Specna Arms S-Mag 125rnd Mid-Cap Magazine for M4/AR-15 AEGs

Specna Arms
  • 125rnd Capacity
  • High density polymer construction
  • Compatible with most M4/AR-15 AEGs

Whether you use a Specna Arms M4/AR-15 AEG or need affordable M4 mid-caps to expand your firepower, the 125rnd S-Mag Mid-cap is what you need. This magazine is constructed from high-density polymer with a steel feed spring and is loaded through the fill/feed port at the top of the magazine body, just like other mid-caps.

The S-Mag is compatible with the vast majority of M4/AR-15 AEGs and should also fit most 416, SCAR-L and L85 AEG replicas. Being a mid-cap, this magazine won't give you away with the dreaded battle rattle as you run and is ideal for sneaky skirmishers looking for more capacity!

Full description



  • 125rnd Capacity
  • High density polymer construction - Strong and light
  • Spring loaded mid-caps - No battle rattle to give you away
  • Loaded through the fill/feed window at the top of the mag body - Use a speed loader
  • SA Texture on each side - Improves wet weather handling
  • Compatible with most M4/AR-15 AEGs - Should also fit most 416/SCAR-L/L85 AEGs

Package Includes

  • Specna Arms 125rnd S-Mag Mid-Cap Magazine for M4/AR-15 AEG



Parts & Accessories Type
Colour Wheel Greyscale
Item Colour
Black, Tan , Grey ,
Construction Icon
High density polymer with steel feed spring
Product Height
Approx. 18.8cm
Product Length
Approx. 8cm
Product Width
Approx. 3cm
Weight KG Icon
Weight (KG)
Approx. 0.166kg

Magazine Specific

Magazine Style Icon
Magazine Style
Long Gun Magazine, Assault Rifle, M4 / AR Platform,
Weapon Platform
AR, Assault Rifle,
Magazine Type
  • Medium Capacity
  • AEG
Magazine BB Capacity
Approx. 125 Rounds
Magazine BB Fill Location
Magazine BB Fill Method
Speed Loader