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Apex MK13 Mod 5 Carbine 10.5" Full Metal EBB M4 Airosft AEG Rifle

SKU: 6MM-ACE005 APEX AirsoftOut of stock

  • Built-in electric blowback system
  • 10.5-inch CNC aluminum quad rail
  • 9mm bearing metal gearbox
  • Quick-change spring system
  • Steel high-torque gear set rated for M130 springs
  • 6.03mm tightbore inner barrel
  • Full metal receivers with 1-piece barrel
  • Metal gas block with flip-up sight
  • Ergonomic pistol/motor grip
  • Retractable six-position crane stock
  • Sling adapter mount for 1-point slings
  • Full metal bird cage flash hider


Apex MK13 Mod 5 Carbine 10.5" Full Metal EBB M4 Airosft AEG Rifle

If you’re looking for an AEG equipped with pre-upgraded internal parts, designed for aftermarket compatibility in mind, and rugged enough to withstand high-stress scenarios, the MK13 Mod 5 Carbine AEG by Apex is leagues above similarly priced AEGs. Though many intermediate to advanced airsoft players prefer to build on top of a base model AEG, this airsoft rifle already has it all. Internally, you’re looking at a 9mm bearing gearbox that houses steel gear sets rated for M130 springs. A quick-change spring gearbox lets you set your AEG up for CQB and field games with indoor limits. And an impressive electric blowback system is built-in for maximum realism. When it comes to the externals, a quick glance of this AEG shows that it’s no ordinary M4. This MK13 features an upgraded 10.5-inch free float quad rail perfect for mounting additional accessories, giving it a modern tactical look and feel. Manual back-up sights are also available in addition to any aftermarket optics. And a 6.03mm tightbore barrel keeps airflow tight and provides excellent range and FPS. Other notable features of this M4 AEG include an ergonomic motor grip, sling adapter for single-point slings, and mock metal gas block with flip-up sight.

Ammo type: Seamless 0.20g or heavier (0.23g, 0.25g, 0.26g, 0.28g, etc) BBs. For maximum performance and accuracy, Airsoft Megastore recommends GoldenBall ProSlick BBs that carry perfect spherical consistency and density, available at Airsoft Megastore for the lowest price on the market, guaranteed.

Color: BLACK

Battery Charger Recommendation: Although this fully automatic airsoft rifle comes with a standard wall charger to charge the battery, Airsoft Megastore recommends the use of a smart charger to avoid overcharging the battery(overcharged batteries may cause decreased airsoft gun performance and may shorten battery life significantly). Smart chargers not only shorten charge time significantly (up to 800% faster charging), but more importantly, also automatically shut off once the battery is fully charged to avoid overcharged batteries.

In the Box


hicap magazine

tactical foregrip

2X rail covers

cleaning rod

instruction manual


Operation Electric Automatic
Build Meta Upper/Lower Receiver, Rail System, Outer Barrel, Buffer Tube / Polymer Stock, Motor Grip, Foregrip
Firing Modes Semi-automatic, Full-automatic, w/ Functional Safety
Muzzle Velocity 400 – 410 FPS (w/ 0.20g BBs)
Gearbox Full Metal Version 2
Magazine 300rd High Capacity (gear wind-up)
Battery 9.6V Mini (not included)
Inner Barrel Length 363 mm
Inner Barrel Diameter 6.03 mm
Hop-Up Adjustable
Weight 7 pounds
Overall Length 31" in. / 34.75" in. (Retracted / Extended)

California Proposition 65 Warning: Cancer and Reproductive Harm -

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