MK18-P 11.5" Piston Operated - "Other Firearm" (Full Ambidextrous)

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MK18-P 11.5" Piston Operated - "Other Firearm" (Full Ambidextrous)

from $1,750.00

Also available as a pistol where legal.

Superant Arms’ 11.5” Other Firearm was custom built to be one of the most compact platforms available to NJ residents. The firearm starts with an 11.5” barrel in 4150 CMV steel (Cold Hammer Forged also available) for strength and high-temperature stability for sustained shooting, chambered in 5.56x45mm. Adding to the performance is an ultra-reliable and clean operation of a gas-piston system and an Ion-bonded bolt carrier finished with your choice of 9310 nitrided or Nickel Boron coated bolt parts. The lower receiver is fully ambidextrous - bolt release, mag release, and safety selector. This other firearm is NJ compliant because of the pistol brace, vertical foregrip, and an overall length longer than 26” – do not change this configuration.

• 11.5" SOCOM barrel: 5.56x45mm Chamber – 1:7 twist – 4150 Chrome-Moly Vanadium

• Carbine-length adjustable gas piston system from Superlative Arms (instruction card included)

• Forged M4 upper receiver - lapped for precision

• Ambidextrous Bolt Release Forged Lower Receiver with tension screw

• Midwest Industries G4 10.5” handguard

• Ion-bonded bolt carrier from Superlative Arms with 9310 or Nickel-Boron coated BCG parts

• Daniel Defense Reduced Angle Grip and Vertical Foregrip

• Radian Weapons Raptor Ambidextrous Charging Handle (Geissele, BCM, and other options)

• SB Tactical – SBA3 Pistol Brace / Geissele Super 42 Braided Wire Buffer system

• Custom Nickel Boron Trigger – Single stage – 3.5lb springs (Upgrade to Geissele G2S 2-stage trigger for $100)

Accessories Included:

• 1 Magpul PMAG - standard capacity or 10 round limited for restricted states

• Discreet Take-down bag and Cable lock

Selecting Options and upgrades:

When selecting bolt/BCG options below - note that mismatching Piston vs Direct Impingement in configuration and an applicable BCG will not impact the price. All piston systems ship with an ion-bonded carrier and 9310 nitrided bolt by default unless “piston operated nickel boron” is selected ($50 upgrade). For directed impingement select either Nitrided or Nickel Boron Black ($75 upgrade)

  • NJSP has determined that this configuration is legal in the state of NJ. To be considered an “other firearm” it must be over 26” in overall length, with both a pistol brace and forward grip attached to the handguard. changing either of these features or reducing the overall length with create a firearm that is not compliant in NJ.

IMPORTANT CHECKOUT PROCEDURE

PAYMENTS ARE NOT PROCESSED ON SQUARESPACE

  • Use discount code: COMMIT during checkout to commit to purchase

  • Superant Arms will contact you with an invoice to pay through authorize.net

Model Configuration:
Barrel:
BCG or Bolt Upgrade:
Trigger Upgrade:
Quantity:
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