This MP5 lower ships fully assembled with the fire control group already installed. Its design centers on the FCG while combining a polymer outer housing with steel-reinforced internals for structural integrity. The result is a lower built to endure intensive use and the repeated heating and cooling of heavy firing. Accepts AR-15 Grips that do not have a beavertail. pictured B5 but now ships with FCD GSA grip.
 
Firearms grade Polymer + steel reinforced
Aluminum 7075 slip trip
Polyurethane Buffer (With Full Size models)
3.5lb Nickel Boron (NiBo) trigger (single stage)
Forward control Design GSA grip A1
We don’t pre-stock these lowers, yours is made just for you! Production starts right after checkout and usually takes about 1 week. All the parts are ready to go; we just need to craft the housing, assemble it, and run final testing. but generally, ships within 48 hours
 
We do not ship to the following states: CA, CO, CT, DE, FL, HI, IL, MA, MD, MN, NJ, NV, NY, OR, and RI.