-Buffer Tube Milling File (intended to shave down the top of an AR-10 Buffer tube so which the charging handle can very clear on some higher/lessen combos) Right after milling the non-receiver block over the Ghost Gunner three, your new AR-00 receiver is combined with a lower-reduce and buffer tower https://ghost-gunner-3-for-sale01512.alltdesign.com/ghost-gunner-fundamentals-explained-52288495