LMT 5.56 Lower Parts Kit – Light, No Trigger
By popular demand, we’ve established a lower parts kit less the trigger group
While our two-stage trigger group is among the best on the market, we realize you may prefer drop-in trigger groups or various other brands out there. This kit allows you to build the rest of your lower using LMT manufactured parts.
100% American Made
Includes:
- Trigger guard assembly
- Magazine catch assembly
- Bolt catch assembly
- Pivot/Takedown pin assemblies
- Buffer retaining pin/spring
- S/A ambidextrous selector assembly


D T. (verified owner) –
Used this on a standard LMT lower for a Tromix 458S HD build that are not compatible with the MARS-L lower. Decent quality that assembled without issue, but nothing fancy. They should include the winter trigger guard instead, as the standard one just gets scrapped. Also, the missing star is due to the selector being wider/sloppier than usual. A Radian will probably replace that in time anyway, as the standard length ambi lever digs into thumb.