Geissele Automatics Geissele Super Duty MOD1-A 300 Blackout 8" Bbl Ambidextrous Black SBR (NFA) 08-689B

The Geissele Super Duty MOD1‑A 300 Blackout 8" SBR is a compact and capable short‑barreled rifle built on the MOD1 platform with .300 Blackout chambering. It features an 8" cold hammer forged, chrome‑lined barrel with a 1:8 twist optimized for both suppressed and unsuppressed shooting, paired with Geissele’s phased array gas system and compact gas block for reliable cycling with a broad range of ammunition. Fully ambidextrous controls and a high‑quality trigger enhance handling and ergonomics, while the integrated Picatinny rail and MK16 M‑LOK handguard make the 08‑689B optics ready straight from the factory. Compatible with standard AR‑15 magazines (typically 30‑round capacity, not included), this Black SBR delivers rugged performance in a lightweight, maneuverable configuration. Geissele Automatics Geissele Super Duty MOD1-A 300 Blackout 8" Bbl Ambidextrous Black SBR (NFA) 08-689B