Shop › GEISSELE LPK ULTRA DUTY DDC GEISSELE LPK ULTRA DUTY DDC $153.00 Geissele Automatics Lower Parts Kit, Ultra Duty, For AR-15, Desert Tan, Does Not Include Fire Control Group 05-435S Add To Cart Added! Geissele Automatics Lower Parts Kit, Ultra Duty, For AR-15, Desert Tan, Does Not Include Fire Control Group 05-435S