For LCT LCK-74M / LCK-74 / LCKM / LCKM (Stainless Steel) / LCKM Economy / LCKM-63 / TX-5 / TK-104 / LTS-Keymod13.5 / LTS-Keymod9.5 / TX-MIG / TX-63 / TX-M / RPK / M-LOK LCKM .
These models should be assembled the PK-340TK Folding Stock Tube : LCK-74MN / LCKS-74M / LCK-104 / LCK-105 / LCKS-74 / TK-105 / TK-102 / M-LOK LCK104。
Only the AIMS / TIMS need to assemble the PK-200 TK104 Stock Tube.
