The Geissele GDP is a compact 5.56mm AR-style pistol built around an 8" cold-hammer-forged, chrome-lined barrel, dual-telescoping GDP pistol brace, 7" MK16 M-LOK handguard & Geissele’s patented Phased Array gas system with Tri-Port tuning. It is designed for confined-space use, compact storage & serious defensive or professional applications where a full-size rifle feels about as convenient as carrying a ladder through a hallway. The GDP carries Geissele’s Super Duty DNA with the SSA X trigger, Airborne Charging Handle, Super Configurable Safety Selector, Maritime Bolt Catch, Stressproof Bolt & HUXWRX QD flash hider. Performance is focused on smooth recoil behavior, rugged durability & reliable cycling from a very short 5.56 platform, with Geissele’s reputation for premium AR components.