APEX Series Dimensions, Technical Specs & Rail Options

APEX Series: Physical Specifications and Accessory Mounting Features

Review the exact physical footprint, dimension metrics, and modular mounting limits of the APEX Series chassis.

📏 Physical Specifications

  • Total Combined Weight:
    3.25 lbs (chassis and barrel combined).

  • Overall Length (Collapsed):
    21.3 inches.

  • Overall Length (Fully Extended):
    24.3 inches.

  • Chassis Width:
    1.86 inches.

  • Chassis Height:
    7.5 inches.

  • Muzzle Threading:
    1/2" x 28 right-hand threading.

🎛️ Ambidextrous Controls & Features

Built for all shooters, the APEX features a completely mirrored workspace layout:

  • Ambidextrous Charging: Non-reciprocating, centerline-oriented AR-style charging handle.

  • Ejection Deflector:
    Built-in physical shell deflector allows left-handed shooting without debris contact.

  • Adjustable Buttstock:
    6-position adjustable stock modifying length-of-pull (LOP) from 13.88" to 17.88" via a center adjustment lever.

🛤️ Accessory Customization & Rails

Transform your build with standard modular rails designed to host optics, sights, and target illuminators:

  • Top Rail:
    Full-length, 35-slot aluminum Picatinny top rail ideal for optics or iron backup sights.

  • Handguard Real Estate:
    Left, right, and bottom M-LOK mounting slots (at 3, 6, and 9 o'clock) for grips, thumb rests, and lights.

  • Pistol Grip Compatibility:
    The chassis housing naturally accepts most standard flat-top AR-15 A2 style pistol grips.

    • Related Articles

    • APEX Accessories: Optics, Backup Iron Sights, and Rail Expansion

      Elevate your target acquisition times and enhance your customization real estate utilizing our official optical packages and mounting blocks. ? META Tactical Micro Red Dot Sight Custom-tuned for the flat top plane of our conversion units, this ...

    • Sales & Bundles: APEX Ultimate Upgrade and Premium SRO Kits

      For owners of our signature pistol-to-rifle bullpup system, our advanced promotional tiers allow you to completely outfit your 16" barrel carbine build at a specialized discount. ? 1. APEX Ultimate Upgrade Kit Bundle Much like our MX-1 accessory ...

    • What is the APEX Series Carbine Conversion Kit, and what is included?

      Engineered for tactical use, home defense, and range training, this compact bullpup configuration provides superior balance, speed, and handling without requiring permanent modifications to your firearm. ? What is Included in Every APEX Kit? Every ...

    • How does the trigger and safety function on the APEX Series?

      Because the APEX conversion kit repositions your pistol into a compact bullpup rifle shape, the system integrates a custom mechanical fire-control linkage. ⚡ Trigger Pull, Break, and Reset Behavior Our advanced CCK trigger linkage mechanism is ...

    • 16" Barrel Maintenance and Third-Party Chassis Warranty Warning

      To preserve the lifespan of your extended 16" match barrel and protect your purchase protection, please follow these core technical operation rules. ? Strict Third-Party Chassis Warranty Restriction Laws regarding extended handgun components vary by ...