• MCX-SPEAR LT 9" AR CONVERSION KIT 300BLK -
  • MCX-SPEAR LT 9" AR CONVERSION KIT 300BLK- COY - SIG WUAMCXA-300B-9B-LTCOY
  • MCX-SPEAR LT 9" AR CONVERSION KIT 300BLK- COY - SIG WUAMCXA-300B-9B-LTCOY
  • MCX-SPEAR LT 9" AR CONVERSION KIT 300BLK- COY - SIG WUAMCXA-300B-9B-LTCOY
  • MCX-SPEAR LT 9" AR CONVERSION KIT 300BLK- COY - SIG WUAMCXA-300B-9B-LTCOY
New!

    The MCX SPEAR LT developed for the SF community is the most advanced platform of its kind. Convert any M4/AR15 platform into a modernized folding firearm with superior reliability, durability, and accuracy.

    Included items:

    • Complete 9" 300BLK upper assembly includes our removable 3-prong flash-hider ready to accept our SLH & SLX suppressor systems.
    • (1) SIG 2401191-R: MCX STOCK ADAPTER KIT
    • (1) SIG ADAPTER-X-FOLD: Stock Adapter - 1913 Interface Folding Knuckle
    • Includes SIG Flip Up Iron Sights


    NFA DISCLAIMER/WARNING:Upper receiver does not meet the 16" minimum barrel length requirement, and requires registration and a tax stamp with the Bureau of Alcohol, Tobacco, Firearms and Explosives (BATFE) when assembled into a complete rifle. Additional state and local restrictions may apply. It is the sole responsibility of the buyer to comply with any and all applicable laws.





    Item# Description Availability Qty
    Break
    MSRP Price Choose Qty
    SIG WUAMCXA-300B-9B-LT
    UPPER, SIGMCX, 300 BLK, 9IN, BLK, SEMI, LT, MLOK, FOLDING KNUCKLE, M4 ADAPTER,
    Out Of Stock / Not Available For Back Orders 1 $1,999.00 $1,749.00
    SIG WUAMCXA-300B-9B-LTCOY
    UPPER, SIGMCX, 300 BLK, 9IN, COY, SEMI, LT, MLOK, FOLDING KNUCKLE, M4 ADAPTER

    In Stock

    1 $1,999.00 $1,749.00
    Thread pitch 5/8 in - 24
    Compatible with the following lowers: MCX, M400, 516, and any MIL-SPEC AR-15/M4.
    Model SIG MCX LT
    Barrel Length  9"
    Caliber 300BLK