M-15 Lowers use 7075-T6 Aluminum.
*The holder of an active FFL must contact ArmaLite to order this product.
*$4.90 will be added to the shipping of this item for the UPS adult signature fee that is required on serialized items.
Lower Receiver: 7075-T6 Aluminum (forged)
Trigger: Tactical Two Stage, 1st Stage 3.5 lbs - 2nd Stage Approximately 5-6 lbs.