The Geissele Ultra Duty Lower Parts Kit in Desert Dirt Color (brand part no. 05-435S) brings the same top-tier internals as Geissele’s black version to shooters who want their lower’s hardware to match a DDC-finished build. It packs an ambidextrous safety and an oversized bolt release/catch alongside the rest of the internal parts needed to complete or rebuild an AR-15 lower, all machined at Geissele’s own North Wales, Pennsylvania facility using proprietary designs rather than generic mil-spec parts. It’s built for operators and competitive shooters who expect their lower internals to hold up to the same standard as a premium upper.

Key Specifications

• Includes an ambidextrous safety selector.
• Includes an oversized bolt release/catch.
• Built with proprietary Geissele designs, not generic mil-spec parts.
• Machined at Geissele’s own facility in North Wales, Pennsylvania.
• Finished in Desert Dirt Color (DDC).

Frequently Asked Questions

What finish does this kit come in? Desert Dirt Color (DDC), for builds matching that finish.

Does this kit include an oversized bolt catch? Yes, along with an ambidextrous safety selector.

Buy the Geissele Ultra Duty AR-15 Lower Parts Kit in DDC

Match your build with premium parts from Geissele Automatics. Order it from our Lubbock, Texas gun shop for fast, insured shipping, and see our full AR lower parts selection.