AR-15 Barrel Nut threading for shroud mounting. The sky is the limit now with access to an arsenal of thousands of different shroud options that can be matched with any 7/8” OD barrel.


Features, Features and more features. Adding to a whole list of firsts, the newly designed magazine well from the M5 integrates a dual index ambidextrous release. This means that there is a release button in the index finger position on both sides of the magazine well. Coupled with an ambidextrous selector switch, this is a truly dual handed marker, allowing seamless transition between left and right handed shooting positions.

Additionally, this dual magazine marker allows the use of all square head magazines with room for future magazine options. It is a continual goal to support the players that purchase our markers for as long as possible. MILSIG would be nowhere without everyone that has supported us along the way. Maintaining backwards compatibility is always an important goal. We’d rather not make a new magazine that forces you to get rid of everything you already have.



Length With MATS: 27 inches

Length Without MATS: 17.87 inches

Weight: 5.2 pounds

Magazine Type: Square Head, Future Options

Fire Modes: Safe, Semi Auto, Full Auto (Mechanical)

Rate of Fire: 12.5bps locked

Shroud Compatibility: AR15 1.25”-18 Thread


Package Contents:

MILSIG M5 Magnus marker

Barrel Plug / Magazine Winder

1x 19/20 Round Hybrid Magazine

Basic tool and parts kit

Flip-up Iron Sights

MATS 13ci Buttstock

User manual


  • Length: 27″
  • Weight: 5.0 lbs
  • Polymer composite encased steel construction
  • 2 pin field strip take down
  • Mechanical Full Auto
  • Interchangeable AR-15 style grip
  • AR-15 style bolt reset handle
  • Fire selector switch/safety
  • Ambidextrous magazine release

Package includes:

  • M17 A2 Marker
  • Barrel Plug
  • 20 Round Squarehead Magazine
  • MATS 13ci compatible buttstock
  • Flip-up sights
  • 190mm Smoothbore Bull Barrel

Share this Product

More from this collection