Apex MK13 M4 Mod 4 Carbine AEG Airsoft Gun (Black)

Brand : APEX
M4 M16 Rail System AR15 Aluminum 9mm Bearings Quick Change Spring Steel High Torque Gears Torque Motor APEX Pre Upgraded Tightbore Blowback Electric AEG
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Apex MK13 M4 Mod 4 Carbine AEG Airsoft Gun ( Black )
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Please call 1-909-869-0671 for Specials
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Item Highlights:
  • Aluminum Body
  • 9mm Bearing Gearbox w/ Quick Change Spring System
  • High Torque Motor / Steel High Torque Gear Set
  • FPS: 380-390
  • Pre-Installed 6.03mm Tightbore Inner Barrel
  • Description
  • Specifications
  • Airsoft GI Videos
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  • Questions & Answers



In the natural world, apex predators ( also known as alpha, super, or top predators ) are predators with few to no predators of their own, residing at the top of their food chain. Apex Airsoft Guns embody this spirit when it comes to providing you with the best possible out-of-the-box airsoft electric gun. Apex has taken decades of airsoft designing, manufacturing, and playing experience to bring to the airsoft player a brand of airsoft guns unmatched by anything else on the market in terms of features and price. No fancy gimmicks, no unproven technologies, no window dressing. These airsoft guns are built with function in mind, using proven, off-the-shelf technologies to maximize durability and quality, while minimizing the price.

Manufacturer: Apex
Model: MK13 MOD 4
Muzzle Velocity: 380-390 FPS
Magazine Capacity: 300rds
Package Includes: Gun, Magazine, Vertical Grip, Rail Covers

Aluminum Body Construction
Die Cast Metal 9mm Bearing Gearbox
Quick Change Spring System
Steel High Torque Gear Set Rated Up to M130 Springs
High Torque Motor
Silver Low Resistance Wiring
6.03mm Tightbore Inner Barrel (363mm)
One Piece Metal Outer Barrel
Metal Rail Interface System
Electric Blowback System
Multi-Battery Compatible Crane Stock
Ambidextrous Magazine Release
Functional Bolt Catch

Please Note:

  • Optic is NOT included.

Tech's Opinion:
"The Apex Guns have pretty much the exact same internals as CA LWRC guns. The 9mm Bearings are simply 8mm's with a larger outer race. The inner barrel looks to be of good quality (steel). The piston head, cylinder head, & cylinder are of the bore-up style. Compression is good from these parts. The hopup is the metal version of the new gen VFC. This gun also has the same design blowback mechbox as Classic Army & APS. There are some minor flaws with the design choices, such as the air nozzle compression and the mechbox durability, but for the price range its a decent choice."


  • Apex Airsoft provides an end user limited warranty for 90 days from purchase. This warranty is not transferable and only applies to new product sales.
  • Apex Airsoft shall cover 100% of the cost to replace or repair any manufacturing or material defects in the product during the warranty period.
  • Apex Airsoft shall not be liable for any normal manufacturing variations, imperfections inherent in the manufacturing or assembly process used, customary variations from the specifications, or any damages arising from the improper shipping, or the use of the goods.
  • Apex Airsoft shall not be responsible for and damage arising from the use of third party goods, such as batteries, chargers, or BBs.
  • Apex Airsoft shall not be responsible for any damage arising from normal wear and tear.
  • Any modifications or alternation of the external or internal parts of the airsoft product by an individual not authorized by Apex Airsoft, automatically voids the warranty.
  • Apex Airsoft reserves the sole right to determine whether or not the warranty applies.
  • Apex Airsoft will not cover shipping costs to Apex Airsoft, but will pay for return shipping costs to the owner.

This product was added to our catalog on Wednesday 02 April, 2014.
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