Ambi-equipped Ironcrest lower plus LaRue MBT-2S trigger, Magpul MOE+ grip, B5 Bravo stock, buffer and spring. Add an upper and go.
Buyer must be 21 or older.
Every lower is pin-gauged and test-fit to an upper. All three ambi controls are cycled and a magazine drop is checked from both sides. Not live-fired.
Limited lifetime warranty on the Ironcrest receiver, transferable and claimed by serial number.