This system is designed as a complete kit. There's NO expensive jig kits and parts to purchase - our system is a COMPLETE, all inclusive package in one price!
The Phoenix, Gen2 version features Polymer80's proprietary polymer composite, a solid core design, stiffened magwell and MILSPEC buffer tube housing. The pistol grip area features a unique no-thread design specific to Polymer80 lowers.
The jig is included in the price of this system The kit comes with drill bits and the end mill bit that's required to finish your AR project the right way. Instructions are online HERE.
The 80% "reciever blank" is defined by the ATF and therefore has not yet reached a stage of manufacture that meets the definition of firearm frame or receiver found in the Gun Control Act of 1968 (GCA).