Geissele Super Duty Stripped Lower Receiver (Ambidextrous)

Geissele's Super Duty Stripped Lower brings full ambidextrous controls to a forged 7075-T6 mil-spec receiver at a price that undercuts every billet competitor by $150 or more. Where ADM, Radian, and LMT charge $370-450 for an ambi lower, the Super Duty lands at $175. The trade is aesthetic, not functional: forged geometry instead of billet, but the same integrated ambi selector, ambi magazine release, and ambi bolt catch milled into the receiver itself rather than bolted on.

Each lower is precision machined from a 7075-T6 forging and finished with Type III hardcoat anodize. Geissele includes laser-engraved T-marks and Safe/Fire selector indicators on both sides. The enlarged trigger guard accommodates winter gloves and the flared magwell speeds reloads without the bulk of an aftermarket magwell add-on. The fire control pocket is mil-spec (.154" pins) and works with every standard AR-15 trigger including Geissele's own SSA-E, SD-3G, and SSP triggers.

The Super Duty stripped lower is the right answer for any builder who wants ambi controls but does not want to spend $400+ on a billet receiver. It is also the lower Geissele uses on their factory Super Duty Mod 1 rifles, so it is duty-grade rather than gimmick-grade. The only buyers who should look elsewhere are those who specifically want billet aesthetics, the Radian A-DAC system, or the LMT MARS-L's high-shelf compatibility (and even then, the price gap is significant).