These Billet GENII Billet 308 Lowers & Upper Sets are marked as "Multi". Each Billet Set is completely compatible with standard AR15 parts & accept DPMS SR-25 Magazines such as Magpul 308 PMags. All Kies billet lowers start life as a solid block of 7075-T6 aluminum. AR-15 parts such as bolt catches, grips, fire control groups, and magazine releases will all work with this set. Upper receiver is stripped with no forward assist or dust cover installed.
Kies Firearms does not use castings or forgings for their billet lowers. Due to this, these lowers do take more time to produce but they feel that it delivers a superior product as all dimensions are held by the CNC machinery and are not dependent on the condition of a forging die. Kies billet lowers feature flared magwells, common in many competition AR-15 lowers. The front magazine wells are also checkered all the way to the edges offering a superb grip when using a mag well hold. These lowers also have an integral winter trigger guard.
Included with this billet set are extended takedown pins that are machined (not cast or forged) and are melonited for the best fit and finish possible.