Replace the Ruger LCP 380 magazine base plate with a rail adapter so you can attach the MantisX to your LCP 380.  

Preferred if you don't have light-accommodating holster and want to train with holster draws, or if the firearm doesn't have a rail.

Compatible with:
Ruger LCP and LCP II (380ACP only), 6-round magazine only (not compatible with 7-round magazine).
Bersa Thunder 380, Thunder 380 CC, Thunder 380 X, Firestorm 380, and TPR 380.

*Note: Not compatible with the Ruger LCP Max or Ruger LCP II chambered in 22LR.*

Part number:  MT-2005