DROP IN FRD Overview Our drop‑in kit is built from S7 and 4140 hardened steel for strength and long service life. It installs in any standard mil‑spec lower with no permanent modifications. Quick install Pop the upper, set the unit behind the hammer, close it, and run it. Swaps between builds easily — one system you can move from rifle to rifle. Selector options Works with a standard 2‑position selector. For three positions, pair with a super‑safety cut trigger and an M16‑style 3‑position lever. Advanced users may machine a compatible 3‑position selector at their own discretion. Required setup (same operating principles as Super Safety systems) Full‑auto bolt carrier group (BCG) H3 buffer Fitment note Due to normal tolerance differences between uppers/lowers — especially uncommon variants like wide‑pocket M16 lowers or some LBE‑branded receivers — minor fitting may be required. In typical builds with a full‑auto BCG and H3 buffer, the kit drops in and runs on roughly 98% of AR‑pattern rifles “out of the box.” Legal Compliance By purchasing this product, you acknowledge that you are legally permitted to own and possess it in your jurisdiction. It is your responsibility to ensure compliance with all federal, state, and local laws. This product must be used in accordance with all applicable firearms regulations. We are not responsible for misuse or violations of law. Important Notice This product is intended for lawful use only. Purchaser assumes all responsibility for legal compliance in their jurisdiction. Restricted States California, Connecticut, Delaware, Florida, Hawaii, Illinois, Maryland, Massachusetts, Minnesota, Nevada, New Jersey, New York, Oregon, Rhode Island, Washington, Washington DC, US Territories, International.
