Geissele Automatics Geissele Defense Pistol GDP MOD1 300 Blackout 8" Bbl Ambidextrous Black Pistol 08-688B

The Geissele Defense Pistol GDP MOD1 300 Blackout 8in in Black is a compact AR‑pattern pistol designed for reliable performance in a maneuverable configuration. It features a cold hammer forged 8in barrel with a 1:7 twist optimized for stabilizing both supersonic and subsonic .300 Blackout loads. The pistol‑length gas system supports consistent cycling, while the Geissele SSA two‑stage trigger and Reliability Enhanced BCG deliver smooth operation. Fully ambidextrous controls improve ergonomics for any shooter. A free‑float MK16 M‑LOK handguard and full‑length Picatinny rail make the platform optics ready and adaptable for accessories. The 08‑688B includes one 30‑round magazine and an adjustable pistol brace, offering a durable and versatile defensive platform. Geissele Automatics Geissele Defense Pistol GDP MOD1 300 Blackout 8" Bbl Ambidextrous Black Pistol 08-688B